GB2604849A - Split-level structure - Google Patents
Split-level structure Download PDFInfo
- Publication number
- GB2604849A GB2604849A GB2019865.1A GB202019865A GB2604849A GB 2604849 A GB2604849 A GB 2604849A GB 202019865 A GB202019865 A GB 202019865A GB 2604849 A GB2604849 A GB 2604849A
- Authority
- GB
- United Kingdom
- Prior art keywords
- split
- beams
- floor
- bellyband
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/26—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/70—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/12—Load-carrying floor structures formed substantially of prefabricated units with wooden beams
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The purpose of the present invention is to provide a split-level structure: that enables horizontal force between the split-level structure and a standard floor side to be efficiently transmitted so that damage at a boundary portion between the split-level structure and the standard floor can be suppressed, when an earthquake etc. occurs; and that further enables freedom of design to be increased by reducing constraints on the building form. As a means for achieving the foregoing, this split-level structure is configured as follows: above or below outer-circumferential floor beams (3)(3) of a split-level (4), middle beams (5)(5) are framed at the same height as floor beams (1)(1) of a standard floor (2); and transmission beams (10)(10) are interposed, in every important location, between the middle beams (5)(5) and the outer-circumferential floor beam (3)(3), the transmission beams being for transmitting horizontal force from the outer-circumferential floor beams (3)(3) to the middle beams (5)(5).
Description
SPLIT-LEVEL STRUCTURE
TECHNICAL FIELD
[0001] The present invention relates to a structure of a split-level to be provided mainly in a wooden house in a state where a step is formed with respect to a general floor portion.
BACKGROUND ART
[0002] In a case where a split-level with which a step is formed between the split-level and the general floor portion is provided in a house, there is a problem when an C\J earthquake or the like occurs that horizontal force is not efficiently transmitted between C\I the general floor portion side and the split-level side, separate movement occurs, and damage is likely to occur especially at a boundary part between the general floor portion and the split-level, that is, at the step part [0003] Accordingly, various structural reinforcement measures are required in order to solve such a problem. However, at present, there is no official design standard regarding a split-level, and only a few guidelines can be used as a reference.
[0004] With reference to those guidelines, in a case where a split-level is provided, it has been proposed that structural plywoods (35) (35) are attached across an outer wall surface (32) on the general floor portion (31) side and an outer wall surface (34) on the split-level (33) side as shown in FIG. 5, and the outer wall surfaces (32) (34) are integrated, so that the general floor portion (31) side and the split-level (33) side are interlocked
CITATION LIST
PATENT LITERATURE
[0005] Patent Literature 1 Japanese Patent Application Laid-Open No, H09-041480
SUMMARY OF THE INVENTION
TECHNICAL PROBLEMS
[0006] However, in the structure in which the structural plywoods (35) (35) are attached as described above, the outer wall surface (32) on the general floor portion (31) side and the outer wall surface (34) on the split-level (33) side are required to be disposed in the same plane Moreover, because of existence of the structural plywoods (35) (35), there are many restrictions on the building form such that openings (36) (36) C\I C\I cannot be provided near the boundary part of the outer wall surfaces (32) (34), and the CO degree of freedom in design is lowered.
$01 [0007] Therefore, an object of the present invention is to solve the above problems by providing a split-level structure that efficiently transmits horizontal force to and from the general floor portion side, can suppress damage to the boundary part between the split-level structure and the general floor portion in the event of an earthquake or the like, and can heighten the degree of freedom in design by reducing restrictions on the building form.
[0008] To solve the above problems, this split-level structure is comprised of a bellyband beam constructed above or below an outer peripheral floor beam of a split-level at the same height level as a floor beam of a general floor portion and transmission beams for transmitting horizontal force from the outer peripheral floor beam to the bellyband beam interposed at key pints between the bellyband beam and the outer peripheral floor beam.
Concretely, at least one of the transmission beams is disposed on each side of the split-level and the transmission beams are disposed directly below a bearing wall provided on the bellyband beam.
Moreover, the transmission beams are joined to the outer peripheral floor beam and the bellyband beam using a tenon.
