An assembled shock-absorbing structure and a shear wall with restorable function

Abstract

The present invention belongs to the technical field of shear walls, and specifically discloses an assembled shock-absorbing structure and a shear wall with recoverable function provided with the shock-absorbing structure; the shock-absorbing structure comprises an upper wall variable friction component and a lower wall variable friction component, the upper wall variable friction component and the lower wall variable friction component are respectively provided with an upper wall corrugated plate and a lower wall corrugated plate, and the wave surfaces of the upper wall corrugated plate and the lower wall corrugated plate fit together; the upper wall and the lower wall of the shear wall are respectively detachably connected to the upper wall variable friction component and the lower wall variable friction component, and the upper wall and the lower wall are penetrated by prestressed tendons; during an earthquake, the friction between the wave surfaces of the shock-absorbing structure dissipates the seismic energy to realize the shock-absorbing function; after the earthquake, the shear wall is restored to its position by the self-resetting function of the prestressed tendons, and the shear wall structure and function are restored by replacing the shock-absorbing structure or replacing some components of the shock-absorbing structure.

Description

Technical Field

[0001] The present invention belongs to the technical field of shear walls, and more specifically, relates to an assembled shock-absorbing structure and a shear wall with recoverable functions. Background Art

[0002] In recent years, construction projects have experienced a trend from structural seismic resistance to structural seismic isolation, and then to recoverable functional structures. Initially, construction projects used high-performance materials and ductile design seismic design methods to improve the seismic resistance of building structures. However, building structures are still prone to serious damage or even collapse under the action of a large earthquake. For this reason, engineering structural seismic isolation technology has been gradually applied to engineering construction. By adding additional dampers and energy-absorbing components to the structure, or by adding seismic isolation elements to the foundation, the seismic energy received by the building structure is reduced to reduce the degree of damage to the building structure under the action of an earthquake. However, although such structures can effectively ensure the safety of the main structure under the action of an earthquake, their shear walls or seismic isolation elements are severely damaged, which is very difficult to repair after the earthquake, and the economic cost of repair is also high. For this reason, recoverable functional structures came into being.

[0003] Recoverable functional structures refer to structures that do not need to be repaired after an earthquake or can be restored to their functional use with only a little repair. Such structures can effectively reduce the damage to various components of building structures. However, current recoverable functional structures still have shortcomings such as large residual deformation after an earthquake and easy damage to joints, which are not enough to fully restore the function of the building structure. Therefore, how to further improve the earthquake resistance and recoverability of building structures is a technical problem that urgently needs to be solved.

[0004] Based on the above defects and shortcomings, the inventors have made further improvements to the existing shear wall structure to solve the problem of structural damage of the shear wall under earthquake in the prior art, and at the same time solve the problem of serious damage and difficulty in repair of the wall shock-absorbing elements in the prior art, and provide an assembled shock-absorbing structure and a shear wall with recoverable function to further improve the earthquake resistance and recoverability of the building structure. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides an assembled shock-absorbing structure and a shear wall with recoverable function, so as to effectively solve the problem of structural damage of the shear wall under the action of earthquake in the prior art, and at the same time solve the problem of serious damage and difficulty in repair of the wall shock-absorbing elements in the prior art, and provide an assembled and replaceable shock-absorbing structure, and a shear wall with recoverable function provided with the shock-absorbing structure, so as to improve the earthquake resistance and recoverable function of the building structure, and thus it is particularly suitable for applications where the wall structure needs to be earthquake-resistant.

[0006] To achieve the above object, as one aspect of the present invention, the present invention provides an assembled shock absorbing structure, which includes an upper wall variable friction assembly and a lower wall variable friction assembly;

[0007] The upper wall variable friction assembly includes an upper wall connection plate and an upper wall corrugated plate; the upper wall connection plate is located on a horizontal plane; the upper wall corrugated plate is located on a vertical plane perpendicular to the horizontal plane and is located below the upper wall connection plate, and both side surfaces of the upper wall corrugated plate are wave surfaces; the transition block is fixedly connected between the upper wall connection plate and the upper wall corrugated plate;

[0008] The lower wall variable friction assembly includes a lower wall corrugated plate and a lower wall connecting plate; two lower wall corrugated plates are arranged parallel to the vertical plane, and the surfaces of the two lower wall corrugated plates close to each other are both wavy curved surfaces; the two lower wall corrugated plates are respectively located outside the two wavy curved surfaces of the upper wall corrugated plate, and the surfaces of the two lower wall corrugated plates close to each other are respectively fitted with the two wavy curved surfaces of the upper wall corrugated plate; the lower wall connecting plate is parallel to the horizontal plane and is fixedly connected under the two lower wall corrugated plates.

