WO2025119920A1

WO2025119920A1 - POST TENSION ﬂOOR JOINT

Info

Publication number: WO2025119920A1
Application number: PCT/EP2024/084550
Authority: WO
Inventors: Albert Klingeleers; Raf JAENEN; Dirk Meuwissen; Dirk VAN CAUTEREN
Original assignee: HENGELHOEF CONCRETE JOINTS NV
Current assignee: HENGELHOEF CONCRETE JOINTS NV
Priority date: 2023-12-05
Filing date: 2024-12-03
Publication date: 2025-06-12
Anticipated expiration: 2026-06-05
Also published as: NL2036422B1

Abstract

A post-tensioned ﬂoor joint (1000) for joining a ﬁrst post-tensioned ﬂoor (F1) and a second post- tensioned ﬂoor (F2), the post-tensioned ﬂoor joint comprising: - at least one base member (100); - at least one divider member (200) conﬁgured to be arranged on the at least one base member and to extend from the base member in a substantially upright position, wherein, in the mounted position, the at least one divider member deﬁnes a ﬁrst side of the joint for poring the ﬁrst post-tensioned ﬂoor (F1) and a second side of the joint for poring the second post-tensioned ﬂoor (F2); - at least one ﬁrst ﬂoor proﬁle (300) conﬁgured to be arranged on the at least one divider member wherein the at least one ﬁrst ﬂoor proﬁle comprises a ﬁrst ﬂange conﬁgured to delimit the ﬁrst post-tensioned ﬂoor at the ﬁrst side of the joint; - at least one second ﬂoor proﬁle (400) conﬁgured to be movably arranged on the at least one ﬁrst ﬂoor proﬁle (300) such that the at least one second ﬂoor proﬁle is movable in a ﬁrst direction with respect to the at least one divider member, wherein the ﬁrst direction is substantially perpendicular to the upright position of the at least one divider member, wherein the at least one second ﬂoor proﬁle comprises a second ﬂange conﬁgured to delimit the second post-tensioned ﬂoor at the second side of the joint, wherein the ﬁrst ﬂange and the second ﬂange deﬁne a channel; - at least one cover (500) conﬁgured to be arranged in the channel, wherein a shape of the at least one cover is compatible with a shape of the channel deﬁned by the ﬁrst ﬂange and the second ﬂange; wherein the post-tensioned ﬂoor joint further comprises one or more ﬁxation means (600) conﬁgured to ﬁx the at least one cover to the at least one base member (100).

Description

Post tension floor joint

Field of Invention

The field of the invention relates to a Post tension floor joint.

Background

A post-tensioned floor, also known as a post-tensioned slab or post-tensioned concrete floor, is a structural construction technique used in building floors and other horizontal elements like bridges and parking structures. It involves the use of high-strength steel cables or tendons, which are tensioned after the concrete has been poured and cured. This process imparts several advantages, including increased load-bearing capacity, reduced cracking, and improved structural performance.

The construction process begins with the creation of formwork, which is a temporary mold that defines the shape and dimensions of the concrete slab. Reinforcement steel, typically in the form of a mesh or rebar, is placed within the formwork to provide additional strength and help distribute the loads evenly. Once the formwork and reinforcement are in place, concrete is poured into the mold. The concrete mix is carefully designed to meet structural requirements and achieve the desired strength. Before the concrete hardens, plastic or metal ducts are placed within the slab. These ducts serve as channels for the post-tensioning tendons. The ducts are positioned according to the engineered design, which considers factors like load distribution and structural integrity. High-strength steel cables or tendons are inserted through the ducts. These tendons are typically composed of multiple strands of high-strength steel wires twisted together. They are designed to withstand significant tension forces. At each end of the tendon, there are specialized anchorages. These anchorages are securely fixed to the concrete structure. The tendons are pulled taut and anchored at one end while the other end remains free. Once the concrete has sufficiently cured (often after a few days or weeks), the tendons are tensioned using hydraulic jacks or other tensioning equipment. This process involves applying a significant amount of force to the tendons, which compresses the concrete slab. After the tendons have been tensioned to the desired level, they are locked off to maintain the tension. Sometimes grout, a special high-strength cementitious material, is injected into the ducts to encapsulate the tendons and protect them from corrosion.

Joining two adjacent post-tensioned concrete floors is challenging due to the need to maintain the structural integrity and continuity of the post-tensioning system while accommodating differential movements between the two adjacent structures. This is particularly important in multistory buildings or structures where different parts of the building might settle, expand, or contract differently. Expansion joints are often used to accommodate differential movements between adjacent concrete structures. These joints can be either mechanical like expansion joint assemblies or structural such as a gap filled with compressible material. The expansion joint design must consider the post-tensioning tendons' paths and ensure that they are not compromised by the joint. Load transfer mechanisms need to be designed to distribute loads from one floor to another effectively. Proper load transfer ensures that the post-tensioned slabs work together as a unified structure.

At present no reliable joints for post-tension floors exist which cover the gap between the two adjacent post-tensioned floors, which furthermore accommodate the differential movements between the two adjacent post-tensioned floors and which are sufficiently strong to effectively transfer a substantial amount of load from one floor to another, for example when a forklift drives over the joint.

Summary

The object of embodiments of the present invention is to provide a reliable and easily installable post-tensioned floor joint which covers the gap between two adjacent post-tensioned floors.

According to a first aspect a post-tensioned floor joint for joining a first post-tensioned floor and a second post-tensioned floor is provided. The post-tensioned floor joint comprising at least one base member, at least one divider member configured to be arranged on the at least one base member and to extend from the base member in a substantially upright position, wherein, in the mounted position, the at least one divider member defines a first side of the joint for poring the first post-tensioned floor and a second side of the joint for poring the second post-tensioned floor, at least one first floor profile configured to be arranged on the at least one divider member wherein the at least one first floor profile comprises a first flange configured to delimit the first posttensioned floor at the first side of the joint, at least one second floor profile configured to be movably arranged on the at least one first floor profile such that the at least one second floor profile is movable in a first direction with respect to the at least one divider member, wherein the first direction is substantially perpendicular to the upright position of the at least one divider member, wherein the at least one second floor profile comprises a second flange configured to delimit the second post-tensioned floor at the second side of the joint, wherein the first flange and the second flange define a channel, at least one cover configured to be arranged in the channel, wherein a shape of the at least one cover is compatible with a shape of the channel defined by the first flange and the second flange; wherein the post-tensioned floor joint further comprises one or more fixation means configured to fix the at least one cover to the at least one base member.

