RU130335U1 - SEISMIC RESISTANT BUILDING - Google Patents

Abstract

1. An earthquake-resistant building, containing a foundation connected to the ground, a seismically insulated part, including an operated building, erected on a base plate, as well as an elastic system located between them, containing an elastic suspension, characterized in that the elastic suspension is made in the form of at least one steel rope placed on the brackets of the lower racks rigidly connected to the foundation, and the upper racks made on the base plate are supported on a steel rope in the spaces between the lower racks, and the steel rope It ozhet be disposed continuously along the perimeter of the building or in the form of several loops under the building, if the building has a long formu.2. An earthquake-resistant building according to claim 1, characterized in that the elastic suspension is completely or partially immersed in bulk material.

Description

The utility model relates to the field of construction and can be used in earthquake-prone areas for the construction of buildings, structures that are resistant to earthquakes.

Known designs of the foundations of buildings on a pendulum suspension (see Nazin V.V. New earthquake-resistant structures and reinforced concrete mechanisms for seismic isolation of buildings and structures. - M .: Stroyizdat, 1993, pp. 3-9, fig. 1k, l). The building is mounted on a slab that is suspended on rods. The rods are fixed on one side in the protrusions of the foundation, motionlessly connected to the ground, and on the other hand in the said plate.

The disadvantage of such structures is the ineffective protection of buildings from earthquakes.

Known earthquake-resistant building (see the description of patent No. 2129644, publ. 04/27/1999), containing the building itself, the base plate suspended from the foundation on the rods, and an elastic suspension installed between the base plate and the ceiling of the lower floor of the building and made of elastic blocks quasi-zero stiffness placed symmetrically so that the center of mass of the building is located on the vertical axis of symmetry of the placement of elastic blocks, and each elastic block is made of elastic modules and a stiffener installed between them, and each elastic module is made of two vertical struts, and between the struts fixed to each other are cable segments, one ends of which are fixed perpendicular to the strut, rigidly connected to the ceiling of the first floor, and the other ends are fixed, tilted to another strut, rigidly connected to the base plate, the stiffness corrector made of two identical segments of cables, the middle of which are interconnected and attached to the foundation plate, the ends of the cables are separated and fixedly connected through the preload device the overlap of the first floor. The disadvantages of this building design:

- high complexity of manufacturing load-bearing modules and stiffeners;

- low adaptability of installation, which leads to higher construction costs;

- cradle suspension also leads to higher construction costs;

- additional costs for the maintenance and operation of the elastic suspension system;

- the appearance of possible spurious oscillations due to the loss of equidistance of the segments of the cables of the elastic modules;

- there is a likelihood of deterioration of the protective properties with increased snow and wind load.

An earthquake-resistant building is known (see the description of patent No. 109178 for a utility model, publ.), Containing a foundation connected to the ground and a first plate with a metal frame column installed on it, connected to the foundation with a suspension, the building contains a second plate resting on the foundation, facing the brackets carrying steel pipes are rigidly fixed to each other on the surfaces of the first and second plates, and the suspension is made in the form of a steel rope wrapping alternately around these pipes.

The disadvantages of this design:

- deterioration of the protective properties of the elastic suspension at large amplitudes of seismic effects, since the brackets of the supporting structures are relatively close to each other;

- the technological complexity of the alternate pipe wrapping, since the brackets are closed structures.

As can be seen from the above descriptions, the analogs and the prototype contain a base part directly contacting with the soil, a seismically insulated part, including a base plate and an operated building erected on it, the building also contains an elastic system connecting these parts, made in the form of a suspension.

The objective of the utility model is to strengthen protection against earthquakes, improve the manufacturability of manufacturing an elastic system, and reduce construction costs.

