Combined type double-layer corrugated steel plate viscoelastic damping wall

Abstract

The utility model provides a combined type double-layer corrugated steel plate viscoelastic damping wall. The combined type double-layer corrugated steel plate viscoelastic damping wall comprises a single-section corrugated steel plate, a double-layer corrugated steel plate wall body, a lower fixing support, an upper fixing support, steel stand columns at the two ends, triangular angle steel fixing connecting pieces, viscoelastic material filling bodies and high-strength bolts. The double-layer corrugated steel plate wall body is formed by splicing single-layer corrugated steel plates formed by splicing single-section corrugated steel plates end to end along the flanges, and the corrugated steel plates on the front side and the rear side are connected at the lap joint position through high-strength bolts. The upper fixing support and the lower fixing support are tightly attached to the wall body and symmetrically arranged along the center line of the damping wall, the stand columns at the two ends are formed by oppositely splicing angle steel flanges, and the three-corner angle steel fixing connecting pieces are arranged at the four corners of the front side and the rear side of the damping wall and connected with the wall body in a penetrating mode through high-strength bolts. Viscoelastic damping materials are filled in a cavity of the double-layer corrugated steel plate, and holes are formed in the wall body to meet different building function requirements. The energy-dissipation and shock-absorption steel structure has better ductility and energy-dissipation and shock-absorption capacity, and the ultimate bearing capacity and the lateral displacement resistance of a building structure are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy dissipation and shock absorption of engineering structures, in particular to a combined double-layer corrugated steel plate viscoelastic damping wall. Background Art

[0002] With the rapid development of economy, high-rise buildings have sprung up like mushrooms after rain. Under the action of earthquake load, high-rise buildings often have large lateral displacement. Reducing the structural earthquake dynamic response and resisting lateral displacement have become important issues in the seismic design of high-rise structures. Traditional high-rise building structural lateral force resisting components usually adopt reinforced concrete shear walls, steel supports, trusses, cylinder structures, etc. As the height of high-rise buildings continues to increase, when subjected to large earthquake forces, the structure will have large internal forces and lateral displacements. The energy dissipation and shock absorption capacity of traditional lateral force resisting components can no longer meet the design requirements. New structural energy dissipation components have emerged one after another, such as shear dampers, viscous dampers, viscoelastic dampers, ordinary flat steel plate damping walls, single-layer corrugated steel plate damping walls, etc. This horizontal lateral force resisting component has a greater energy dissipation capacity and can significantly reduce the structural seismic response.

[0003] Ordinary flat steel plate damping walls have low out-of-plane stiffness, are prone to out-of-plane buckling, have low ultimate bearing capacity, low lateral stiffness, and low energy dissipation and shock absorption capacity. The method of setting supports and stiffening ribs outside the plane of the steel plate to improve the out-of-plane stiffness has the disadvantages of complex production and processing, inconvenient construction and installation, large space occupation, affecting the use function, and poor economy. Single-layer corrugated steel plate damping walls have the advantages of large out-of-plane stiffness, strong anti-buckling capacity, large anti-lateral stiffness, and good ductility. This double-layer corrugated steel plate viscoelastic damping wall further improves the out-of-plane buckling stiffness of the wall, provides greater damping force after filling with viscoelastic damping materials, has better ductility, anti-buckling capacity and anti-lateral displacement capacity, strong energy dissipation capacity, excellent seismic performance, easy production and installation, and does not affect the use function of the building. Summary of the invention

[0004] The purpose of the utility model is to greatly improve the structural energy dissipation capacity and anti-lateral displacement capacity, reduce the internal force and lateral displacement of the building structure under the action of earthquake, and provide a combined double-layer corrugated steel plate viscoelastic damping wall. The combined double-layer corrugated steel plate viscoelastic damping wall is composed of circulation units of single-section corrugated steel plates connected end to end in the flange extension direction, each circulation unit is a section of corrugated steel plate with a wave height of 50mm, a wavelength of 280mm, and a plate thickness of 4mm. Adjacent circulation units are connected by high-strength bolts. The structure is composed of 10 corrugated steel plate circulation units in front and back.

[0005] In order to achieve the above objectives, the utility model provides a combined double-layer corrugated steel plate viscoelastic damping wall, including a double-layer corrugated steel plate wall, a single-layer wall composed of unit corrugated steel plates connected end to end along the flange, an upper fixed support, a lower fixed support, columns composed of angle steel flanges at both ends, three-sided angle steel fixed connectors and viscoelastic material filling. The upper fixed support and the lower fixed support are symmetrically arranged along the center line of the wall, and are both composed of two corrugated steel plates matching the wall and a support steel plate welded together. The two-layer assembled corrugated steel plate wall is arranged along the center line of the damping wall, the lower end of the double-layer corrugated steel plate wall is installed between the two corrugated steel plates of the lower fixed support, the upper fixed support is installed close to the upper end of the double-layer corrugated steel plate wall along the center line of the wall, the double-layer corrugated steel plate is connected by high-strength bolts evenly arranged at intervals, and the double-layer corrugated steel plate is connected to the upper and lower fixed supports by high-strength bolts. The columns formed by the two ends of the double-layer corrugated steel plate wall and the angle steel flanges are connected by high-strength bolts. The three-sided angle steel fixed connectors are connected to the wall, fixed supports and columns at the four corners of the front and rear walls by high-strength bolts respectively. The cavity of the double-layer corrugated steel plate is filled with viscoelastic damping material.