The described post-tensioned floor joint presents an innovative solution for joining two post-tensioned floors. At its core, the assembly consists of a base member and a divider member. The divider member is affixed to the base member and stands upright, effectively demarcating the assembly into two distinct sides. This configuration allows for the controlled pouring of concrete on each side, facilitating the creation of the first and second post-tensioned floors.

Moreover, the first floor profile is securely attached to the divider member and comprises a first flange. This first flange serves as a boundary, ensuring that the concrete for the first floor is contained within its designated area. The second floor profile is equipped with a second flange, effectively defining the boundary for the second post-tensioned floor. Further, the movable second floor profile, capable of perpendicular movement relative to the upright divider member, significantly enhances the adaptability and functionality of this post-tensioned floor joint. By being able to adjust the position of the second floor profile, construction teams can ensure an accurate placement of the concrete for the second post-tensioned floor. Moreover, this mobility also facilitates the expansion of the floor joints, a critical consideration in many construction scenarios. It allows for the accommodation of potential shifts in building layout, for example due to thermal expansion or contraction, or load-bearing requirements, for example when a truck drives over the joint. This adaptability ensures that the joint can be effectively utilized in a variety of construction projects, providing a versatile solution for differing floor configurations and design specifications. This key feature not only contributes to the efficiency and accuracy of the assembly process but also enhances the overall structural integrity and longevity of the constructed floors. Together, the first and second flanges create a channel. Into this channel, a cover is placed. The cover is designed with a shape compatible with the channel's dimensions, ensuring a secure fit. This element plays a crucial role in protecting the joint, enhancing its structural integrity and longevity.

To complete the assembly, one or more fixation means are employed. These fixation means serve as the securing mechanism, firmly attaching the cover to the base member. This step reinforces the entire joint, providing additional stability and durability.

The advantages of this post-tensioned floor joint are multifaceted. Firstly, its modular design allows for efficient installation and adjustment, ensuring that the pouring process is executed with precision. Furthermore, the channel-and-cover system enhances the assembly's resilience to environmental factors and wear, promoting a longer service life. The inclusion of fixation means further fortifies the joint, safeguarding against potential displacement or damage.

Preferably, the at least one divider member comprises a plate portion and one or more first guide portions, wherein the one or more first guide portions are configured to be connected to the plate portion and extend from the plate portion in the first direction, wherein the one or more guide portions are configured to guide the one or more fixation means through the post-tensioned floor joint. The divider member, with its plate portion and integrated guide portions, offers several significant advantages. The guide portions effectively direct the fixation means through the entire joint structure. This guidance ensures accurate placement and secure fastening of the components, minimizing the potential for misalignment or errors during the installation process. As a result, the joint can be efficiently and reliably constructed, providing a connection between post-tensioned floors.

Preferably, the one or more guide portions comprise a guide sleeve for guiding a respective fixation means through the post-tensioned floor joint. The guide sleeves serve as channels, engineered to facilitate the precise guidance of respective fixation means through the posttensioned floor joint. This guidance ensures that the fixation means are directed accurately and securely, minimizing the potential for misalignment or errors during the installation process. As a result, the joint can be even more efficiently and reliably constructed, providing a seamless connection between post-tensioned floors.

Preferably, the one or more guide portions comprise a first leg and a second leg extending at a sharp angle with respect to each other, wherein the first leg and the second leg are connected to each other at one end and are configured to engage the plate portion at the other end. The inclusion of guide portions with a triangular-like structural arrangement ensures a robust connection between the guide portions and the plate portion, enhancing the overall stability and structural integrity of the post-tensioned floor joint.

Preferably, the plate portion comprises one or more first through holes, wherein each through hole is configured to receive at least one tendon. These through holes are positioned to accommodate the placement of tendons, critical components in the overall structure of a post-joint floor. This feature offers several noteworthy benefits. First and foremost, it facilitates the efficient and secure anchoring of tendons within the assembly. By providing designated spaces for tendons to be lead through, the through holes ensure precise alignment and secure positioning, mitigating the potential for misalignment or displacement during installation. This meticulous placement of tendons is instrumental in achieving the desired structural integrity and load-bearing capacity in the joint. Moreover, this design consideration streamlines the assembly process, allowing for a smoother and more controlled installation of tendons. This efficiency not only saves valuable time during construction but also minimizes the likelihood of errors or complications that could arise from a less structured approach. Additionally, the presence of through holes in the plate portion enhances the adaptability of the joint. It accommodates variations in tendon placement, allowing for customization to suit specific construction requirements or load-bearing considerations. Furthermore, the incorporation of through holes in the plate portion contributes to the overall durability and longevity of the joint. It ensures that tendons are securely anchored, reducing the risk of potential wear, fatigue, or damage over time.

More preferably, the post-tensioned floor joint further comprising one or more tendon anchoring units configured to engage the plate portion and to at least partially anchor the tendon to the plate portion. The addition of one or more tendon anchoring units in the post-tensioned floor joint provides a substantial enhancement to its structural integrity and load-bearing capacity. These anchoring units are specifically designed to engage with the plate portion and serve the function of securely anchoring the tendons to it. Firstly, the presence of tendon anchoring units ensures a robust and reliable connection between the tendons and the plate portion. This secure anchoring minimizes the risk of tendon displacement or misalignment during and after installation, which is paramount for achieving the desired load-bearing capacity in the joint. Moreover, the tendon anchoring units contribute to the overall stability and strength of the assembly. By firmly anchoring the tendons to the plate portion, they distribute and absorb forces more efficiently, reducing the likelihood of structural failure or deformation under load. Additionally, the inclusion of tendon anchoring units enhances the assembly's adaptability to various construction scenarios. It allows for customization of tendon placement to suit specific load-bearing requirements or structural considerations. This flexibility is invaluable in ensuring that the joint can be tailored to meet a wide range of construction needs. Furthermore, the tendon anchoring units play a role in the long-term durability and resilience of the joint. By securely anchoring the tendons, they help prevent wear, fatigue, or damage over time, especially in environments subject to significant loads or structural stresses.

