Recycled concrete interlayer-corrugated steel plate composite shear wall with recoverable functions

Abstract

The invention discloses a recycled concrete interlayer-corrugated steel plate composite shear wall with recoverable functions. The anti-seismic property of the steel plate-concrete composite shear wall can be improved, but the steel plate-concrete composite shear wall is prone to local buckling or large deformation under the action of large horizontal loads. Frame columns are vertically arranged on a foundation; shear walls are arranged between the frame columns; a self-resetting device and a friction energy consumption device are arranged between the bottom of the shear wall and the foundation; the self-resetting devices are arranged at the bottom of the shear wall and on the two sides of the friction energy dissipation device. The foundation and the frame columns are fixed through column foot connecting pieces, and a lower end plate is arranged in the center of the foundation. Energy is dissipated through deformation of the disc spring, self-resetting is achieved through the self-resetting device after an earthquake, and residual deformation after the earthquake can be reduced; the energy dissipation beam section generates shear deformation due to the displacement difference between the shear wall and the frame column, the beam section dissipates energy through friction and pulls the SMA stranded wires to deform, and structural deformation is restored through elastic restoring force of the SMA stranded wires after an earthquake.

Description

Technical Field

[0001] The invention belongs to the technical field of earthquake-resistant structures, and in particular relates to a functionally recoverable recycled concrete sandwich-corrugated steel plate combined shear wall. Background Art

[0002] Traditional earthquake-resistant thinking focuses on the anti-collapse design of structures. However, with the rapid development of social economy, recoverable functional structures have gradually become a new concept of earthquake-resistant design, that is, after suffering an earthquake, the structure does not need to be repaired or can be used normally with only a little repair. The recoverable functional structure has good recoverable deformation capacity and energy dissipation capacity, and is a structure with good earthquake toughness. Compared with traditional earthquake-resistant structures, the outstanding advantage of the recoverable functional structure is that its residual deformation after the earthquake is small or even zero, which makes the structural earthquake damage small, thereby achieving the goal of rapid recovery of post-earthquake functions, which is of great significance for enhancing the structure's ability to resist earthquakes.

[0003] When traditional shear walls are subjected to earthquakes, bending shear failure and shear failure are prone to occur at the bottom of the shear walls. These two types of failure cause serious damage to both sides of the bottom of the shear walls, large residual deformation, and difficulty in repair, resulting in their inability to perform their normal functions, causing serious impact on people's normal production activities.

[0004] The use of steel plate-concrete composite shear walls can effectively increase the bearing capacity of the shear wall and improve its seismic performance. This type of shear wall has the advantages of high bearing capacity and good ductility, but it is prone to local buckling or large deformation under the action of large horizontal loads, resulting in the strength and ductility of the steel not being able to play a good role. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, the present invention provides a functionally recoverable recycled concrete sandwich-corrugated steel plate composite shear wall, which solves the energy consumption problem existing in the prior art and the rapid recovery after an earthquake.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall comprises a foundation, two frame columns are vertically arranged on the foundation; a multi-layer shear wall is arranged between the two frame columns;

[0008] A self-resetting device and a friction energy dissipation device are arranged between the bottom of the shear wall and the foundation.

[0009] Furthermore, the foundation and the frame column are fixed by means of a column foot connector, and a lower end plate is provided at the center of the foundation.

[0010] Furthermore, the shear wall includes a left steel plate and a right steel plate; the inner front corrugated steel plate and the inner rear corrugated steel plate are inserted along the longitudinal locking grooves on the left steel plate and the right steel plate; the inner front corrugated steel plate and the inner rear corrugated steel plate have a plurality of channel steels and channel steels of the same size at the same height, and the channel steels and channel steels are tied with a plurality of U-shaped railings; the outer front corrugated steel plate and the outer rear corrugated steel plate are arranged at the front and rear positions of the inner front corrugated steel plate and the inner rear corrugated steel plate respectively; the outer front corrugated steel plate and the outer rear corrugated steel plate The left and right sides are in close contact with the long strip plates protruding from the left steel plate and the right steel plate respectively, and the positions of the holes left are overlapped, and the holes are connected with bolts; concrete is poured between the outer front corrugated steel plate and the inner front corrugated steel plate and between the inner rear corrugated steel plate and the outer rear corrugated steel plate; concrete is poured between the inner front corrugated steel plate and the inner rear corrugated steel plate; a lower steel plate is arranged at the lower part of the shear wall, a beam is arranged at the top, and the lower steel plate is placed in the concave hole on the upper part of the beam. The corresponding hole positions are overlapped and connected with screws to realize the connection between the upper and lower layers.