[0009] Through the above conception, on the one hand, the shock-absorbing structure can dissipate earthquake energy through the friction between the upper wall corrugated plate and the lower wall corrugated plate to achieve the shock-absorbing function; on the other hand, the shock-absorbing structure is assembled and easy to install and disassemble; when the shock-absorbing structure is applied to the shear wall, it can reduce the damage of the earthquake to the shear wall and solve the problem of the shear wall being damaged under the action of the earthquake; and the shock-absorbing structure can be disassembled and replaced to help restore the wall structure and function.

[0010] As a further preference, the two lower wall corrugated plates are both located below the transition block, and a gap is left between the two transition blocks to prevent the lower wall corrugated plates, the upper wall corrugated plates and the transition blocks from being squeezed and deformed during an earthquake.

[0011] As a further preferred embodiment, the transition block has two side surfaces parallel to the vertical plane, and the two side surfaces are respectively flush with the surfaces of the two lower wall corrugated plates that are away from each other to form two connecting surfaces; the shock absorbing structure also includes two energy absorbing plates, and the two energy absorbing plates are respectively close to the two connecting surfaces, and one end of the energy absorbing plate is detachably connected to the transition block, and the other end is detachably connected to the lower wall corrugated plate; by arranging the energy absorbing plate and utilizing the tensile deformation of the energy absorbing plate, the seismic resistance and energy absorption capacity of the shock absorbing structure can be improved, and the damage to the upper wall variable friction assembly and the lower wall variable friction assembly can be reduced.

[0012] As a further preferred embodiment, the energy absorbing plate and the transition block are detachably connected by a plurality of first high-strength bolts; each of the first high-strength bolts passes through the energy absorbing plate and the transition block stacked from the outside to the inside, and the two ends are respectively connected to the outsides of the two energy absorbing plates; the energy absorbing plate and the lower wall corrugated plate are detachably connected by a plurality of second high-strength bolts; each of the second high-strength bolts passes through the energy absorbing plate, the lower wall corrugated plate and the upper wall corrugated plate stacked in sequence from the outside to the inside, and the two ends are respectively connected to the outsides of the two energy absorbing plates; the high-strength bolt connection facilitates disassembly and assembly.

[0013] As a further preferred embodiment, the energy absorption plate, the upper wall corrugated plate, the lower wall corrugated plate and the transition block are all provided with bolt holes at the places where the first high-strength bolt or the second high-strength bolt passes through; and the hole diameter of the bolt hole is larger than the outer diameter of the first high-strength bolt or the second high-strength bolt passing through, so that the first high-strength bolt and the second high-strength bolt can slide in the bolt hole as the wall rises during an earthquake, providing greater freedom for the displacement of the upper wall corrugated plate and the lower wall corrugated plate, thereby improving the shock absorption effect.

[0014] As a further preferred embodiment, both ends of each of the first high-strength bolt and the second high-strength bolt are connected to the outer sides of the two energy-absorbing plates through elastic elements; during an earthquake, the elastic elements are squeezed, further improving the shock-absorbing effect of the shock-absorbing structure.

[0015] As further preferred, the elastic element is a butterfly spring.

[0016] As a further preferred embodiment, a plurality of holes are symmetrically provided in the middle of the energy dissipation plate to improve the energy dissipation capacity of the energy dissipation plate.

[0017] As a further preference, the opening of the energy dissipation plate is elliptical.

[0018] According to another aspect of the present invention, a shear wall with restorable function is provided, which includes an upper wall, a lower wall, a shock-absorbing structure and prestressed tendons; the upper wall and the lower wall are parallel to the vertical plane and connected up and down; a plurality of empty grooves are arranged at the connection between the upper wall and the lower wall; a shock-absorbing structure is arranged in each of the empty grooves, the upper wall corrugated plate and the lower wall corrugated plate of each shock-absorbing structure are parallel to the wall surfaces of the upper wall and the lower wall, and the upper wall connecting plate and the lower wall connecting plate of each shock-absorbing structure are detachably connected to the upper wall and the lower wall respectively; a plurality of prestressed tendons are arranged, and each prestressed tendon runs through the upper wall and the lower wall.