Preferably, the at least one first floor profile is configured to be movably arranged on the at least one divider member such that the at least one first floor profile is movable in a second direction with respect to the at least one divider member, wherein the second direction is a substantially vertical direction. A first floor profile which is movably arranged on the divider member, allowing for vertical movement in a substantially vertical direction, introduces several significant advantages to the post-tensioned floor joint. This feature enables precise adjustments in the assembly process, ensuring that the first floor profile can be positioned accurately relative to the divider member. This vertical mobility is particularly advantageous in accommodating variations in floor height or other structural considerations, such as thermal expansion. Additionally, the vertical movement capability of the first floor profile offers valuable flexibility in construction scenarios where floor heights may vary or where precise alignment is critical. This adjustability ensures that the joint can be effectively utilized in a variety of construction projects, providing a versatile solution for differing floor configurations and design specifications. Furthermore, the ability to move the first floor profile in a vertical direction serves as a safeguard against potential discrepancies in floor height, allowing for fine-tuning during the installation process. This minimizes the likelihood of misalignment and discrepancies that could otherwise lead to structural issues in the finished floors.

More preferably, the assembly further comprises an upright position fixation means; and wherein at least one of the plate portion and the first floor profile comprises an elongate hole oriented in an upright position and the other of the plate portion and the first floor profile comprises a through hole, wherein the elongate hole and the through hole are correspondingly positioned when the at least one first floor profile is arranged on the at least one divider member and configured to receive the upright position fixation means such that the first floor profile is fixable in any position with respect to the at least one plate portion along the elongate hole. The inclusion of an upright position fixation means in the assembly, along with the complementary design feature involving an elongate hole and a through hole, introduces a highly advantageous element to the post-tensioned floor joint. This combination allows for precise and versatile fixation of the first floor profile relative to the plate portion or divider member. The presence of the elongate hole, oriented in an upright position, in either the plate portion or the first floor profile, together with the corresponding through hole in the other component, establishes a highly adaptable system for securing the first floor profile. This configuration enables the first floor profile to be positioned and fixed at any point along the elongate hole. This flexibility ensures that the first floor profile can be securely anchored in a variety of positions, catering to specific construction requirements or loadbearing considerations. Furthermore, the upright position fixation means provides for a reliable mechanism to secure the first floor profile in place. When engaged through the elongate hole and through hole, it effectively locks the first floor profile in its chosen position, further enhancing the stability and structural integrity of the joint. This design preference affords an exceptional level of precision and adaptability during the assembly process. It ensures that the first floor profile can be securely positioned in an optimal location relative to the plate portion or divider member, guaranteeing a seamless connection between post-tensioned floors. This feature is particularly valuable in construction scenarios where precise alignment and load-bearing considerations are paramount. Preferably, the through hole comprises an elongated shape, seen in a cross section. This specific feature enhances the versatility and functionality of the through hole. The elongated shape, when viewed in cross-section, provides a more extensive area for engagement with corresponding components. Furthermore, the elongated shape offers an increased adaptability in the assembly process. It allows for a greater range of positional adjustments, enabling precise alignment of the components. This flexibility ensures that the joint can be effectively tailored to suit specific construction requirements or load-bearing considerations.

Preferably, the at least one first floor profile comprises a first plate portion and a second plate portion connected to each other via an intermediary portion, wherein the first and the second plate portion are substantially vertical oriented when the at least one first floor profile is arranged on the at least one divider member and the intermediary portion extends between the first and the second plate portion to at least partially form a bottom of the channel. More preferably, the first plate portion of the first floor profile is configured to be arranged on the first side of the at least one divider member.

Preferably, the at least one first floor profile comprises one or more second guide portions configured to be compatible with the one or more first guide portions such that when the at least one first floor profile is arranged on the at least one divider the one or more second guide portions guide the movement of the at least one first floor profile with respect to the at least one divider. The preference for the first floor profile to incorporate one or more second guide portions that are compatible with the existing first guide portions facilitates a controlled movement of the first floor profile in relation to the divider, offering several advantages. The integration of second guide portions that are compatible with the existing first guide portions ensures a harmonized interaction between these components. This compatibility allows for precise and controlled movement of the first floor profile along the divider. It facilitates smooth adjustments during the assembly process, guaranteeing accurate placement of the concrete for the first post-tensioned floor. Furthermore, this feature enhances the overall stability and structural integrity of the assembly. By guiding the movement of the first floor profile, the second guide portions help distribute forces evenly, reducing the risk of misalignment or structural issues during and after installation. This contributes to the long-term durability and reliability of the joint. Additionally, the compatibility between the first and second guide portions streamlines the assembly process, saving valuable time and effort. It ensures that adjustments can be made efficiently and accurately, minimizing the likelihood of errors or complications that could arise from a less integrated approach.

Preferably the one or more second guide portions comprise a first leg and a second leg extending at a sharp angle with respect to each other, wherein the first leg and the second leg are connected to each other at one end and are configured to engage the at least one first floor profile at the other end. In this way the guide portions form a triangular shape with the divider. This configuration not only enhances the structural integrity of the assembly but also introduces several distinct advantages. Triangles are well-known for their stability and load-bearing capabilities in engineering. This structural arrangement effectively reinforces the joint, distributing and absorbing forces with great efficiency. It ensures that the assembly can withstand substantial loads and stresses without compromising its stability or integrity. Moreover, the triangular shape created by the guide portions offers inherent rigidity to the assembly. This rigidity is invaluable in maintaining the structural integrity of the joint, especially under dynamic loads or external pressures. Furthermore, the engagement of the guide portions with the first floor profile provides an additional layer of stability and support. This connection further reinforces the overall structure, ensuring that the first floor profile remains securely positioned relative to the divider.