[0009]Also, the bellyband beam is constructed above the outer peripheral beam, a pair of opening columns are erected on the outer peripheral beam at a lacking portion where a part of the bellyband beam is lacking, and the bellyband beam divided by a lack is coupled to the opening columns, so that an opening such as a window or an entrance door is provided between the opening columns. C\J
C\I DESCRIPTION OF FIGURES
CO [0010] [Fig.1] Perspective figure for frame structure of a wooden house, which employed split-level structure, showing one embodiment of this invention [Fig.2] Longitudinal section figure showing the joined state of peripheral floor beam, transmission beam and bellyband beams [Fig.3] Front figure near the opening [Fig.4] Figure showing a wooden house with few restrictions on the building [Fig.5] Figure showing a wooden house with many restrictions on the building
DESCRIPTION OF EMBODIMENT
[0011] The following description will explain an embodiment of the present invention in detail with reference to the drawings FIG. 1 shows a frame structure of a wooden house in which a split-level structure according to an embodiment of the present invention is employed. In the figure, denoted at (1) (1)... are floor beams of a general floor portion (2) on the second floor of a house, and denoted at (3) (3).. are outer peripheral floor beams of a square split-level (4) located lower than the general floor portion (2).
[0012] In addition, in a boundary part (6) between the general floor portion (2) and the split-level (4), the floor beam (1) and the outer peripheral floor beam (3) are overlapped at an interval in the vertical direction.
[0013] Directly above the outer peripheral floor beams (3) (3)... excluding the boundary part (6), bellyband beams (5) (5)... are constructed at the same height level as the floor beams (1) (I)... of the general floor portion (2) along those outer peripheral C\I floor beams (3) (3) These bellyband beams (5) (5). are coupled in a U-shape, and the C\I floor beam (1) of the general floor portion (2) is located in the open part of the U-shape.
(0 That is, the bellyband beams (5) (5)... and the floor beam (1) are coupled in a square shape and disposed directly above the outer peripheral beams (3) (3) coupled in a square shape.
[0014] In addition, transmission beams (10) (10)... for transmitting horizontal force from the outer peripheral floor beams (3) (3)... to the bellyband beams (5) (5)... are interposed at key points between the outer peripheral floor beams (3) (3)... and the bellyband beams (5) (5)....
[0015] These transmission beams (10) (10).. are each made of a wooden square timber as with the floor beams (I) (I).. the outer peripheral floor beams (3) (3)... and the bellyband beams (5) (5) and are joined to a bellyband beam (5) and an outer peripheral floor beam (3) by inserting the upper half of each of tenon pipes (11) (11) inserted into an upper surface part of the wooden square timber into a lower surface part of the bellyband beam (5) and inserting the lower half of each of tenon pipes (11) (11)...
inserted into a lower surface part of the wooden square timber into an upper surface part of the outer peripheral beam (3) as shown in FIG. 2.
[0016] It is to be noted that the transmission beams (10) (10) are also interposed at key points between an outer peripheral floor beam (3) and a floor beam (1) in the boundary part (6), and are joined to the floor beam (1) and the outer peripheral floor beam (3) using tenon pipes (11) (11). as with the above description.
[0017] In addition, at least one of these transmission beams (10) (10)... is disposed on each side of the split-level (4) while being placed between a bellyband beam (5) and an outer peripheral floor beam (3) and also between the floor beam (1) and the outer peripheral floor beam (3) without protruding laterally, so as not to interfere with wall C\J surface constmction. As a result, horizontal force applied to the outer peripheral floor C\I beams (3) (3) can be transmitted uniformly and efficiently.
(0 [0018] Moreover, in a case where a bearing wall (16) having a brace (15) on the bellyband beam (5) is disposed, a transmission beam (10) is disposed directly below the bearing wall (16).
[0019] Furthermore, in a case where an opening (20) such as a window or an entrance door extending to the floor level is provided in the split-level (4), a part of the bellyband beam (5) is caused to lack as shown in FIG. 3, so that a pair of opening columns (22) (22) are erected from the outer peripheral floor beam (3) in the lacking portion (21). In addition, the bellyband beams (5) (5) divided by the lack are coupled to those opening columns (22) (22), at least one of the transmission beams (10) ( 10) is disposed at each of both sides of the lacking portion (21) so as to compensate for the decrease in strength due to the lacking portion (21), and the opening (20) such as a window or an entrance door is provided between the opening columns (22) (22).
