CN109235701B - Seismic isolation device for prefabricated shear wall - Google Patents

Abstract

The invention belongs to the field of civil engineering, and relates to a seismic isolation device suitable for low-rise village and town building prefabricated shear wall structures. After production, it is installed on the components, with a wide range of material sources and a simple production process. During the on-site construction, only the laying of the slipping materials in the device and the welding construction of the welding seam are required, and the construction speed is fast and the cost is low. The installation of this kind of seismic isolation device can effectively reduce the seismic energy input of the building structure, improve the seismic fortification level of village buildings, and can meet the needs of energy dissipation and vibration reduction in different intensity areas through the design and layout of different devices. The length is flexible to realize the start-slip control, and the laying position, laying quantity and spacing of the start-slip and limit control device and the sliding device can be flexibly adjusted, so the device has a wide range of applications.

Description

Seismic isolation device for prefabricated shear wall

technical field

The invention belongs to the field of civil engineering, and relates to a seismic isolation device of an assembled shear wall.

Background technique

In recent years, the use of suitable prefabricated building structure systems has become an important development direction to improve the seismic fortification level of village buildings. The advantages of standardized production in prefabricated building factories and on-site mechanized installation can effectively avoid the low quality of labor in villages and towns, and the randomness of material selection and construction. adverse effects, etc. Lightweight aggregate fabricated shear walls, sandwich composite shear walls, and other fabricated shear wall structures with integrated features of seismic resistance and energy saving account for an increasing proportion of the structural forms of villages and towns.

The current seismic isolation technology is mainly used in public buildings in high seismic intensity areas, and its installation is relatively complex and expensive, which is not friendly to the economic affordability of villages and towns. Therefore, in order to solve the seismic fortification problem of low-rise village buildings in high seismic intensity areas, combined with the characteristics of prefabricated buildings, it is necessary to propose a prefabricated shear wall isolation device with convenient materials, simple process and low cost. The seismic performance of shear wall structures is suitable for areas with different intensity.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a seismic isolation device for an assembled shear wall, which can reduce the impact of seismic energy on the assembled shear wall through the setting of the start-up and limit control devices and the sliding device, and through its own destruction and energy consumption. The damage degree formed by the overall structure of the force wall improves the assembly of the overall structure, reduces the structural complexity, and controls the cost.

To achieve the above object, the present invention provides the following technical solutions:

A seismic isolation device for an assembled shear wall, the assembled shear wall includes a wall foundation and a shear wall installed on the wall foundation, including a start-slip and limit control device and a sliding device; the start-slip And the limit control device includes a first metal plate arranged on the opposite side of the wall foundation and the shear wall, and a first metal plate arranged on the opposite side of the shear wall and the wall foundation at a position matching the first metal plate. A second metal plate, the first metal plate and the second metal plate are fixedly connected, the first metal plate is provided with a via hole, and the positioning structure is fixed on the second metal plate through the via hole; the sliding The device includes a first flat plate arranged on the side opposite to the wall foundation and the shear wall, and a second flat plate arranged on the opposite side of the shear wall and the wall foundation at a position matching the first flat plate; the A sliding material is laid between the first flat plate and the second flat plate; one or more start-slip and limit control devices and/or one or more sliding devices are arranged between the shear wall and the wall foundation.

Optionally, the side of the first metal plate away from the second metal plate and the side of the second metal plate away from the first metal plate are provided with shear-resistant structures.

Optionally, a single start-slip and limit control device includes four anti-shear structures, which are respectively arranged at both ends of the first metal plate and the second metal plate.

Optionally, a side of the first flat plate away from the second flat plate and a side of the second flat plate away from the first flat plate are provided with shear-resistant structures.

Optionally, a single sliding device includes four anti-shear structures, which are respectively arranged on both ends of the first flat plate and the second flat plate.

Optionally, the shear-resistant structure is a shear-resistant angle steel.

Optionally, a welding seam is used for fixed connection between the first metal plate and the second metal plate.

Optionally, the positioning structure is a short rib fixedly arranged on the second metal plate or a bolt arranged between the second metal plate and the first metal plate.

Optionally, the slip material is graphite powder or glass beads.

Optionally, two start-slip and limit control devices and one sliding device are arranged between the shear wall and the wall foundation. Between the two start-slip and limit control devices.