[0011] Furthermore, the friction energy dissipation device includes a rubber block, the upper surface of which is in close contact with the upper end plate, and the lower surface of which is in close contact with the lower end plate; the front friction plate and the rear friction plate are arranged in front and rear positions of the upper end plate and the lower end plate and are in close contact; the bolt holes on the front friction plate and the rear friction plate coincide with the positions of the slot-shaped long holes on the upper end plate and the lower end plate; the front cover plate and the rear cover plate are arranged in front and rear positions of the front friction plate and the rear friction plate and are in close contact, and the bolt holes on the front cover plate and the rear cover plate coincide with the bolt holes on the front friction plate and the rear friction plate respectively.

[0012] Furthermore, the self-resetting device is arranged at the bottom of the shear wall and on both sides of the friction energy dissipation device.

[0013] Furthermore, the self-resetting device comprises an upper end plate and a lower end plate, the upper end plate is connected to the shear wall, and the lower end plate is connected to the foundation; the lower end plate is connected in sequence to the lower pressure pad and the lower high-strength stress pad, which are welded in pairs; the diameter of the cone core is the same as the diameter of the hole in the disc spring sheet, the disc spring group is composed of disc spring sheets, the cone core passes through a pair of disc spring groups, and the upper high-strength stress pad and the lower high-strength stress pad have holes with the same diameter as the cone core on the left and right sides, the lower end of the cone core passes through the hole of the lower high-strength stress pad and is in close contact with the lower pressure pad, and the upper end of the cone core passes through the hole of the upper high-strength stress pad; prestressed SMA strands The wire is arranged between the two disc spring groups, and holes of the same size are left between the upper high-strength stress gasket and the lower high-strength stress gasket. A prestressed SMA stranded wire passes through the holes and is fixed; the outer sleeve is arranged on the upper high-strength stress gasket and the lower high-strength stress gasket, and is welded to the lower high-strength stress gasket; the inheritance shaft is arranged at the hole position of the upper high-strength stress gasket, the hole diameter of the inheritance shaft is larger than the hole diameter of the upper high-strength stress gasket, and the height of the inheritance shaft is larger than the height of the cone core protruding from the upper high-strength stress gasket, the upper high-strength stress gasket and the inheritance shaft are connected by welding, the cone core passes through the inheritance shaft, and the upper part of the inheritance shaft is tightly connected and welded to the upper end plate.

[0014] Furthermore, the holes on the lower end plate of the self-resetting device are in close contact with and overlap with the holes on the foundation, the holes on the upper end plate of the self-resetting device are in close contact with and overlap with the holes on the lower steel plate, and the holes are connected by bolts.

[0015] Furthermore, an energy-absorbing beam section is arranged between the beam and the frame column; the energy-absorbing beam section includes an inner shear plate, an outer shear plate, a front friction plate, a rear friction plate, a front cover plate, a rear cover plate, and an SMA stranded wire; the front friction plate and the rear friction plate are respectively arranged in the front and rear directions of the inner shear plate and are closely contacted and connected; the front cover plate and the rear cover plate are respectively arranged in the front and rear directions of the front friction plate and the rear friction plate and are closely contacted with the front friction plate and the rear friction plate, and the bolt holes of the front cover plate and the rear cover plate coincide with the bolt holes on the front friction plate and the rear friction plate; high-strength bolts are used to pass through the bolt holes and elliptical bolt holes on the front cover plate, the rear cover plate, the front friction plate, the rear friction plate and the inner shear plate to connect; the outer shear plate is arranged on the upper and lower sides of the front cover plate and the rear cover plate, and the upper and lower surfaces of the front cover plate and the rear cover plate are connected to the outer The shear plates are in close contact, and the upper, lower and right sides of the front cover plate and the rear cover plate extend out ear plates and ear plates respectively, and are in close contact with the outer shear plate. The positions of the openings on the ear plates of the front cover plate and the ear plates of the rear cover plate coincide with the positions of the openings of the outer shear plate, and the front cover plate, the rear cover plate and the outer shear plate are fixed together by bolts; the SMA stranded wire is put on the short column of the inner shear plate and the SMA stranded wire is passed through the holes of the ear plates of the front cover plate, the holes of the ear plates of the rear cover plate and the upper and lower holes of the outer shear plate, and anchored at the end of the SMA stranded wire, and the anchoring end is arranged on the outer shear plate; the embedded bolts on the frame column pass through the holes of the inner shear plate on the energy-absorbing beam section to connect the energy-absorbing beam section and the frame column, and the holes on the right side of the outer shear plate on the energy-absorbing beam section pass through the embedded bolts on the beam to connect the energy-absorbing beam section and the beam.