[0019] Through the above conception, the shear wall can achieve shock absorption of the shear wall and resist earthquake damage to the wall structure by using the shock-absorbing structure of the present invention and connecting the shock-absorbing structure with the upper wall and the lower wall; through the self-resetting ability of the prestressed tendons and the deadweight of the wall, the shear wall can be restored to its original position after the earthquake to achieve normal use of the building after the earthquake; through the assembled design of the shock-absorbing structure and the detachable connection between the shock-absorbing structure and the upper wall and the lower wall, when the shock-absorbing structure is damaged by the earthquake, the shear wall structure and function can be restored by replacing the shock-absorbing structure or replacing some components of the shock-absorbing structure.

[0020] As a further preferred embodiment, the upper wall connecting plate and the lower wall connecting plate are detachably connected to the upper wall and the lower wall respectively by bolts; the upper wall and the lower wall are provided with a plurality of embedded threaded sleeves at each of the empty slots; the bolts pass through the upper wall connecting plate and the lower wall connecting plate respectively, and are connected to the embedded threaded sleeves provided on the upper wall and the lower wall respectively; an anchoring steel bar is connected to one end of each of the embedded threaded sleeves away from the empty slot to prevent the embedded threaded sleeve from being pulled out due to excessive force under the action of an earthquake.

[0021] As a further preference, the anchor steel bar is an L-shaped bent long anchor steel bar.

[0022] According to another aspect of the present invention, there is provided a method for installing a restorable shear wall, the method comprising the following steps:

[0023] S1, manufacturing and hoisting the upper wall and the lower wall, and setting a plurality of empty slots at the connection between the upper wall and the lower wall; manufacturing the shock absorbing structure;

[0024] S2, inserting the shock absorbing structure into the empty groove at the connection between the upper wall and the lower wall, so that the upper wall corrugated plate and the lower wall corrugated plate of each shock absorbing structure are parallel to the wall surface of the upper wall and the lower wall, and connecting the upper wall connecting plate and the lower wall connecting plate of each shock absorbing structure to the upper wall and the lower wall respectively;

[0025] S3, installing the prestressed tendons and tensioning them to a controlled stress value.

[0026] In general, the above technical solution conceived by the present invention has the following technical advantages compared with the prior art:

[0027] 1. The shock-absorbing structure provided by the present invention can dissipate earthquake energy through the friction between the upper wall corrugated plate and the lower wall corrugated plate to achieve the shock-absorbing function; the shear wall of the present invention can achieve shock absorption of the shear wall by using the shock-absorbing structure and connecting the shock-absorbing structure with the upper wall and the lower wall, thereby resisting the damage to the wall structure caused by the earthquake; through the self-resetting ability of the prestressed tendons and the dead weight of the wall, the shear wall can be restored to its original position after the earthquake to achieve normal use of the building after the earthquake; through the assembled design of the shock-absorbing structure and the detachable connection between the shock-absorbing structure and the upper wall and the lower wall, when the shock-absorbing structure is damaged by the earthquake, the shear wall structure and function can be restored by replacing the shock-absorbing structure or replacing some components of the shock-absorbing structure.

[0028] 2. As an improvement of the above scheme, by using energy-absorbing plates and elastic elements, the seismic energy is consumed by the tensile deformation of the energy-absorbing plates and the elasticity of the elastic elements, thereby further improving the shock-absorbing effect of the shock-absorbing structure; during the entire earthquake process, the seismic energy is mainly concentrated in the shock-absorbing structure, which can effectively reduce the damage to the wall structure under the action of the earthquake.

[0029] 3. As a further improvement of the above scheme, by making the hole diameters of the bolt holes on the energy dissipation plate, the upper wall corrugated plate, the lower wall corrugated plate and the transition block larger than the hole diameters of the high-strength bolts, and opening elliptical holes on the energy dissipation plate, the shock absorption effect is further improved.

[0030] 4. As another improvement of the above solution, it is easy to disassemble and assemble by connecting with bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a front view of a shear wall according to an embodiment of the invention;

[0032] Figure 2 yes Figure 1 Side view of the structure (excluding the upper and lower walls);

[0033] Figure 3 Schematic diagram of the wall-mounted friction component of an embodiment of the present invention

[0034] Figure 4 is a schematic diagram of a lower wall variable friction assembly according to an embodiment of the present invention;

[0035] Figure 5 Schematic diagram of an energy dissipation panel according to an embodiment of the present invention.