Preferably, a size of the one or more second guide portions is larger than the one or more first guide portions such that the one or more second guide portions can slide over and along the one or more first guide portions, or vice versa.

Preferably, the at least one second floor profile comprises a corrugated plate portion and a first plate portion, wherein the corrugated plate portion extends perpendicular to the second plate portion and is configured to extend upwardly when the at least one second floor profile is arranged on the at least one first floor profile, wherein at least one side of the cover comprises a shape corresponding to the corrugated plate portion. The preference for the second floor profile to feature a corrugated plate portion and a first plate portion introduces a highly advantageous design element to the post-tensioned floor joint. The corrugated plate portion, extending perpendicular to the first plate portion, plays a pivotal role in the assembly's structural design. When the second floor profile is arranged on the first floor profile, the corrugated plate portion extends upwardly. Additionally, the corrugated shape of the plate portion serves a significant purpose in ensuring continuous contact with wheels that traverse the joint. This design feature is particularly important in scenarios where wheeled vehicles or equipment need to pass over the joint. The corrugated profile effectively prevents any gaps or discontinuities that could impede the smooth movement of wheels, ensuring a seamless transition across the joint. Furthermore, the corrugated plate portion enhances the loadbearing capacity of the assembly. The undulating surface of the corrugations distributes forces evenly, reducing the risk of localized stress concentrations. This design consideration contributes significantly to the structural integrity and longevity of the post-tensioned floor joint. Moreover, the corresponding shape of at least one side of the cover to the corrugated plate portion ensures a snug fit. This precise compatibility further reinforces the assembly, ensuring that the cover remains securely in place, even under load or dynamic forces.

More preferably, the first plate portion of the at least one second floor profile comprises one or more recesses arranged to allow passage of the one or more fixation means when the cover is arranged on the first plate portion of the at least one second floor profile.

Preferably, the at least one first floor profile comprises one or more first anchoring dowels. More preferably, the at least one base member comprises one or more through holes correspondingly arranged with respect to the one or more first anchoring dowels such that the one or more first anchoring dowels extend from the at least one first floor profile through the at least one base member. The inclusion of first anchoring dowels in the first floor profile provides a robust means of anchoring the floor to the base member. The dowels extend through corresponding through holes in the base member, establishing a secure connection. This ensures that the first floor profile remains firmly fixed in place, even under significant loads or external forces. Furthermore, this design feature enhances the overall stability and load-bearing capacity of the assembly. By securely anchoring the first floor profile to the base member, it distributes and absorbs forces more efficiently, reducing the likelihood of structural issues or displacement during and after installation. This contributes to the long-term durability and reliability of the joint.

Preferably, the at least one second floor profile comprises one or more second anchoring dowels. Further aspects of the present invention are described by the dependent claims. The features from the dependent claims, features of any of the independent claims and any features of other dependent claims may be combined as considered appropriate to the person of ordinary skill in the art, and not only in the particular combinations as defined by the claims.

Brief description of the figures

The accompanying drawings are used to illustrate presently preferred non-limiting exemplary embodiments of devices of the present invention. The above and other advantages of the features and objects of the present invention will become more apparent and the present invention will be better understood from the following detailed description when read in conjunction with the accompanying drawings, in which:

Figure 1 schematically illustrates a perspective view of a post-tensioned floor joint joining a first post-tensioned floor and a second post-tensioned floor according to the present invention;

Figure 2 illustrates the post-tensioned floor joint shown in figure 1 in close up;

Figure 3 illustrates an exploded view of the post-tensioned floor joint shown in figure 2, as seen from a first side.

Description of embodiments

The description and drawings merely illustrate the principles of the present invention. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described or shown herein, embody the principles of the present invention and are included within its scope. Furthermore, all examples recited herein are principally intended expressly to be only for pedagogical purposes to aid the reader in understanding the principles of the present invention and the concepts contributed by the inventor(s) to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. Moreover, all statements herein reciting principles, aspects, and embodiments of the present invention, as well as specific examples thereof, are intended to encompass equivalents thereof.

Figure 1 schematically illustrates a perspective view of a post-tensioned floor joint 1000 joining a first post-tensioned floor Fl and a second post-tensioned floor F2 according to the present invention. The post-tensioned floor joint can find practical application in various construction scenarios where the joining of post-tensioned floors is required. Some example applications include high-rise constructions, especially those with reinforced concrete floors. In parking garages or structures with multiple levels, the assembly can be used to connect the post-tensioned floors. The joint's adaptability allows for variations in floor heights, which can be advantageous in accommodating different vehicle types and load distributions. Factories or industrial plants with heavy machinery often require reinforced floors. The assembly can be applied to create robust connections between floors, ensuring they can withstand the weight and vibrations generated by industrial equipment. Large commercial spaces with open floor plans may benefit from this assembly to create uninterrupted floor surfaces. The ability to precisely adjust the first floor profile is particularly useful in retail spaces where aesthetics and functionality are crucial. Indoor sports arenas or stadiums often have specific requirements for floor strength and stability, the posttensioned floor joint 1000 can be applied to create a floor surface that can withstand the demands of sporting events. Large open areas in terminals, especially those accommodating heavy foot traffic and luggage carts, can benefit from the post-tensioned floor joint 1000. In structures like large agricultural warehouses, where heavy machinery and equipment may be used, this assembly can provide a sturdy floor surface that can withstand the demands of agricultural operations. Facilities that handle heavy goods and equipment benefit from durable floor surfaces. This assembly can be applied to ensure a stable and robust connection between floors, allowing for efficient and safe operations. Areas where medical equipment and devices are utilized require stable floor surfaces. The joint's ability to adapt to variations in floor height ensures that medical equipment can be easily moved across floors. Precision and stability are paramount in research environments. The post-tensioned floor joint 1000 can be applied to create a secure and stable floor surface that can support sensitive research equipment. The above mentioned examples are nonlimiting.