[0016] Furthermore, the friction plate in the friction energy dissipation device is a brass plate.

[0017] Furthermore, the butterfly spring assembly needs to be pre-stressed in advance, the butterfly spring leaves are conical, and are arranged in overlapping and matching positions.

[0018] Beneficial effects of the present invention:

[0019] 1) The shear wall of the present invention can dissipate energy through the deformation of the disc spring, and after the earthquake, the disc spring and SMA strand in the self-resetting device can achieve self-resetting, which can effectively reduce the residual deformation after the earthquake; the energy-absorbing beam section produces shear deformation due to the displacement difference between the shear wall and the frame column, and the beam section dissipates energy through friction and pulls the SMA strand to deform. After the earthquake, the elastic restoring force of the SMA strand restores the structural deformation;

[0020] 2) The shear wall of the present invention also has high bearing capacity, large anti-lateral displacement stiffness and good ductility; the friction plate in the friction energy dissipation device is made of brass plate, which can increase the friction coefficient and effectively dissipate earthquake energy;

[0021] 3) The present invention adopts an assembled type, and the components can be prefabricated in advance and assembled on site, which greatly reduces the complexity of construction, can effectively speed up the construction progress and shorten the construction period;

[0022] 4) The combined shear wall of the present invention has a light deadweight, small residual deformation after an earthquake, and is easy to repair and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a functionally recoverable recycled concrete sandwich-corrugated steel plate combined shear wall of the present invention;

[0024] Figure 2 is a three-dimensional diagram of a column base connector;

[0025] Figure 3 As a basic stereogram;

[0026] Figure 4 This is a three-dimensional diagram of the shear wall;

[0027] Figure 5 is a three-dimensional diagram of the beam;

[0028] Figure 6 This is the top view of the shear wall;

[0029] Figure 7 It is the explosion diagram of the friction energy dissipation device;

[0030] Figure 8 is a cross-sectional view of a self-resetting device;

[0031] Fig. 9 It is the explosion diagram of the energy dissipation beam section;

[0032] Fig.10 This is the explosion diagram of the shear plate and friction plate of the beam segment;

[0033] Fig.11 This is a schematic diagram of the connection between the shear plate and the friction plate of the beam segment;

[0034] Among them, 1 is the frame column, 101 is the embedded bolt on the frame column, 2 is the foundation, 201 is the lower end plate, 3 is the shear wall, 301 is the left steel plate, 3011 is the longitudinal locking groove, 302 is the right steel plate, 3021 is the longitudinal locking groove, 303 is the beam, 3031 is the transverse locking groove, 3032 is the embedded bolt on the beam, 304 is the lower steel plate, 3041 is the transverse locking groove, 3042 is the upper end plate, 3043 is a transverse locking groove, 305 is an outer front corrugated steel plate, 306 is an inner front corrugated plate, 3061 is an inner front corrugated plate channel steel, 307 is an inner rear corrugated plate, 3071 is an inner rear corrugated plate channel steel, 308 is an outer rear corrugated plate, 309 is a U-shaped pull rod, 4 is a friction energy dissipation device, 401 is a front friction plate, 402 is a rear friction plate, 403 is a front cover plate, 404 is a rear cover plate, 405 is a rubber block, 5 is a self-resetting device, 501 is an upper end plate, 502 is a lower end plate, 503 is a lower pressure pad, 504 is a lower high-strength stress pad, 505 is an upper high-strength stress pad, 506 is a disc spring group, 507 is a cone core, 508 is an SMA strand, 509 is a heritage shaft, 510 is an outer sleeve, 6 is an energy-absorbing beam section, 601 is an inner shear plate, 6011 is an inner shear plate hole, 602 6021 is the upper and lower side holes of the outer shear plate, 6022 is the right side hole of the outer shear plate, 603 is the front friction plate, 604 is the rear friction plate, 605 is the front cover plate, 6051 is the front cover plate ear plate hole, 6052 is the front cover plate ear plate, 606 is the rear cover plate, 6061 is the rear cover plate ear plate hole, 6062 is the rear cover plate ear plate, 607 is the SMA stranded wire, and 7 is the column foot connector. DETAILED DESCRIPTION

[0035] The present invention is described in detail below in conjunction with specific implementation modes.