The problem is solved in that in an earthquake-resistant building containing a foundation connected to the ground, a seismically insulated part, including an operated building, erected on a base plate, as well as an elastic system located between them, containing an elastic suspension, the elastic suspension is made in the form of a steel rope placed on the brackets of the lower racks, rigidly connected to the foundation, and the upper racks made on the base plate are supported on a steel rope in the spaces between the lower racks, and the steel rope can It is disposed continuously along the perimeter or in several loops under the building, if the building has a long shape.

The elastic suspension of an earthquake-resistant building can be completely or partially immersed in bulk material.

Figure 1 shows the inventive building, front view. Figure 2 shows the inventive building, side view. Figure 3 shows an embodiment of an elastic suspension. Figure 4 shows another embodiment of the elastic suspension. Figure 5 shows a fragment of an elastic suspension. Figure 6 shows the upper and lower racks with brackets and a steel rope placed on them. Figure 7 shows the inventive building in the embodiment when the elastic suspension is immersed in bulk material.

The inventive building contains a seismically insulated part, including the exploited building - the housing 1, erected on a base plate 2, which is equipped with downward-facing posts 3. The inventive building contains a foundation part, consisting of a foundation 4, connected

directly with the ground. Racks 5 are made on the foundation 4. The base part can also be made in another design. For example, racks 5 can be made as piles buried in the ground. The racks 5 are made of brackets 6 (see Fig.6), on which is placed a steel rope 7, forming a closed loop around the perimeter of the building. On the rope 7 in the spaces between the uprights 5 are supported rack 3 through the brackets 8 (see Fig.6). The brackets 6 and 8 are located on two opposite sides of the uprights 3 and 5. The steel cable 7 is placed on the brackets 6 and 8 on both sides of the uprights 3 and 5.

To increase the bearing capacity of the elastic system, the steel rope 7 can be located on racks 5 in several rows.

According to the design, the steel rope 7 can be located continuously around the perimeter of the building (Fig. 3), or in the form of several closed loops under the building, in case the building has an extended shape (Fig. 4).

The foundation 4 can be filled with bulk material 9, which partially or completely hides the rope 7. The filling 9 serves to perceive the building as a snow-wind load, to enhance the bearing capacity of the rope 7, to reduce the amplitude of the building’s vibration during an earthquake. The level of filling with bulk material 9 may vary depending on the level of seismic activity of the area and is calculated depending on the mass of the building, the parameters of the elastic system and the climatic conditions of construction. The quantitative parameters of filling with bulk material are determined by calculation for each of the designed objects, taking into account the geological characteristics of the foundation foundation.

The inventive structure of the building operates as follows. In the absence of seismic effects, the steel rope 7 is at rest, the racks 3 rest on the rope 7 and the bulk material 9. In this case, the bulk material 9 takes up a snow-wind load. At

earthquakes, tremors take over the foundation 4 and racks 5. Steel rope 7, deforming, stores the energy of shocks and works like a filter, avoiding vibrations of building 1. Bulk material 9 during the deformation of the steel rope 7 plays the role of a damper. The advantages of the claimed design:

- increased protection at high levels of seismic impact, since the relative position of the structures of the base part and the seismically insulated part allows you to place steel ropes of greater effective length than in the considered analogues and prototype;

- manufacturability of construction, since all technological operations in the production of this design are carried out using widely accepted techniques and operations in construction, there are no operations requiring the development of specialized equipment or mechanisms.

Claims (2)

1. An earthquake-resistant building, containing a foundation connected to the ground, a seismically insulated part, including an operated building, erected on a base plate, as well as an elastic system located between them, containing an elastic suspension, characterized in that the elastic suspension is made in the form of at least one steel rope placed on the brackets of the lower racks rigidly connected to the foundation, and the upper racks made on the base plate are supported on a steel rope in the spaces between the lower racks, and the steel rope It ozhet be disposed continuously along the perimeter of the building or in the form of several loops under the building, if the building has a long shape. 2. An earthquake-resistant building according to claim 1, characterized in that the elastic suspension is fully or partially immersed in bulk material.

Images