Figure 2 illustrates a close-up view of the post-tensioned floor joint shown in figure 1. The post-tensioned floor joint 1000 comprises at least one base member 100. It will be clear that more than one base member 100 can be provided. When more than one base member 100 is used, a modular or scalable design for the post-tensioned floor joint is created. A post-tensioned floor joint having at least one base members 100 allows for the potential inclusion of multiple base members if necessary, possibly to accommodate varying structural demands or specific design considerations. The base member 100 can be a flat plate or can have a particular design, such as the design shown in figure 2, as will be discussed further below. The base member 100 can be configured to be connected to an adjacent base member to accommodate specific length considerations.

The post-tensioned floor joint 1000 comprises at least one divider member 200. More than one divider member can also be provided, for example a plurality of divider members 200 can be provided. In such a case it is preferred that the plurality of divider members 200 are interconnectable to each other. The at least one divider member 200 is configured to be arranged on the at least one base member. In a mounted position the at least one divider member 200 extends from the base member in a substantially upright position and defines a first side of the joint for poring the first post-tensioned floor Fl and a second side of the joint for poring the second post- tensioned floor F2. The post tensioned floors F 1 and F2 need not be poured in a single casting. For example, the post tension floor Fl can be poured, tensioned, and then a second pour can be cast to connect the previously poured and tensioned post tension floor Fl to the post-tensioned floor joint 1000. The at least one divider member 200 can be pre-arranged on the at least one base member 100, for example at the factory or can be arranged on site. The divider member 200 and the at least one base member can also be formed from one piece, for example as a T-beam or as a welded construction. Throughout the text, the expressions divider member and divider are interchangeably used.

The post-tensioned floor joint 1000 comprises at least one first floor profile 300. The at least one first floor profile 300 is configured to be arranged on the at least one divider member 200 wherein the at least one first floor profile comprises a first flange configured to delimit the first post-tensioned floor at the first side of the joint. The first floor profile 300 is designed to be positioned on the divider member 200. Within the first floor profile, there is a specific feature known as the first flange 330, shown in figure 3. This flange 330 plays a significant role in the pouring process of the first post-tensioned floor. It acts as a boundary or border that demarcates and contains the concrete material, ensuring it remains within the designated area. Specifically, this first flange 330 defines the perimeter of the first post-tensioned floor at the first side of the joint. It guarantees that the concrete is accurately poured and contained, minimizing the risk of uneven distribution or spillage. This meticulous control over the pouring process ultimately contributes to the creation of a structurally sound and uniform first post-tensioned floor.

The post-tensioned floor joint 1000 further comprises at least one second floor profile 400. The at least one second floor profile 400 is configured to be movably arranged on the at least one first floor profile 300 such that the at least one second floor profile is movable in a first direction with respect to the at least one divider member. The first direction is substantially perpendicular to the upright position of the at least one divider member, wherein the at least one second floor profile comprises a second flange 410, see figure 3, configured to delimit the second post-tensioned floor at the second side of the joint, wherein the first flange and the second flange define a channel. The second floor profile 400 is designed to be arranged in a way that allows for movement on the first floor profile 300. This mobility enables adjustments in a specific direction, referred to as the first direction. This direction is perpendicular to the vertical orientation of the divider member 200, when the divider member is arranged on the base member. This characteristic is advantageous in ensuring that the second floor profile 400 can be precisely positioned with respect to the divider member 200 and the first floor profile 300. Also, the mobility of the second floor profile 400 accommodates the natural expansion and contraction of the poured concrete. This dynamic feature ensures that the concrete can undergo thermal variations and other environmental factors without imposing undue stress on the joint 1000. By permitting controlled movement in response to these changes, the assembly 1000 maintains its structural integrity over time, contributing to the longevity and stability of the post-tensioned floors. Moreover, the second floor profile 400 is equipped with a second flange 410. It functions as a boundary or edge that confines and defines the perimeter of the second post-tensioned floor, referred to as F2 in figure 1 , specifically at the second side of the joint 1000. This ensures that the concrete material for the second floor F2 is contained within the designated area.

The post-tensioned floor joint 1000 further comprises at least one cover 500 and one or more fixation means 600. The at least one cover is configured to be arranged in the channel. A shape of the at least one cover 500 is compatible with a shape of the channel defined by the first flange and the second flange. The one or more fixation means 600 are configured to fix the at least one cover to the at least one base member 100. The described post-tensioned floor joint presents an innovative solution for joining two post-tensioned floors. The above mentioned post-tensioned floor joint 1000 allows to bridge gaps between the first and second floors ranging from 1 mm to 10 cm.

Figure 3 further show that the at least one divider member 200 can comprises a plate portion 210 and one or more first guide portions 220. The one or more first guide portions 220 are configured to be connected to the plate portion 210 and extend from the plate portion in the first direction. The first direction corresponds to the previously described first direction. Moreover, the one or more guide portions 200 are configured to guide the one or more fixation means 600 through the post-tensioned floor joint. The divider member 200, comprising a plate portion 210 and the guide portions 220, significantly enhances the functionality and efficiency of the post-tensioned floor joint 1000. The guide portions 220 ensure precise placement and secure fastening of the various components, effectively minimizing the potential for misalignment or errors during the installation process. As a result, the joint 1000 can be assembled with a high degree of accuracy and reliability. This is particularly advantageous in providing a robust connection between posttensioned floors. The design of the divider member 200 not only streamlines the installation process but also contributes to the overall structural integrity and longevity of the constructed floors.

As shown in figure 3 the one or more guide portions 220 can comprise a guide sleeve for guiding a respective fixation means 600 through the post-tensioned floor joint 1000. The guide sleeves serve as channels, engineered to facilitate the precise guidance of respective fixation means 600 through the post-tensioned floor joint. This guidance ensures that the fixation means 600 are directed accurately and securely, minimizing the potential for misalignment or errors during the installation process. As a result, the joint can be even more efficiently and reliably constructed, providing a robust connection between post-tensioned floors. Additionally, the one or more guide portions 220 comprise a first leg and a second leg extending at a sharp angle with respect to each other, wherein the first leg and the second leg are connected to each other at one end and are configured to engage the plate portion at the other end. The inclusion of guide portions with a triangular-like structural arrangement ensures a robust connection between the guide portions and the plate portion, enhancing the overall stability and structural integrity of the post-tensioned floor joint. Figure 3 shows that more than one guide portion 220 can be provided, for example four guide portions 220. The plurality of guide portions 220 are preferably arranged at a distance from each other. The distance being preferably constant between the respective guide portions.