[0036] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0037] 1-anchor, 2-prestressed tendons, 3-upper wall variable friction assembly, 4-energy absorption plate, 5-lower wall variable friction assembly, 6-upper wall, 7-anchor steel bars, 8-high-strength bolts, 9-embedded threaded sleeves, 10-lower wall, 11 elastic element. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Figure 1 The shear wall of the embodiment of the invention is shown in FIG.

[0040] like Figure 1 As shown in the figure, a shear wall with recoverable function provided by an embodiment of the present invention is placed vertically, and the shear wall includes an upper wall 6, a lower wall 10, a shock-absorbing structure and prestressed tendons 2; wherein, the upper wall 6 and the lower wall 10 are connected up and down, and a plurality of empty grooves are arranged at the connection between the upper wall 6 and the lower wall 10; a shock-absorbing structure is arranged in each empty groove, and is connected up and down with the upper wall 6 and the lower wall 10; a plurality of prestressed tendons 2 are arranged, and each prestressed tendon 2 passes through the upper wall 6 and the lower wall 10, and is used to make the wall of the shear wall reset itself after an earthquake, so as not to affect the post-earthquake use function of the shear wall structure.

[0041] Through the connection of the above-mentioned components, the present invention connects the upper wall 6 and the lower wall 10 to form a whole through the shock-absorbing structure and the prestressed tendons 2; the shock-absorbing structure absorbs energy during an earthquake to reduce the damage caused by the earthquake to the shear wall; and the damaged shock-absorbing structure is replaced after the earthquake, and the shear wall is reset by itself through the prestressed tendons 2, thereby realizing the recovery of the shear wall function.

[0042] In the present embodiment, two empty grooves are provided at the connection between the upper wall 6 and the lower wall 10, which are respectively located at the two ends of the foot of the upper wall 6, so that after the shock-absorbing structures are respectively installed in the two empty grooves, the forces at both ends of the upper wall 6 and the lower wall 10 are balanced, and the positions of the two empty grooves are convenient for the installation of the shock-absorbing structure; in some embodiments, the number of empty grooves can be one, or can be more than three; in some embodiments, the empty grooves can also be provided in the lower wall 10, or grooves can be respectively opened in the upper wall 6 and the lower wall 10 and connected to form empty grooves; in the present embodiment, one prestressed tendon 2 is provided, and runs through the middle of the upper wall 6 and the lower wall 10, and the ends of the prestressed tendon 2 are fixed by anchors 1; in some embodiments, there can also be multiple prestressed tendons 2, in which case the prestressed tendons 2 can be symmetrically arranged in the middle position of the shear wall to reduce the residual displacement error caused by the wall swaying.

[0043] The shock absorbing structure of the present invention will be described in more detail below.

[0044] As a key component of the present invention, Figure 1 and Figure 2 As shown in , the shock absorbing structure includes an upper wall variable friction component 3 and a lower wall variable friction component 5;

[0045] As 2 and Figure 3 As shown in the figure, the upper wall variable friction assembly 3 includes an upper wall connecting plate and an upper wall corrugated plate; when the shock absorbing structure is installed in the empty groove at the connection between the upper wall body 6 and the lower wall 10, the upper wall connecting plate is horizontally arranged and detachably connected to the upper wall body 6; the upper wall corrugated plate is parallel to the wall surface of the shear wall and is located below the upper wall connecting plate, and both sides of the upper wall corrugated plate are wave curved surfaces; the transition block is fixedly connected between the upper wall connecting plate and the upper wall corrugated plate;

[0046] like Figure 2 and Figure 4 As shown in the figure, the lower wall variable friction assembly 5 includes a lower wall corrugated plate and a lower wall connecting plate; two lower wall corrugated plates are provided, and both are arranged parallel to the wall surface of the shear wall, and the surfaces of the two lower wall corrugated plates close to each other are both wavy curved surfaces, and the two lower wall corrugated plates are respectively located on the outside of the two wavy curved surfaces of the upper wall corrugated plate, and the surfaces of the two lower wall corrugated plates close to each other are respectively fitted with the two wavy curved surfaces of the upper wall corrugated plate; the lower wall connecting plate is horizontally arranged and fixedly connected to the bottom of the two lower wall corrugated plates, and is detachably connected to the lower wall body 10; in this embodiment, the lower wall connecting plate is connected to the top surface of the lower wall body 10.