The beneficial effects of the present invention are:

Compared with the traditional seismic isolation technology, the cost of the present invention is lower, and the standardized production in the factory can be realized. The seismic isolation device is installed on the component after the standardized production in the factory. The laying of materials and the welding construction of welding seams are fast in construction and low in cost. The installation of this kind of seismic isolation device can effectively reduce the seismic energy input of the building structure, improve the seismic fortification level of village buildings, and can meet the needs of energy dissipation and vibration reduction in different intensity areas through the design and layout of different devices. The length is flexible to realize the start-slip control, and the laying position, laying quantity and spacing of the start-slip and limit control device and the sliding device can be flexibly adjusted, so the device has a wide range of applications.

Other advantages, objects, and features of the present invention will be set forth in the description that follows, and will be apparent to those skilled in the art based on a study of the following, to the extent that is taught in the practice of the present invention. The objectives and other advantages of the present invention may be realized and attained by the following description.

Description of drawings

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be preferably described in detail below with reference to the accompanying drawings, wherein:

1 is a schematic diagram of the overall structure of a seismic isolation device for a prefabricated shear wall involved in the present invention;

Figure 2 is a schematic structural diagram of a start-slip and limit control device;

Figure 3 is a top view of the start-slip and limit control device;

Figure 4 is a bottom view of the start-slip and limit control device;

5 is a schematic structural diagram of a sliding device;

6 is a top view of the sliding device;

Fig. 7 is a bottom view of the sliding device.

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic idea of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

Among them, the accompanying drawings are only used for exemplary description, and represent only schematic diagrams, not physical drawings, and should not be construed as limitations of the present invention; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, The enlargement or reduction does not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms “upper”, “lower”, “left” and “right” , "front", "rear" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must be It has a specific orientation, is constructed and operated in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation of the present invention. situation to understand the specific meaning of the above terms.

Please refer to Fig. 1-Fig. 7, the component numbers in the drawings respectively represent: shear structure 1, first metal plate 2, welding seam 3, via hole 4, positioning structure 5, slip material 6, shear wall 7, Wall foundation 8 , second metal plate 9 , first flat plate 10 , second flat plate 11 .

The invention relates to a seismic isolation device for an assembled shear wall. The assembled shear wall includes a wall foundation 8 and a shear wall 7 installed on the wall foundation 8, including a start-sliding and limit control device and a sliding The device; the sliding and limit control device includes the first metal plate 2 arranged on the opposite side of the wall foundation 8 and the shear wall 7, and the first metal plate 2 arranged on the opposite side of the shear wall 7 and the wall foundation 8 A second metal plate 9 at a position matching the first metal plate 2, the first metal plate 2 and the second metal plate 9 are fixedly connected, and the first metal plate 2 is provided with a via hole 4, The positioning structure 5 is fixed on the second metal plate 9 through the through hole 4; the sliding device includes a first flat plate 10 arranged on the opposite side of the wall foundation 8 and the shear wall 7, and a first plate 10 arranged on the shear wall 7 The second flat plate 11 on the side opposite to the wall foundation 8 at the position matching the first flat plate 10; the sliding material 6 is laid between the first flat plate 10 and the second flat plate 11; the shear wall 7 One or more start and limit control devices and/or one or more sliding devices are arranged between the wall foundation 8 and the wall foundation 8 .

Preferably, the side of the first metal plate 2 away from the second metal plate 9 and the side of the second metal plate 9 away from the first metal plate 2 are provided with a shear-resistant structure 1; The limit control device includes four anti-shear structures 1, which are respectively arranged at both ends of the first metal plate 2 and the second metal plate 9; the first plate 10 is on the side away from the second plate 11, and the second plate 11 A shear-resistant structure 1 is provided on the side away from the first flat plate 10; a single sliding device includes four shear-resistant structures 1, which are respectively arranged at both ends of the first flat plate 10 and the second flat plate 11; the shear-resistant structure 1 is a shear angle steel; the first metal plate 2 and the second metal plate 9 are fixedly connected by a welding seam 3; the positioning structure 5 is a short rib fixed on the second metal plate 9 or a Bolts between the second metal plate 9 and the first metal plate 2; the sliding material 6 is graphite powder or glass beads; between the shear wall 7 and the wall foundation 8, there are 2 start-slip and limit control The device and a sliding device, the start-slip and limit control devices are respectively arranged on both sides along the direction of the wall, and the sliding device is arranged between the two start-slip and limit control devices.