The plate portion 210 can further comprises one or more first through holes 211, wherein each through hole 211 is configured to receive at least one tendon. The tendons are shown in figure 1. These through holes 211 are positioned to accommodate the placement of tendons, critical components in the overall structure of a post-joint floor. This feature offers several noteworthy benefits. First and foremost, it facilitates the efficient and secure anchoring of tendons within the assembly. By providing designated spaces for tendons to be lead through, the through holes ensure precise alignment and secure positioning, mitigating the potential for misalignment or displacement during installation. This meticulous placement of tendons is instrumental in achieving the desired structural integrity and load-bearing capacity in the joint. Moreover, this design consideration streamlines the assembly process, allowing for a smoother and more controlled installation of tendons. This efficiency not only saves valuable time during construction but also minimizes the likelihood of errors or complications that could arise from a less structured approach. Additionally, the presence of through holes 211 in the plate portion 210 enhances the adaptability of the joint. It accommodates variations in tendon placement, allowing for customization to suit specific construction requirements or load-bearing considerations. Furthermore, the incorporation of through holes 211 in the plate portion 210 contributes to the overall durability and longevity of the joint. It ensures that tendons are securely anchored, reducing the risk of potential wear, fatigue, or damage over time. In order to anchor the tendons, the posttensioned floor joint 1000 can further compriseone or more tendon anchoring units 700 configured to engage the plate portion and to at least partially anchor the tendon to the plate portion 210. The addition of one or more tendon anchoring units in the post-tensioned floor joint 1000 provides a substantial enhancement to its structural integrity and load-bearing capacity. These anchoring units 700 are specifically designed to engage with the plate portion 210 and serve the function of securely anchoring the tendons to it. Firstly, the presence of tendon anchoring units ensures a robust and reliable connection between the tendons and the plate portion. This secure anchoring minimizes the risk of tendon displacement or misalignment during and after installation, which is paramount for achieving the desired load-bearing capacity in the joint. Moreover, the tendon anchoring units 700 contribute to the overall stability and strength of the assembly. By firmly anchoring the tendons to the plate portion 210, they distribute and absorb forces more efficiently, reducing the likelihood of structural failure or deformation under load. Additionally, the inclusion of tendon anchoring units enhances the assembly's adaptability to various construction scenarios. It allows for customization of tendon placement to suit specific load-bearing requirements or structural considerations. This flexibility is invaluable in ensuring that the joint can be tailored to meet a wide range of construction needs. Furthermore, the tendon anchoring units play a role in the long-term durability and resilience of the joint. By securely anchoring the tendons, they help prevent wear, fatigue, or damage over time, especially in environments subject to significant loads or structural stresses. It is preferred that for each through hole 211 a tendon anchoring unit 700 is provided.

It is advantageous that the at least one first floor profile 300 is configured to be movably arranged on the at least one divider member 200 such that the at least one first floor profile 300 is movable in a second direction with respect to the at least one divider member 200. The second direction is a substantially vertical direction. The second direction is in line with the upright position of the divider member 200. This introduces several significant advantages to the posttensioned floor joint 1000. This feature enables precise adjustments in the assembly process, ensuring that the first floor profile can be positioned accurately relative to the divider member. This vertical mobility is particularly advantageous in accommodating variations in floor height or other structural considerations, such as thermal expansion. Additionally, the vertical movement capability of the first floor profile 300 offers valuable flexibility in construction scenarios where floor heights may vary or where precise alignment is critical. Furthermore, the ability to move the first floor profile in a vertical direction serves as a safeguard against potential discrepancies in floor height, allowing for fine-tuning during the installation process. This minimizes the likelihood of misalignment and discrepancies that could otherwise lead to structural issues in the finished floors. In order to fix the position of the first floor profile 300 an upright position fixation means 800 can be provided. To accommodate the upright position fixation means and to allow a degree of freedom, at least one of the at least one of the plate portion 210 and the first floor profile 300 comprises an elongate hole oriented in an upright position and the other of the plate portion 210 and the first floor profile 300 comprises a through hole. In Figure 3 the first floor profile 300 comprises the elongate hole 311 and the plate portion of the divider member comprises the through hole. The elongate hole 311 and the through hole are correspondingly positioned when the at least one first floor profile 300 is arranged on the at least one divider member 200 and configured to receive the upright position fixation means 800 such that the first floor profile 300 is fixable in any position with respect to the at least one plate portion 210 along the elongate hole. The inclusion of an upright position fixation means 800 in the assembly, along with the complementary design feature involving an elongate hole and a through hole 212, introduces a highly advantageous element to the post-tensioned floor joint. This combination allows for precise and versatile fixation of the first floor profile relative to the plate portion or divider member. The presence of the elongate hole 311, oriented in an upright position, in either the plate portion 210 or the first floor profile 300, together with the corresponding through hole in the other component, establishes a highly adaptable system for securing the first floor profile 300. This configuration enables the first floor profile 300 to be positioned and fixed at any point along the elongate hole. This flexibility ensures that the first floor profile 300 can be securely anchored in a variety of positions, catering to specific construction requirements or load-bearing considerations. Furthermore, the upright position fixation means 800 provides for a reliable mechanism to secure the first floor profile 300 in place. When engaged through the elongate hole and through hole, it effectively locks the first floor profile 300 in its chosen position, further enhancing the stability and structural integrity of the joint. This design preference affords an exceptional level of precision and adaptability during the assembly process. The through hole 212 can also comprise an elongated shape, seen in a cross section. This specific feature enhances the versatility and functionality of the through hole. The elongated shape, when viewed in cross-section, provides a more extensive area for engagement with corresponding components. Furthermore, the elongated shape offers an increased adaptability in the assembly process. It allows for a greater range of positional adjustments, enabling precise alignment of the components. This flexibility ensures that the joint can be effectively tailored to suit specific construction requirements or load-bearing considerations. It will be clear that a plurality of elongate holes 311 and through holes 212 can be provided. In such a case the elongate holes 311 and through holes 212 are preferably evenly distributed along the length of the first floor profle 300 and the divider member 200.