[0047] Through the design of the above-mentioned shock-absorbing structure and the connection between the shock-absorbing structure and the upper wall 6 and the lower wall 10, the shock absorption of the shear wall can be achieved; specifically, during an earthquake, affected by the vertical acceleration and horizontal acceleration of the earthquake, the shear wall moves vertically under the action of the earthquake, and at the same time swings horizontally along the thickness direction of the shear wall; since the upper wall corrugated plate and the two lower wall corrugated plates of the shock-absorbing structure are arranged to be parallel to the wall surface of the shear wall, and are respectively connected to the upper wall 6 and the lower wall 10 through the upper wall connecting plate and the lower wall connecting plate, the upper wall corrugated plate and the lower wall corrugated plate are displaced up and down during an earthquake; through the displaced friction between the wave curved surfaces of the upper wall corrugated plate and the lower wall corrugated plate, the energy during the earthquake can be absorbed to achieve the shock absorption effect.

[0048] The connection method between the shock absorbing structure and the upper wall 6 and the lower wall 10, as well as the various components of the shock absorbing structure will be described in more detail below.

[0049] The upper wall connecting plate and the lower wall connecting plate of the shock absorbing structure are detachably connected to the upper wall 6 and the lower wall 10 respectively by bolts; Figure 2 As shown in , the upper wall 6 and the lower wall 10 are provided with a plurality of embedded threaded sleeves 9 at each empty slot; the bolts pass through the upper wall connecting plate and the lower wall connecting plate respectively, and are connected to the embedded threaded sleeves 9 provided on the upper wall 6 and the lower wall 10 respectively; in the present embodiment, the upper wall connecting plate and the lower wall connecting plate are both rectangular, and the upper wall 6 and the lower wall 10 are respectively provided with four embedded threaded sleeves 9, which correspond to the four corners of the upper wall connecting plate and the lower wall connecting plate respectively; in some embodiments, the number and position of the embedded threaded sleeves 9 can be determined according to the shape of the upper wall connecting plate and the lower wall connecting plate, the thickness of the upper wall 6 and the lower wall 10 and other conditions, so that the shock absorbing structure is connected between the upper wall 6 and the lower wall 10, and is easy to install and disassemble; an anchoring steel bar 7 is connected to the end of each embedded threaded sleeve 9 away from the empty slot to prevent the embedded threaded sleeve 9 from being pulled out due to excessive force under the action of an earthquake; in the present embodiment, the anchoring steel bar 7 is an L-shaped bent long anchoring steel bar.

[0050] like Figure 2 As shown in the figure, in this embodiment, the two lower wall corrugated plates of the lower wall variable friction assembly 5 are both located below the transition block of the upper wall variable friction assembly 3, and a gap is left between the bottom surface of the transition block and the top surfaces of the two lower wall corrugated plates to prevent the lower wall corrugated plates, upper wall corrugated plates and transition blocks from being squeezed and deformed due to wall swaying during an earthquake.

[0051] like Figure 1 and Figure 2As shown in , in this embodiment, the transition block has two side surfaces parallel to the shear wall surface, and the two side surfaces are respectively flush with the surfaces of the two lower wall corrugated plates that are away from each other to form two connecting surfaces; the shock absorbing structure also includes two energy absorbing plates 4, the two energy absorbing plates 4 are respectively close to the two connecting surfaces, and one end of the energy absorbing plate 4 is detachably connected to the transition block, and the other end is detachably connected to the lower wall corrugated plate; through the yield deformation of the energy absorbing plate 4, the seismic resistance and energy dissipation capacity of the shock absorbing structure can be improved, and the damage to the upper wall variable friction assembly 3 and the lower wall variable friction assembly 5 can be reduced; in this embodiment, as Figure 5 As shown in the figure, a plurality of holes are symmetrically opened in the middle of the energy dissipation plate 4 to make the energy dissipation plate 4 easy to yield and improve the energy dissipation capacity of the energy dissipation plate 4; in this embodiment, four elliptical holes are opened in the middle of the energy dissipation plate 4; in some embodiments, the openings of the energy dissipation plate 4 can also be diamond-shaped, rectangular or other optimized shapes.