[0006] Furthermore, the single-section corrugated steel plates are overlapped end to end along the extension direction of the flange, and the single-section corrugated steel plates that are face to face are also overlapped end to end along the extension direction of the flange. High-strength bolts are used to connect the overlapping parts, and the overlapped double-layer corrugated steel plates are symmetrically arranged along the center line of the damping wall.

[0007] Furthermore, the crests and troughs of the lower fixed corrugated steel plate match the wall body, and are arranged symmetrically along the center line of the damping wall close to the wall body, playing a supporting role when the wall body is assembled, and the lower support corrugated steel plate is connected to the wall body through high-strength bolts. The upper fixed support is assembled in the same way and connected to the wall body with high-strength bolts.

[0008] Furthermore, the columns at both ends of the wall are formed by two angle steel flanges spliced ​​back to back, the double-layer corrugated steel plate wall is embedded between the two angle steels, and the columns at both ends are connected to the double-layer corrugated steel plate wall by high-strength bolts.

[0009] Furthermore, in order to improve the integrity and stability of the wall, the four corners on the front and rear sides of the wall are fixed with three-sided angle steel connectors, and the wall body, the columns at both ends and the upper and lower fixed supports are connected into an integral structure through high-strength bolts to work together.

[0010] Furthermore, in order to improve the damping force and energy dissipation capacity of the double-layer corrugated steel plate damping wall, viscoelastic damping materials are filled in the cavity of the double-layer corrugated steel plate of the wall, and high molecular polymer materials are used, including chloroprene rubber, silicone rubber, polyvinyl chloride, etc.

[0011] Furthermore, in order to meet the functional requirements of the building, if door openings or window openings are required, holes can be opened in the wall, and the openings are sealed with corrugated steel plates around them. High-strength bolts are used to connect the sealing steel plates to the double-layer corrugated steel plate wall.

[0012] The utility model provides a combined double-layer corrugated steel plate viscoelastic damping wall that has the advantages of large out-of-plane stiffness, high strength, strong anti-buckling ability and good ductility of the corrugated steel plate, and also has the advantages that the viscoelastic damping wall can provide a large damping force and strong energy dissipation and vibration reduction ability. The combined double-layer corrugated steel plate viscoelastic damping wall is composed of single-section corrugated steel plates, and is simple to produce and process, and convenient to transport and construct. Compared with single-layer corrugated steel plates, it has greater out-of-plane stiffness and anti-lateral stiffness, prevents out-of-plane buckling, reduces lateral displacement, and is filled with viscoelastic damping materials to enhance the damping force and consume more earthquake input energy. The double-layer corrugated steel plate viscoelastic damping wall has a simple structure, and is easy to produce, construct and maintain. The specifications and dimensions of the damping wall can be flexibly adjusted according to the functional requirements of the building, the size of the space, the structural layout, etc. During the actual engineering installation and construction process, a layer of viscoelastic damping material can be set between the double-layer corrugated steel plate viscoelastic damping wall and the frame columns on both sides and the upper and lower frame beams to ensure that the damping wall and the structure work together under the action of an earthquake, with stronger energy absorption capacity and resistance to elastic-plastic deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a plan view of a single section of corrugated steel plate for a combined double-layer corrugated steel plate viscoelastic damping wall of the utility model.

[0014] Figure 2 This is a cross-sectional view of the utility model combined double-layer corrugated steel plate viscoelastic damping wall

[0015] Figure 3 It is the lower fixed support of the utility model combined double-layer corrugated steel plate viscoelastic damping wall

[0016] Figure 4 It is the upper fixed support of the utility model combined double-layer corrugated steel plate viscoelastic damping wall

[0017] Figure 5 The utility model is a composite double-layer corrugated steel plate viscoelastic damping wall with two steel columns at both ends.

[0018] Figure 6 It is a three-side angle steel fixing connector of the utility model combined double-layer corrugated steel plate viscoelastic damping wall.