Figure 3 shows that that the first floor profile comprises an S-like shape. In such an exemplary embodiment the at least one first floor profile 300 comprises a first plate portion 310 and a second plate portion 330 connected to each other via an intermediary portion 340, wherein the first and the second plate portion are substantially vertical oriented when the at least one first floor profile 300 is arranged on the at least one divider member 200 and the intermediary portion 340 extends between the first and the second plate portion to at least partially form a bottom of the channel. A dimension of the intermediary portion 340 at least partially determines a width of the channel.

Preferably, the at least one first floor profile 300 comprises one or more second guide portions 320 configured to be compatible with the one or more first guide portions 220 of the divider member 200 such that when the first floor profile 300 is arranged on the at least one divider member 200, the one or more second guide portions 320 guide the movement of the at least one first floor profile 300 with respect to the at least one divider member 200. The preference for the first floor profile to incorporate one or more second guide portions that are compatible with the existing first guide portions facilitates a controlled movement of the first floor profile in relation to the divider, offering several advantages. The integration of second guide portions that are compatible with the existing first guide portions ensures a harmonized interaction between these components. This compatibility allows for precise and controlled movement of the first floor profile along the divider. It facilitates smooth adjustments during the assembly process, guaranteeing accurate placement of the concrete for the first post-tensioned floor. Furthermore, this feature enhances the overall stability and structural integrity of the assembly. This contributes to the longterm durability and reliability of the joint. Additionally, the compatibility between the first and second guide portions streamlines the assembly process, saving valuable time and effort. It ensures that adjustments can be made efficiently and accurately, minimizing the likelihood of errors or complications that could arise from a less integrated approach. Similarly to the first guide portions, the one or more second guide portions 320 can comprise a first leg and a second leg extending at a sharp angle with respect to each other, wherein the first leg and the second leg are connected to each other at one end and are configured to engage the at least one first floor profile at the other end. In this way the guide portions form a triangular shape with the divider 200. Is it preferred that a size of the one or more second guide portions closely corresponds to a size of the one or more first guide portions such that the second guide portions snugly but loosely fit over the first guide portions. The second guide portions are larger than the one or more first guide portions such that the one or more second guide portions can slide over and along the one or more first guide portions, or vice versa.

As shown in figure 3, the at least one second floor profile 400 comprises a corrugated plate portion 410 and a second plate portion 420, wherein the corrugated plate portion extends perpendicular to the second plate portion 420 and is configured to extend upwardly when the at least one second floor profile is arranged on the at least one first floor profile, wherein at least one side of the cover comprises a shape corresponding to the corrugated plate portion. The preference for the second floor profile to feature a corrugated plate portion and a first plate portion introduces a highly advantageous design element to the post-tensioned floor joint. The corrugated plate portion, extending perpendicular to the first plate portion, plays a pivotal role in the assembly's structural design. When the second floor profile 400 is arranged on the first floor profile 300, the corrugated plate portion extends upwardly. Additionally, the corrugated shape of the plate portion serves a significant purpose in ensuring continuous contact with wheels that traverse the joint. This design feature is particularly important in scenarios where wheeled vehicles or equipment need to pass over the joint. The corrugated profile effectively prevents any gaps or discontinuities that could impede the smooth movement of wheels, ensuring a seamless transition across the joint. Furthermore, the corrugated plate portion enhances the load-bearing capacity of the assembly. The undulating surface of the corrugations distributes forces evenly, reducing the risk of localized stress concentrations. This design consideration contributes significantly to the structural integrity and longevity of the post-tensioned floor joint. Moreover, the corresponding shape of at least one side of the cover to the corrugated plate portion ensures a snug fit. This precise compatibility further reinforces the assembly, ensuring that the cover remains securely in place, even under load or dynamic forces. More preferably, the second plate portion 420 of the at least one second floor profile 400 comprises one or more recesses 450 arranged to allow passage of the one or more fixation means when the cover is arranged on the first plate portion of the at least one second floor profile.

Figure 3 further shows that the at least one first floor profile 300 comprises one or more first anchoring dowels 350. In such an exemplary embodiment, the at least one base member 100 comprises one or more through holes correspondingly arranged with respect to the one or more first anchoring dowels 350 such that the one or more first anchoring dowels extend from the at least one first floor profile through the at least one base member. The inclusion of first anchoring dowels in the first floor profile provides a robust means of anchoring the floor to the base member. The dowels extend through corresponding through holes in the base member, establishing a secure connection. This ensures that the first floor profile remains firmly fixed in place, even under significant loads or external forces. Furthermore, this design feature enhances the overall stability and load-bearing capacity of the assembly. By securely anchoring the first floor profile to the base member, it distributes and absorbs forces more efficiently, reducing the likelihood of structural issues or displacement during and after installation. This contributes to the long-term durability and reliability of the joint.

The at least one second floor profile 400 can also comprise one or more second anchoring dowels 440.

Although the base member 100, the divider member 200, the first floor profile 300, the second floor profile 300, and the cover 500 are shown as individual elements, it will be clear that these features can be integrally formed to form a single piece. For example, the first floor profile 300 and the divider member can be formed from one piece.

It should be noted that the above-mentioned embodiments illustrate rather than limit the present invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word “comprising” does not exclude the presence of elements or steps not listed in a claim. The word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several distinct elements and by means of a suitably programmed computer. In claims enumerating several means, several of these means can be embodied by one and the same item of hardware. The usage of the words “first”, “second”, “third”, etc. does not indicate any ordering or priority. These words are to be interpreted as names used for convenience.

In the present invention, expressions such as “comprise”, “include”, “have”, “may comprise”, “may include”, or “may have” indicate existence of corresponding features but do not exclude existence of additional features.

Whilst the principles of the present invention have been set out above in connection with specific embodiments, it is to be understood that this description is merely made by way of example and not as a limitation of the scope of protection which is determined by the appended claims.