[0036] like Figure 1 As shown, the present invention comprises a foundation 2, on which two frame columns 1 are vertically arranged; a multi-layer shear wall 3 is arranged between the two frame columns 1;

[0037] A self-resetting device 5 and a friction energy dissipation device 4 are provided between the bottom of the shear wall 3 and the foundation 2 . The foundation 2 and the frame column 1 are fixed via a column foot connector 7 . A lower end plate 201 is provided at the center of the foundation 2 .

[0038] like Figure 2 , 3As shown, concrete is poured into the frame column 1; rectangular recesses are left at the left and right ends of the foundation 2, and holes are left on the left and right sides of the rectangular recesses, and the size of the rectangular recesses is the same as the cross-sectional size of the frame column 1; the cross-sectional size of the recess on the column foot connector 7 is the same as the cross-sectional size of the frame column 1, the column foot connector 7 is placed on the rectangular recess, the position of the hole on the column foot connector 7 coincides with the position of the holes left on the left and right sides of the rectangular recess, and the holes are connected with bolts; two frame columns 1 are placed in the left and right rectangular recesses of the foundation 2, the bottom surface of the frame column 1 is in close contact with the bottom surface of the rectangular recess, holes are left on the side of the frame column 1, the position of the holes coincides with the position of the holes on the side of the column foot connector 7, and the holes are connected with bolts.

[0039] like Figure 4-Figure 6 As shown, the shear wall 3 includes a left steel plate 301 and a right steel plate 302; the inner front corrugated steel plate 306 and the inner rear corrugated steel plate 307 are inserted along the longitudinal locking groove 3011 on the left steel plate 301 and the longitudinal locking groove 3021 on the right steel plate 302; the inner front corrugated steel plate 306 and the inner rear corrugated steel plate 307 have a plurality of channel steels 3061 and channel steels 3071 of the same size at the same height, and the channel steels 3061 and channel steels 3071 are tied together by a plurality of U-shaped railings 309;

[0040] The outer front corrugated steel plate 305 and the outer rear corrugated steel plate 308 are arranged in front and rear positions of the inner front corrugated steel plate 306 and the inner rear corrugated steel plate 307 respectively; the left and right sides of the outer front corrugated steel plate 305 and the outer rear corrugated steel plate 308 are in close contact with the long strip plates protruding from the left steel plate 301 and the right steel plate 302 respectively, and the positions of the holes left are overlapped, and the holes are connected by bolts; concrete is poured between the outer front corrugated steel plate 305 and the inner front corrugated steel plate 306 and the inner rear corrugated steel plate 307 and the outer rear corrugated steel plate 308; concrete is poured between the inner front corrugated steel plate 306 and the inner rear corrugated steel plate 307;

[0041] A lower steel plate 304 is arranged at the lower part of the shear wall 3, and a beam 303 is arranged at the top. The lower steel plate 304 is placed in the concave hole at the upper part of the beam 303. The corresponding hole positions overlap and are connected by screws to realize the connection between the upper and lower layers.

[0042] The beam 303 and the lower steel plate 304 are arranged on the upper and lower sides of the inner front corrugated steel plate 306 and the inner rear corrugated steel plate 307 and are in close contact with each other. The transverse locking groove 3031 on the beam 303 and the transverse locking groove 3041 and the transverse locking groove 3043 on the lower steel plate 304 are closely attached to the inner front corrugated steel plate 306 and the inner rear corrugated steel plate 307 and overlap with the position where holes are left. The holes are connected by screws.

[0043] The shear wall is assembled from corrugated steel plates, has a light weight, is easy to construct, and is conducive to shortening the construction period. Under the action of horizontal and vertical loads, it has high bearing capacity, large lateral stiffness, and good ductility and seismic performance. The corrugated steel plate has a large out-of-plane stiffness, which can greatly increase the elastic buckling load of the wall panel under the action of horizontal loads, making the wall panel less likely to buckle under earthquakes.

[0044] The middle concrete of shear wall 3 is cast with recycled concrete. On the one hand, by processing a large amount of waste concrete as recycled aggregate instead of natural aggregate, the consumption of natural aggregate in the construction industry can be effectively reduced. On the other hand, the development and application of recycled aggregate concrete solves the increasing shortage of natural aggregate and the deterioration of the ecological environment caused by waste concrete, which is conducive to the sustainable development of society.