[0019] Figure 7 This is a three-dimensional structural diagram of the utility model combined double-layer corrugated steel plate viscoelastic damping wall

[0020] Figure 8This is a three-dimensional structural diagram of the utility model of a combined double-layer corrugated steel plate viscoelastic damping wall with openings DETAILED DESCRIPTION

[0021] In order to facilitate the understanding and practical application of engineers and technicians in the same field, the structural features and implementation process of the utility model are further explained below.

[0022] As shown in the figure, the utility model comprises: a single-section corrugated steel plate (1), a double-layer corrugated steel plate wall (2) composed of single-section corrugated steel plates connected end to end, a lower fixed support (3), an upper fixed support (4), steel columns at both ends (5), a three-sided angle steel fixed connector (6), a viscoelastic material filling body (7) and a high-strength bolt (8).

[0023] The specific implementation steps are as follows:

[0024] 1. The length of the double-layer corrugated steel plate damping wall is the distance between the two frame columns of the building structure. The bottom plate of the lower fixed support of the damping wall is cut into a steel plate with a length of the damping wall, a width of 200mm and a thickness of 8mm. The corrugated steel plate of the lower fixed support (3) is 150mm high and 4mm thick. It is symmetrically arranged along the center line of the double-layer corrugated steel plate wall (2) close to the wall body. The distance between the edge of the corrugated steel plate flange and the center line of the wall is 10mm. The corrugated steel plate of the lower fixed support (3) and the bottom plate are welded on one side along the outer side of the wall length direction. When the wall body is spliced ​​and installed, the lower fixed support plays a supporting role for the wall body.

[0025] 2. The single-section corrugated steel plate (1) is used as a circulation unit. The single-section corrugated steel plate is embedded in the lower fixed support (3) from left to right. The crest and trough of the corrugated steel plate of the support match the wall. First, the first single-section corrugated steel plate is embedded in the left end support, and then the other single-section corrugated steel plate is embedded face to face and symmetrically in the lower fixed support. The two single-section corrugated steel plates are matched, and the assembled corrugated steel plates are fixed with diagonal braces to prevent overturning. In this way, the third single-section corrugated steel plate is embedded in the adjacent support in turn, connected end to end with the assembled corrugated steel plate, and the flanges are overlapped with each other. Then the fourth single-section corrugated steel plate is embedded face to face and symmetrically in the lower support, forming a match with the third corrugated steel plate. The adjacent corrugated steel plates are connected end to end, and the flanges are overlapped with each other. High-strength bolts (8) are used to penetrate and fix the overlapping connection parts of the corrugated steel plates, and the bolts are arranged at intervals of 50 mm along the wall height.

[0026] 3. By analogy, the single-section corrugated steel plate is continuously and cyclically arranged in the same manner. The corrugated steel plates on both sides of the wall are arranged symmetrically along the center line of the double-layer corrugated steel plate wall (2), face to face, and adjacent corrugated steel plates are connected end to end, and the flanges overlap each other. High-strength bolts (8) are used to penetrate and fix the overlapping parts of the flanges of the corrugated steel plates until the last section of the corrugated steel plate unit is assembled. During the assembly construction of the corrugated steel plates of the wall unit, diagonal braces should be set for the assembled wall to provide support for the wall and prevent it from overturning.

[0027] 4. In order to enhance the damping force of the double-layer corrugated steel plate damping wall structure and improve the energy dissipation capacity of the structure, a viscoelastic damping material filling body (7) is inserted into the cavity of the double-layer corrugated steel plate of the wall body, and the viscoelastic damping material is tightly bonded to the corrugated steel plate wall body through a rubber and steel plate bonding process. The viscoelastic damping material adopts a special high molecular polymer material, which can be selected from chloroprene rubber, silicone rubber, polyvinyl chloride and the like.

[0028] 5. Use high-strength bolts to connect the corrugated steel plate of the lower fixed support (3) and the double-layer corrugated steel plate wall (2) at the overlapped joint of the unit corrugated steel plates. The crest and trough of the corrugated steel plate of the upper fixed support (4) match the wall body, with a height of 150 mm and a thickness of 4 mm. The upper edge of the corrugated steel plate is flush with the top of the wall and is symmetrically arranged along the center line of the damping wall close to the wall body. Use high-strength bolts to connect the symmetrically arranged upper fixed support (4) corrugated steel plate and the double-layer corrugated steel plate wall (2) at the overlapped joint of the flanges of the unit corrugated plates. The corrugated steel plate of the fixed support is welded to the top plate on the outer side along the length direction of the wall. The specifications and dimensions of the top plate are the same as those of the bottom plate.

[0029] 6. To facilitate the connection between the double-layer corrugated steel plate damping wall and the main structure, steel columns (5) are arranged at both ends of the wall. The columns are made of two angle steel flanges that are back-to-back, and the double-layer corrugated steel plate wall is embedded between the two angle steels. The long side of the angle steel is 60 mm, the short side is 50 mm, and the thickness is 4 mm. The long side of the angle steel and the double-layer corrugated steel plate wall are connected through high-strength bolts. The bolts are arranged at intervals of 50 mm along the height of the wall. The steel columns at both ends of the wall use the same angle steel.