[0020] In a case where the opening (20) is provided in the boundary part (6), it is to be noted that the floor beam (1) is caused to lack as shown in FIG. 1, so that the opening columns (22) (22) are erected as with the above description.
[0021] Regarding the above configuration, when an earthquake or the like occurs, horizontal force applied to the outer peripheral floor beams (3) (3) .. of the split-level (4) is transmitted through the transmission beams (10) (10)... to the bellyband beams (5) (5)... located at the same height as the floor beams (1) (1)... and to the floor beam (1) of the boundary part (6), and therefore the horizontal force is efficiently transmitted between the general floor potion (2) side and the split-level (4) side, and the general floor portion side and the split-level side are integrally interlocked. Accordingly, excessive force is not applied to the boundary part (6) between the general floor portion (2) and the split-level (4), and damage to the boundary part (6) can be prevented. C\J
C\I [0022] In a case where the split-level (4) is provided as described above, a new (0 reinforcement measure different from a conventional method of attaching a structural $00 plywood to the outer wall surface is realized, and therefore the outer wall surface (25) on the general floor portion (2) side and the outer wall surface (26) on the split-level (4) side can be disposed in a shifted state as shown in FIG. 4, and openings (27) (27) can be provided near the boundary part (6) of the outer wall surfaces (25) (26).
[0023] It is to be noted that the present invention is not limited to the above embodiment, and it is clear that many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, although the outer peripheral floor beams (3) (3)... of the split-level (4) are located lower than the floor beams (1) (1) of the general floor portion (2), and the bellyband beams (5) (5)... and the transmission beams (10) (10) . are disposed above the outer peripheral floor beams (3) (3)... in the above embodiment, the bellyband beams (5) (5)... may be constructed below the outer peripheral floor beams (3) (3).. so that the transmission beams (10) (10) are interposed between the outer peripheral floor beams (3) (3)... and the bellyband beams (5) (5).., in a case where the outer peripheral floor beams (3) (3).., are located higher than the floor beams (1) (1)....
ADVANTAGEOUS EFFECTS OF INVENTION
[0024] As is clear from the above description, horizontal force applied to the outer peripheral floor beams of the split-level is transmitted through the transmission beams to the bellyband beams disposed at the same height level as the floor beams of the general floor portion, so that the split-level and the general floor portion can be integrally interlocked in the present invention. It is therefore possible to establish a C\J new planning guideline for a split-level structure capable of heightening the degree of C\I freedom in design by reducing restrictions on the building form, since, for example, damage to the boundary part between the general floor portion and the split-level can be prevented without providing a structural plywood as described in conventional guidelines, the outer wall surface on the general floor portion side and the outer wall surface on the split-level side can be disposed in a shifted state, and an opening can be provided near the boundary part [0025] Moreover, by disposing at least one transmission beam on each side of the split-level, horizontal force applied to the outer peripheral floor beam can be transmitted uniformly and efficiently, and highly reliable seismic performance can be demonstrated. [0026] Furthermore, by disposing the transmission beams directly below the bearing wall or disposing the transmission beams around the lacking portion of the bellyband beams generated by forming the opening, the strength can be effectively reinforced
DESCRIPTION OF REFERENCE SIGNS [0027]
1 Floor beam 2 General floor portion Outer peripheral floor beams 4 Split-level Bellyband beams Transmission beams 11 Tenon pipes 16 Bearing wall C\J 20 Opening C\I 21 Lacking portion 22 Opening columns
Claims (6)
- CLAIMS: A split-level structure comprising: a bellyband beam constructed above or below an outer peripheral floor beam of a split-level at the same height level as a floor beam of a general floor portion and transmission beams for transmitting horizontal force from the outer peripheral floor beam to the bellyband beam interposed at key points between the bellyband beam and the outer peripheral floor beam.
- The split-level structure according to claim 1, wherein at least one of the transmission beams is disposed on each side of the split-level.
- The split-level structure according to claim 2, wherein the transmission beams are disposed directly below a bearing wall provided on the bellyband beam.