[0045] Corrugated steel plates and recycled concrete are applied to shear wall structures, and combined with SMA strands and springs to form a functionally recoverable recycled concrete sandwich-corrugated steel plate composite shear wall. Compared with other shear walls, the recycled concrete sandwich-corrugated steel plate composite shear wall not only has seismic resistance and high lateral stiffness, but also has small residual deformation after earthquake, less structural damage, and self-reset ability, which can achieve post-earthquake functional recovery.

[0046] like Figure 7 As shown, the friction energy dissipation device 4 includes a rubber block 405, the upper surface of the rubber block 405 is in close contact with the upper end plate 3042, and the lower surface is in close contact with the lower end plate 201;

[0047] The front friction plate 401 and the rear friction plate 402 are arranged in front and rear positions of the upper end plate 3042 and the lower end plate 201 and are in close contact; the bolt holes on the front friction plate 401 and the rear friction plate 402 coincide with the positions of the slot-shaped long holes on the upper end plate 3042 and the lower end plate 201; the front cover plate 403 and the rear cover plate 404 are arranged in front and rear positions of the front friction plate 401 and the rear friction plate 402 and are in close contact, and the bolt holes on the front cover plate 403 and the rear cover plate 404 coincide with the bolt holes on the front friction plate 401 and the rear friction plate 402 respectively; the friction plate in the friction energy dissipation device is a brass plate.

[0048] The upper end plate 3042 and the lower end plate 201, the front friction plate 401 and the rear friction plate 402, and the front cover plate 403 and the rear cover plate 404 are connected by high-strength bolts. During the rotation process, the structure can generate vertical tensile and compressive deformation to effectively dissipate the energy of the earthquake; the friction plate is a brass plate, and its energy dissipation capacity is relatively stable.

[0049] like Figure 8As shown, the self-resetting device 5 is arranged at the bottom of the shear wall 3 and on both sides of the friction energy dissipation device 4. The self-resetting device 5 includes an upper end plate 501 and a lower end plate 502, the upper end plate 501 is connected to the shear wall 3, and the lower end plate 502 is connected to the foundation 2; the lower end plate 502 is connected in sequence with a downward pressure pad 503 and a lower high-strength stress pad 504, and the two are welded; the diameter of the cone core 507 is the same as the diameter of the hole left in the disc spring sheet, and the disc spring group 506 is composed of disc spring sheets. The cone core 507 passes through a pair of disc spring groups 506, and the upper high-strength stress pad 505 and the lower high-strength stress pad 504 have holes with the same diameter as the cone core 507 on the left and right sides. The lower end of the cone core 507 passes through the hole of the lower high-strength stress pad 504 and is in close contact with the downward pressure pad 503, and the upper end of the cone core 507 passes through the hole of the upper high-strength stress pad 505. The assembly method of the other pair of cone cores 507 and the disc spring group 506 is the same; prestressed The prestressed SMA strand 508 is arranged between the two disc spring groups 506, and a hole of the same size is left between the upper high-strength stress gasket 505 and the lower high-strength stress gasket 504, and a prestressed SMA strand 508 passes through the holes and is fixed; the outer sleeve 510 is arranged on the upper high-strength stress gasket 505 and the lower high-strength stress gasket 504, and is welded to the lower high-strength stress gasket 504; the inheritance shaft 509 is arranged at the hole position of the upper high-strength stress gasket 505, the hole diameter of the inheritance shaft 509 is larger than the hole diameter of the upper high-strength stress gasket 505, and the height of the inheritance shaft 509 is larger than the height of the cone core 507 protruding from the upper high-strength stress gasket 505, so that there is a compression space between the two, and the two are connected by welding, the cone core 507 passes through the inheritance shaft 509, and the upper part of the inheritance shaft 509 is tightly connected and welded to the upper end plate 501.

[0050] The holes on the lower end plate 502 of the self-resetting device 5 are in close contact with and overlap with the holes on the foundation 2, and the holes on the upper end plate 501 of the self-resetting device 5 are in close contact with and overlap with the holes on the lower steel plate 304, and the holes are connected by bolts.