[0030] 7. In order to enhance the integrity and stability of the wall, three-sided angle steel fixing connectors (6) are used at the four corners on the front and rear sides of the wall to connect the double-layer corrugated steel plate wall (2), the steel columns (5) at both ends, the lower fixed support (3), and the upper fixed support (4) through high-strength bolts, so that each component forms a force-bearing whole and works in coordination.

[0031] 8. In order to meet different building function requirements, if door openings or window openings are needed, holes can be opened in the wall. The openings can be sealed with corrugated steel plates around them. The sealing steel plates are connected to the double-layer corrugated steel plate wall with high-strength bolts.

[0032] 9. In the actual engineering installation and construction process, the size of the damping wall can be flexibly adjusted according to the size of the damping wall required in the floor. A layer of viscoelastic damping material can be set between the double-layer corrugated steel plate viscoelastic damping wall and the frame columns on both sides of the structure and the upper and lower frame beams to ensure the flexible connection between the damping wall and the building structure, and the coordinated force under the action of earthquake has stronger energy dissipation capacity and anti-elastic-plastic deformation ability.

[0033] 10. Use high-strength bolts to penetrate the short-side flanges of the steel column angle steel and implant the viscoelastic damping material into the concrete of the frame columns on both sides of the structure to firmly connect the damping wall to the building structure. The bolts are arranged at a spacing of 50mm, and the same method is used to connect the damping wall to the upper and lower frame beams.

[0034] The above-mentioned combined double-layer corrugated steel plate viscoelastic damping wall can utilize the space of the non-load-bearing wall of the building structure, does not affect the use function of the building, is simple to produce and process, convenient to transport and install, has a large ultimate bearing capacity, anti-buckling capacity and anti-lateral displacement capacity, has good ductility and seismic performance, and enhances the damping force by filling viscoelastic damping materials, improves the energy dissipation and shock absorption capacity, controls the dynamic response of the structure under the action of earthquake, and reduces the lateral displacement of the structure to meet the requirements of the specification. The damping wall has a simple structure, is easy to produce, transport, construct, and maintain, and can be flexibly adjusted in size according to the functional requirements of the building, the size of the space, the structural layout, etc.

[0035] The above technical measures are only preferred implementation methods of the present utility model. It is pointed out here that the improvements and changes made thereto on the basis of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A combined double-layer corrugated steel plate viscoelastic damping wall, characterized by: The damping wall comprises a single-section corrugated steel plate (1), a double-layer corrugated steel plate wall (2), a lower fixed support (3), an upper fixed support (4), steel columns at both ends (5), a three-sided angle steel fixed connector (6), a viscoelastic material filling body (7) and high-strength bolts (8). The double-layer corrugated steel plate wall (2) is composed of a single-section corrugated steel plate (1) connected end to end along the flange and a single-layer corrugated steel plate spliced ​​together, and the corrugated steel plates on the front and rear sides are connected at the overlapped joints by high-strength bolts (8).

2. The combined double-layer corrugated steel plate viscoelastic damping wall according to claim 1 is characterized by: The crests and troughs of the corrugated steel plate of the lower fixed support match the wall body, are symmetrically arranged close to the wall body along the center line of the damping wall, and are connected to the wall body with high-strength bolts. The upper fixed support is assembled in the same way.

3. The combined double-layer corrugated steel plate viscoelastic damping wall according to claim 1 is characterized by: Two angle steel flanges are used to form the columns at both ends of the wall body, and the double-layer corrugated steel plate wall body is embedded between the two angle steels. High-strength bolts are used to connect the steel columns to the double-layer corrugated steel plate wall body.

4. The combined double-layer corrugated steel plate viscoelastic damping wall according to claim 1 is characterized by: The four corners on the front and rear sides of the wall are fixed with three-sided angle steel connectors, and the wall body, the columns at both ends and the upper and lower fixed supports are connected into an integral structure through high-strength bolts to work together.

5. The combined double-layer corrugated steel plate viscoelastic damping wall according to claim 1 is characterized by: The viscoelastic damping material is filled in the cavity of the double-layer corrugated steel plate of the wall. The viscoelastic damping material is tightly bonded to the corrugated steel plate wall by using a high molecular polymer material and a rubber and steel plate bonding process.

6. The combined double-layer corrugated steel plate viscoelastic damping wall according to claim 1 is characterized by: Door openings or window openings are opened on the wall to meet the functional requirements of the building. The openings are sealed with corrugated steel plates on all sides, and high-strength bolts are used to connect the sealing steel plates to the double-layer corrugated steel plate wall.

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