Claims

1. A post-tensioned floor j oint ( 1000) for j oining a fir st post-tensioned floor (Fl) and a second posttensioned floor (F2), the post-tensioned floor joint comprising:

- at least one base member (100);

- at least one divider member (200) configured to be arranged on the at least one base member and to extend from the base member in a substantially upright position, wherein, in the mounted position, the at least one divider member defines a first side of the joint for poring the first post-tensioned floor (Fl) and a second side of the joint for poring the second post-tensioned floor (F2);

- at least one first floor profile (300) configured to be arranged on the at least one divider member wherein the at least one first floor profile comprises a first flange configured to delimit the first post-tensioned floor at the first side of the joint;

- at least one second floor profile (400) configured to be movably arranged on the at least one first floor profile (300) such that the at least one second floor profile is movable in a first direction with respect to the at least one divider member, wherein the first direction is substantially perpendicular to the upright position of the at least one divider member, wherein the at least one second floor profile comprises a second flange configured to delimit the second post-tensioned floor at the second side of the joint, wherein the first flange and the second flange define a channel;

- at least one cover (500) configured to be arranged in the channel, wherein a shape of the at least one cover is compatible with a shape of the channel defined by the first flange and the second flange; wherein the post-tensioned floor joint further comprises one or more fixation means (600) configured to fix the at least one cover to the at least one base member (100).

2. The post-tensioned floor joint (1000) of claim 1, wherein the at least one divider member (200) comprises a plate portion (210) and one or more first guide portions (220), wherein the one or more first guide portions are configured to be connected to the plate portion and extend from the plate portion in the first direction, wherein the one or more guide portions are configured to guide the one or more fixation means (600) through the post-tensioned floor joint.

3. The post-tensioned floor joint (1000) of claim 2, wherein the one or more guide portions comprise a guide sleeve for guiding a respective fixation means through the post-tensioned floor joint.

4. The post-tensioned floor joint (1000) according to any one of the claims 2-3, wherein the one or more guide portions comprise a first leg and a second leg extending at a sharp angle with respect to each other, wherein the first leg and the second leg are connected to each other at one end and are configured to engage the plate portion (210) at the other end.

5. The post-tensioned floor joint (1000) according to any one of the claims 2-4, wherein the plate portion comprises one or more first through holes (211), wherein each through hole is configured to receive at least one tendon.

6. The post-tensioned floor joint (1000) according to the previous claim, the post-tensioned floor joint further comprising one or more tendon anchoring units (700) configured to engage the plate portion and to at least partially anchor the tendon to the plate portion.

7. The post-tensioned floor joint (1000) according to any one of the previous claims, wherein the at least one first floor profile (300) is configured to be movably arranged on the at least one divider member such that the at least one first floor profile is movable in a second direction with respect to the at least one divider member, wherein the second direction is a substantially vertical direction.

8. The post-tensioned floor joint (1000) according to any one of the claims 2-6 and claim 7, wherein the assembly further comprises an upright position fixation means; and wherein at least one of the plate portion (210) and the first floor profile (300) comprises an elongate hole (212) oriented in an upright position and the other of the plate portion and the first floor profile (300) comprises a through hole (311), wherein the elongate hole and the through hole are correspondingly positioned when the at least one first floor profile is arranged on the at least one divider member and configured to receive the upright position fixation means (800) such that the first floor profile is fixable in any position with respect to the at least one plate portion along the elongate hole.

9. The post-tensioned floor joint (1000) according to the previous claim, wherein the through hole (311) comprises an elongated shape, seen in a cross section.

10. The post-tensioned floor joint (1000) according to any one of the previous claims, wherein the at least one first floor profile comprises a first plate portion (310) and a second plate portion (330) connected to each other via an intermediary portion (340), wherein the first and the second plate portion are substantially vertical oriented when the at least one first floor profile is arranged on the at least one divider member and the intermediary portion extends between the first and the second plate portion to at least partially form a bottom of the channel.

11. The post-tensioned floor joint (1000) according to the previous claim, wherein the first plate portion of the first floor profile is configured to be arranged on the first side of the at least one divider member.

12. The post-tensioned floor joint (1000) according to any one of the previous claims 2-11 and at least claims 2-4, wherein the at least one first floor profile (300) or the at least one second floor profile (400) comprises one or more second guide portions (320) configured to be compatible with the one or more first guide portions such that when the at least one first floor profile is arranged on the at least one divider the one or more second guide portions guide the movement of the at least one first floor profile or the at least one second floor profile with respect to the at least one divider.

13. The post-tensioned floor joint (1000) according to the previous claim, wherein the one or more second guide portions comprise a first leg and a second leg extending at a sharp angle with respect to each other, wherein the first leg and the second leg are connected to each other at one end and are configured to engage the at least one first floor profile (300) at the other end.

14. The post-tensioned floor joint (1000) according to the previous claim, wherein a size of the one or more second guide portions is larger than the one or more first guide portions such that the one or more second guide portions can slide over and along the one or more first guide portions, or vice versa.

15. The post-tensioned floor joint (1000) according to any one of the previous claims, wherein the at least one second floor profile (400) comprises a corrugated plate portion (410) and a first plate portion (420), wherein the corrugated plate portion extends perpendicular to the second plate portion and is configured to extend upwardly when the at least one second floor profile is arranged on the at least one first floor profile, wherein at least one side of the cover comprises a shape corresponding to the corrugated plate portion.

16. The post-tensioned floor joint (1000) according to the previous claim, wherein the first plate portion of the at least one second floor profile comprises one or more recesses arranged to allow passage of the one or more fixation means (600) when the cover is arranged on the first plate portion of the at least one second floor profile.

17. The post-tensioned floor joint (1000) according to any one of the previous claims, wherein the at least one first floor profile comprises one or more first anchoring dowels.

18. The post-tensioned floor joint (1000) according to the previous claim, wherein the at least one base member comprises one or more through holes correspondingly arranged with respect to the one or more first anchoring dowels such that the one or more first anchoring dowels extend from the at least one first floor profile through the at least one base member.

19. The post-tensioned floor joint (1000) according to any one of the previous claims, wherein the at least one second floor profile comprises one or more second anchoring dowels.