[0051] Under the action of horizontal load, the structure slides up and down. After the self-resetting device 5 on one side is subjected to load, due to the presence of a certain compression space between the inheritance shaft 509 and the cone core 507, the disc spring group 506 will be deformed due to the downward sliding of the inheritance shaft 509, consuming energy, and the SMA strands 508 on this side are compressed and have no effect, while the SMA strands 508 in the self-resetting device 5 on the other side are pulled, which will generate a certain tension to offset part of the load; after the earthquake, when the load disappears, the disc spring group 506 in the self-resetting device 5 on one side will generate a restoring force after deformation, thereby restoring the structure to its original direction, and the SMA strands 508 on the other side will also play a pulling role, restoring the structure to its position before deformation. The self-resetting device 5 can greatly reduce the residual deformation of the structure, reduce the loss of the structure, and is easy to replace and maintain. The butterfly spring assembly 506 needs to be pre-stressed in advance. The butterfly spring piece is conical and is arranged in a stacked and matched manner. It is suitable for situations where the axial space is small and the load is large. The SMA stranded wire 508 should also be pre-tensioned in advance.

[0052] like Fig. 9 , Fig.10 as well as Fig.11 As shown, an energy-absorbing beam section 6 is arranged between the beam 303 and the frame column 1; the energy-absorbing beam section 6 includes an inner shear plate 601, an outer shear plate 602, a front friction plate 603, a rear friction plate 604, a front cover plate 605, a rear cover plate 606, and an SMA stranded wire 607;

[0053] The front friction plate 603 and the rear friction plate 604 are respectively arranged in the front and rear directions of the inner shear plate 601 and are in close contact with each other. The friction holes on the front friction plate 603 and the rear friction plate 604 coincide with the elliptical bolt holes on the inner shear plate 601. The front cover plate 605 and the rear cover plate 606 are respectively arranged in the front and rear directions of the front friction plate 603 and the rear friction plate 604 and are in close contact with each other. The bolt holes on the front cover plate 605 and the rear cover plate 606 coincide with the bolt holes on the front friction plate 603 and the rear friction plate 604. High-strength bolts are used to penetrate the bolt holes and elliptical bolt holes on the front cover plate 605, the rear cover plate 606, the front friction plate 603, the rear friction plate 604 and the inner shear plate 601 to connect them. The outer shear plate 602 is arranged on the front cover plate 605 and the rear cover plate On the upper and lower sides of 606, the upper and lower surfaces of the front cover plate 605 and the rear cover plate 607 are in close contact with the outer shear plate 602, and the upper, lower and right surfaces of the front cover plate 605 and the rear cover plate 606 extend out the ear plate 6052 and the ear plate 6062 respectively and are in close contact with the outer shear plate 602, and the positions of the openings on the ear plate 6052 and the ear plate 6062 of the front cover plate coincide with the positions of the openings of the outer shear plate 602, and the front cover plate 605 and the rear cover plate 606 are fixed together with the outer shear plate 602 by bolts; the SMA stranded wire 607 is put on the short column of the inner shear plate 601 and the SMA stranded wire 607 is passed through the front cover plate ear plate hole 6051, the rear cover plate ear plate hole 6061 and the upper and lower side holes 6021 of the outer shear plate, and the end of the SMA stranded wire 607 is anchored, and the anchoring end is arranged on the outer shear plate 602;

[0054] The embedded bolt 101 on the frame column 1 passes through the hole 6011 of the inner shear plate 601 on the energy-absorbing beam section 6 to connect the energy-absorbing beam section 6 and the frame column 1, and the hole 6022 on the right side of the outer shear plate 602 on the energy-absorbing beam section 6 passes through the embedded bolt 3032 on the beam 303 to connect the energy-absorbing beam section 6 and the beam 303.

[0055] The energy-absorbing beam section is located on the left and right sides of the beam and is connected to the frame column. Relative to the left energy-absorbing beam section, there is an embedded bolt on one side of the left frame column, which passes through the holes on the inner shear plate of the left energy-absorbing beam section and is bolted; the left side of the beam is equipped with embedded bolts, which passes through the holes on the outer shear plate of the left energy-absorbing component and is bolted; relative to the right energy-absorbing component, the assembly method is the same as that on the left.

[0056] The SMA strands are pre-tensioned; the energy-absorbing beam section formed in this way can dissipate energy by friction when sliding up and down. When the inner shear plate 601 moves upward, the upper SMA strands 607 are not subjected to force, and the lower SMA strands 607 generate tension. After the movement, the SMA strands 607 will generate a restorable force to pull the component back to its original position. The principle of sliding downward is the same.