- The split-level structure according to claim 3, wherein the transmission beams are jo ned to the outer peripheral floor beam and the bellyband beam using a tenon.
- The split-level structure according to claim 4, wherein the bellyband beam is constructed above the outer peripheral beam, a pair of opening columns are erected on the outer peripheral beam at a lacking portion where a part of the bellyband beam is lacking, and the bellyband beam divided by a lack is coupled to the opening columns, so that an opening such as a window or an entrance door is provided between the opening columns.
- 6. The split-level structure according to claim 5, wherein at least one of the transmission beams is disposed on each of both sides of the lacking portion of the bellyband beam. (.0
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/024615 WO2021260800A1 (en) | 2020-06-23 | 2020-06-23 | Split-level structure |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202019865D0 GB202019865D0 (en) | 2021-01-27 |
| GB2604849A true GB2604849A (en) | 2022-09-21 |
| GB2604849A8 GB2604849A8 (en) | 2022-10-12 |
Family
ID=74188965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2019865.1A Withdrawn GB2604849A (en) | 2020-06-23 | 2020-06-23 | Split-level structure |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20220186513A1 (en) |
| AU (1) | AU2020372606A1 (en) |
| GB (1) | GB2604849A (en) |
| WO (1) | WO2021260800A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7712864B2 (en) * | 2021-12-10 | 2025-07-24 | トヨタホーム株式会社 | Split-floor structure and building |
| US20240276672A1 (en) * | 2023-02-15 | 2024-08-15 | Vertiv Corporation | Modular data center system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166289A (en) * | 2001-11-30 | 2003-06-13 | Sekisui House Ltd | Skip floor structure |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2675895A (en) * | 1951-12-15 | 1954-04-20 | Loewenstein Jacob | Framework for multistory structures |
| US3638379A (en) * | 1969-05-20 | 1972-02-01 | Thomas V Williams | Dwelling |
| US4514950A (en) * | 1981-11-27 | 1985-05-07 | Goodson Jr Albert A | Building framing system and method |
| EP1251220A3 (en) * | 2001-04-21 | 2003-09-17 | Marlow & Co. Ltd. | Improvements in and relating to flooring |
| US7665251B1 (en) * | 2004-06-09 | 2010-02-23 | Steven Lang | Structural steel framed houses with gable end frames, intermediate frames, and wall and roof panels having perimeters of C-shaped steel channels |
| US7690167B2 (en) * | 2005-04-28 | 2010-04-06 | Antonic James P | Structural support framing assembly |
| US8505599B2 (en) * | 2008-01-24 | 2013-08-13 | Consolidated Systems, Inc. | Panelization system and method |
| US20110067346A1 (en) * | 2009-09-24 | 2011-03-24 | Weyerhaeuser Nr Company | Prefabritcated framing member support system and methods for installing a prefabricated framing member support system in a construction application |
| US9702147B2 (en) * | 2013-01-07 | 2017-07-11 | Clifford Eugene Babson | Panels for framing and constructing a building structure |
| US9249574B2 (en) * | 2013-08-07 | 2016-02-02 | Edmund MEI | Structural engineered wood rim board for light frame construction |
| US20170030072A1 (en) * | 2015-07-28 | 2017-02-02 | Christian Peter CORSON | System and method for panelized, superinsulated building envelopes |
-
2020
- 2020-06-23 US US17/284,170 patent/US20220186513A1/en not_active Abandoned
- 2020-06-23 WO PCT/JP2020/024615 patent/WO2021260800A1/en not_active Ceased
- 2020-06-23 GB GB2019865.1A patent/GB2604849A/en not_active Withdrawn
- 2020-06-23 AU AU2020372606A patent/AU2020372606A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166289A (en) * | 2001-11-30 | 2003-06-13 | Sekisui House Ltd | Skip floor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2604849A8 (en) | 2022-10-12 |
| GB202019865D0 (en) | 2021-01-27 |
| US20220186513A1 (en) | 2022-06-16 |
| AU2020372606A1 (en) | 2022-01-20 |
| WO2021260800A1 (en) | 2021-12-30 |
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| 789A | Request for publication of translation (sect. 89(a)/1977) |
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| 789A | Request for publication of translation (sect. 89(a)/1977) |
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