The seismic isolation device is mainly installed on the outdoor floor of the assembled shear wall structure in villages and towns. The two ends are fixed and flush by the first metal plate 2 and the second metal plate 9 with the upper surface of the wall foundation 8 and the lower surface of the shear wall 7 respectively, and the first metal plate 2 and the second metal plate 9 are welded by welding Seam 3 is connected, a hole 4 is dug out in the middle of the first metal plate 2, the size of the through hole 4 is 2 times of the limit distance, the second metal plate 9 is welded with short steel bars or small bolts are set as the positioning structure 5, so that the second metal plate 9 is The positioning structure 5 of the It is a steel plate, which is fixed and flush with the upper surface of the wall foundation 8 and the lower surface of the shear wall 7 respectively. Materials with small friction coefficients such as graphite powder and glass fine slag are laid between the first flat plate 10 and the second flat plate 11 .

The working principle of the seismic isolation device is as follows: under the action of small earthquake, the welding seam 3 of the start-slip and limit control device will not be damaged, and the structure relies on its own earthquake resistance; under the action of medium and large earthquakes, the welding seam 3 of the start-slip and limit control device will occur Through failure, the shear wall 7 and the wall foundation 8 rely on the sliding device to slide relative to each other. The purpose of energy consumption is achieved through the destruction of the welding seam 3 and the small-scale sliding of the wall. Prevent structural damage caused by excessive displacement.

Compared with the traditional shear wall seismic isolation technology, the cost of the invention is lower than that of the traditional shear wall seismic isolation technology, and the standardized production in the factory can be realized. The seismic isolation device can also be installed on the components after the standardized production in the factory. The laying of the slipping material 6 and the welding construction of the welding seam 3 are carried out, and the construction speed is fast and the cost is low. The setting of this kind of seismic isolation device can greatly improve the energy dissipation capacity and seismic performance of the prefabricated shear wall, and different building layouts can be carried out according to different intensity areas. The laying position, laying quantity and spacing of the start-slip and limit control device and the sliding device can be adjusted flexibly, so the device has wide application.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements, without departing from the spirit and scope of the technical solution, should all be included in the scope of the claims of the present invention.

Claims (5)

1. The utility model provides a seismic isolation device of assembled shear force wall, assembled shear force wall includes the wall foundation and installs the shear force wall on the wall foundation, its characterized in that: comprises a sliding starting and limiting control device and a sliding device;

the sliding and limiting control device comprises a first metal plate arranged on one side, opposite to the shear wall, of the wall foundation and a second metal plate arranged on one side, opposite to the wall foundation, of the shear wall and matched with the first metal plate, the first metal plate and the second metal plate are fixedly connected, a through hole is formed in the first metal plate, and the positioning structure penetrates through the through hole and is fixed on the second metal plate;

the sliding device comprises a first flat plate arranged on one side, opposite to the shear wall, of the wall foundation and a second flat plate arranged on one side, opposite to the wall foundation, of the shear wall and matched with the first flat plate; a sliding material is laid between the first flat plate and the second flat plate;

shear resistant structures are arranged on one side of the first metal plate, which is far away from the second metal plate, and on one side of the second metal plate, which is far away from the first metal plate;

the single sliding and limiting control device comprises four shear resistant structures which are respectively arranged at two ends of the first metal plate and the second metal plate;

shear resistant structures are arranged on one side of the first flat plate, which is far away from the second flat plate, and on one side of the second flat plate, which is far away from the first flat plate;

the single sliding device comprises four shear-resistant structures which are respectively arranged at two ends of the first flat plate and the second flat plate;

2 open and slide and limit control device and 1 slider are equipped with between shear force wall and the wall foundation, open slide and limit control device and establish respectively in the both sides along the wall direction, and slider sets up two and opens between slide and the limit control device.

2. A seismic isolation system as claimed in claim 1 wherein: the shear-resistant structure is shear-resistant angle steel.

3. A seismic isolation system as claimed in claim 1 wherein: and the first metal plate and the second metal plate are fixedly connected by adopting a welding line.

4. A seismic isolation system as claimed in claim 1 wherein: the positioning structure is a short rib fixedly arranged on the second metal plate or a bolt arranged between the second metal plate and the first metal plate.

5. A seismic isolation system as claimed in claim 1 wherein: the sliding material is graphite powder or glass beads.

Images