[0057] The working principle of the present invention is as follows:

[0058] Under the action of horizontal load, the shear wall will produce horizontal lateral displacement. Since the bottom of the shear wall is relaxed, it will produce deformation greater than the frame column. The deformation of the shear wall will compress the disc spring in the recovery system and dissipate energy through the friction energy dissipation device. When the compression limit of the disc spring and the sliding limit of the bolt are reached, the shear wall reaches the deformation limit; at the same time, the energy dissipation beam section will produce shear deformation due to the displacement difference between the shear wall and the frame column. The beam section dissipates energy through friction and pulls the SMA strand to deform. When unloading, the elastic restoring force of the disc spring, SMA strand in the self-resetting device and SMA strand in the friction beam section restores the structural deformation. When the energy dissipation beam section, self-resetting device and friction energy dissipation device in the structure are damaged, the components can be removed and replaced to quickly restore the structural function. This shear wall uses friction energy dissipation to reset the structure through the elastic restoring force of the SMA strand and disc spring, and has good seismic performance.

[0059] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] The content of the present invention is not limited to the embodiments listed, and any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the description of the present invention are covered by the claims of the present invention.

Claims

1. A functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall, characterized in that: It comprises a foundation (2), on which two frame columns (1) are vertically arranged; and a multi-layer shear wall (3) is arranged between the two frame columns (1); A self-resetting device (5) and a friction energy dissipation device (4) are provided between the bottom of the shear wall (3) and the foundation (2).

2. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 1, characterized in that: The foundation (2) and the frame column (1) are fixed via a column foot connector (7), and a lower end plate (201) is provided at the center of the foundation (2).

3. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 2, characterized in that: The shear wall (3) comprises a left steel plate (301) and a right steel plate (302); The inner front corrugated steel plate (306) and the inner rear corrugated steel plate (307) are inserted along the longitudinal locking groove (3011) on the left steel plate (301) and the longitudinal locking groove (3021) on the right steel plate (302); the inner front corrugated steel plate (306) and the inner rear corrugated steel plate (307) are provided with a plurality of channel steels (3061) and channel steels (3071) of the same size at the same height, and the channel steels (3061) and channel steels (3071) are tied together by a plurality of U-shaped railings (309); The outer front corrugated steel plate (305) and the outer rear corrugated steel plate (308) are arranged at the front and rear positions of the inner front corrugated steel plate (306) and the inner rear corrugated steel plate (307) respectively; the left and right sides of the outer front corrugated steel plate (305) and the outer rear corrugated steel plate (308) are in close contact with the long strip plates protruding from the left steel plate (301) and the right steel plate (302), and the positions of the holes left are overlapped, and the holes are connected by bolts; concrete is poured between the outer front corrugated steel plate (305) and the inner front corrugated steel plate (306) and the inner rear corrugated steel plate (307) and the outer rear corrugated steel plate (308); concrete is poured between the inner front corrugated steel plate (306) and the inner rear corrugated steel plate (307); A lower steel plate (304) is arranged at the lower part of the shear wall (3), and a beam (303) is arranged at the top. The lower steel plate (304) is placed in a concave hole at the upper part of the beam (303). The corresponding hole positions overlap and are connected by screws to achieve the connection between the upper and lower layers.

4. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 3, characterized in that: The friction energy dissipation device (4) comprises a rubber block (405), the upper surface of the rubber block (405) is in close contact with the upper end plate (3042), and the lower surface of the rubber block (405) is in close contact with the lower end plate (201); The front friction plate (401) and the rear friction plate (402) are arranged at the front and rear positions of the upper end plate (3042) and the lower end plate (201) and are in close contact; the bolt holes on the front friction plate (401) and the rear friction plate (402) coincide with the slot-shaped long holes on the upper end plate (3042) and the lower end plate (201); the front cover plate (403) and the rear cover plate (404) are arranged at the front and rear positions of the front friction plate (401) and the rear friction plate (402) and are in close contact, and the bolt holes on the front cover plate (403) and the rear cover plate (404) coincide with the bolt holes on the front friction plate (401) and the rear friction plate (402) respectively.

5. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 4, characterized in that: The self-resetting device (5) is arranged at the bottom of the shear wall (3) and on both sides of the friction energy dissipation device (4).

6. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 5, characterized in that: The self-resetting device (5) comprises an upper end plate (501) and a lower end plate (502), wherein the upper end plate (501) is connected to the shear wall (3), and the lower end plate (502) is connected to the foundation (2); The lower end plate (502) is sequentially connected with a lower pressure pad (503) and a lower high-strength gasket (504), and the two are welded together; The diameter of the cone core (507) is the same as the diameter of the hole in the disc spring sheet. The disc spring group (506) is composed of disc spring sheets. The cone core (507) passes through a pair of disc spring groups (506). The upper high-strength stress gasket (505) and the lower high-strength stress gasket (504) have holes with the same diameter as the cone core (507) on the left and right sides. The lower end of the cone core (507) passes through the hole of the lower high-strength stress gasket (504) and is in close contact with the lower pressure pad (503). The upper end of the cone core (507) passes through the hole of the upper high-strength stress gasket (505). The prestressed SMA stranded wire (508) is arranged between the two disc spring groups (506). The upper high-strength stress gasket (505) and the lower high-strength stress gasket (504) have holes of the same size. A prestressed SMA strand (508) is passed through and fixed; the outer sleeve (510) is arranged on the upper high-strength stress gasket (505) and the lower high-strength stress gasket (504), and is welded to the lower high-strength stress gasket (504); the inheritance shaft (509) is arranged at the hole position of the upper high-strength stress gasket (505), the hole diameter of the inheritance shaft (509) is larger than the hole diameter of the upper high-strength stress gasket (505), and the height of the inheritance shaft (509) is larger than the height of the cone core (507) protruding from the upper high-strength stress gasket (505), the upper high-strength stress gasket (505) and the inheritance shaft (509) are connected by welding, the cone core (507) passes through the inheritance shaft (509), and the upper part of the inheritance shaft (509) is tightly connected and welded to the upper end plate (501).

7. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 6, characterized in that: The holes on the lower end plate (502) of the self-resetting device (5) are in close contact with and overlap with the holes on the foundation (2), and the holes on the upper end plate (501) of the self-resetting device (5) are in close contact with and overlap with the holes on the lower steel plate (304), and the holes are connected by bolts.

8. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 7, characterized in that: An energy-absorbing beam section (6) is arranged between the beam (303) and the frame column (1); the energy-absorbing beam section (6) comprises an inner shear plate (601), an outer shear plate (602), a front friction plate (603), a rear friction plate (604), a front cover plate (605), a rear cover plate (606), and an SMA stranded wire (607); The front friction plate (603) and the rear friction plate (604) are respectively arranged in the front-to-back direction of the inner shear plate (601) and are in close contact with each other; the front cover plate (605) and the rear cover plate (606) are respectively arranged in the front-to-back direction of the front friction plate (603) and the rear friction plate (604) and are in close contact with each other; the bolt holes of the front cover plate (605) and the bolt holes of the rear cover plate (606) coincide with the bolt holes on the front friction plate (603) and the rear friction plate (604); high-strength bolts are passed through the bolt holes and elliptical bolt holes on the front cover plate (605), the rear cover plate (606), the front friction plate (603), the rear friction plate (604) and the inner shear plate (601) to connect them; the outer shear plate (602) is arranged on the upper and lower sides of the front cover plate (605) and the rear cover plate (606); the front cover plate (605) and the rear cover plate (606) are in close contact with each other; ... The upper and lower surfaces of the front cover plate (605) and the rear cover plate (606) are in close contact with the outer shear plate (602), and the upper, lower and right surfaces of the front cover plate (605) and the rear cover plate (606) extend out of the ear plate (6052) and the ear plate (6062) respectively, and are in close contact with the outer shear plate (602). The positions of the openings on the ear plate (6052) of the front cover plate and the ear plate (6062) of the rear cover plate coincide with the positions of the openings of the outer shear plate (602). The front cover plate (605) is fixed by bolts. , the rear cover plate (606) and the outer shear plate (602) are fixed together; the SMA stranded wire (607) is put on the short column of the inner shear plate (601) and the SMA stranded wire (607) is passed through the ear plate hole (6051) of the front cover plate, the ear plate hole (6061) of the rear cover plate and the upper and lower side holes (6021) of the outer shear plate, and the end of the SMA stranded wire (607) is anchored, and the anchoring end is arranged on the outer shear plate (602); The embedded bolts (101) on the frame column (1) are passed through the holes (6011) of the inner shear plate (601) on the energy absorbing beam section (6) to connect the energy absorbing beam section (6) and the frame column (1); the holes (6022) on the right side of the outer shear plate (602) on the energy absorbing beam section (6) are passed through the embedded bolts (3032) on the beam (303) to connect the energy absorbing beam section (6) and the beam (303).

9. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 8, characterized in that: The friction plate in the friction energy dissipation device is a brass plate.

10. The functionally restorable recycled concrete sandwich-corrugated steel plate composite shear wall according to claim 9, characterized in that: The butterfly spring assembly (506) needs to be pre-compressed in advance, and the butterfly spring leaves are conical and arranged in a stacked and matched manner.

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