[0052] like Figure 2 As shown in the figure, the energy absorbing plate 4 and the transition block, the energy absorbing plate 4 and the lower wall corrugated plate are respectively detachably connected by high-strength bolts 8, which is convenient for disassembly and assembly; specifically, the energy absorbing plate 4 and the transition block are detachably connected by a plurality of first high-strength bolts; in the present embodiment, two first high-strength bolts are provided, each of which penetrates the energy absorbing plate 4 and the transition block stacked from the outside to the inside, and the two ends are respectively connected to the outsides of the two energy absorbing plates 4; the energy absorbing plate 4 and the lower wall corrugated plate are detachably connected by a plurality of second high-strength bolts; in the present embodiment, three rows of second high-strength bolts are provided from top to bottom, and two are provided in each row, and each second high-strength bolt penetrates the energy absorbing plate 4, the lower wall corrugated plate and the upper wall corrugated plate stacked in sequence from the outside to the inside, and the two ends are respectively connected to the outsides of the two energy absorbing plates 4.

[0053] like Figure 3-Figure 5 As shown in the figure, the energy-absorbing plate 4, the upper wall corrugated plate, the lower wall corrugated plate and the transition block are all provided with bolt holes at the places where the first high-strength bolt or the second high-strength bolt passes through; and the hole diameter of the bolt hole is larger than the outer diameter of the first high-strength bolt or the second high-strength bolt passing through, so that the first high-strength bolt and the second high-strength bolt can slide in the bolt hole as the wall rises during an earthquake, providing greater freedom for the displacement of the upper wall corrugated plate and the lower wall corrugated plate, thereby improving the shock absorption effect.

[0054] like Figure 2 As shown in the figure, both ends of each first high-strength bolt and the second high-strength bolt are connected to the outer sides of the two energy-absorbing plates 4 through elastic elements; during an earthquake, the elastic elements are squeezed, further enhancing the shock-absorbing effect of the shock-absorbing structure; in this embodiment, the elastic elements are butterfly springs.

[0055] The above examples are used to illustrate the shock-absorbing structure and the shear wall with recoverable function of the present invention, and do not constitute a limitation on the protection scope of the present invention.

[0056] The working mechanism of the shock absorbing structure and the restorable functional shear wall of the present invention will be described below.

[0057] During an earthquake, when the seismic force on the shear wall structure is greater than the initial static friction between the wave surfaces of the upper wall corrugated plate and the lower wall corrugated plate of the shock-absorbing structure, the wall begins to sway under the action of the earthquake; at this time, energy is consumed by the friction between the wave surfaces of the upper wall corrugated plate and the lower wall corrugated plate of the shock-absorbing structure to achieve shock absorption of the wall structure; since the bolt hole diameters of the energy-absorbing plate 4, the upper wall corrugated plate, the lower wall corrugated plate and the transition block are greater than the outer diameter of the high-strength bolt, the high-strength bolt slides in the bolt hole, and the upper wall corrugated plate and the lower wall corrugated plate are displaced, and the butterfly spring outside the energy-absorbing plate 4 is squeezed, and the energy-absorbing capacity and seismic resistance of the shock-absorbing structure are further improved. Before the high-strength bolt slides to the edge of the bolt hole, the wall structure mainly consumes energy through the friction between the wave surfaces and the elasticity of the butterfly spring; as the earthquake action intensifies, the high-strength bolt slides to the edge of the bolt hole, and the energy-absorbing plate 4 begins to play a role, dissipating the seismic energy through tensile deformation.

[0058] After the earthquake ends, the shear wall is restored to its original position through the self-reset capability of the prestressed tendons 2 and the deadweight of the wall, so that the building can be used normally after the earthquake. In addition, when the building structure is subjected to the earthquake, the prestressed tendons 2 will also dissipate the earthquake energy in a coordinated manner.

[0059] After the earthquake ends, if the shock-absorbing structure in the shear wall is damaged in the earthquake, the shear wall structure and function can be restored by replacing the shock-absorbing structure or replacing some components of the shock-absorbing structure.

[0060] The following is a detailed description of the installation method of the restorable functional shear wall of the present invention, which comprises the following steps:

[0061] S1, manufacturing and hoisting the upper wall 6 and the lower wall 10, and setting a plurality of empty slots at the connection between the upper wall 6 and the lower wall 10; manufacturing the shock absorbing structure;

[0062] Specifically, in this embodiment, the upper wall 6 and the lower wall 10 of the shear wall are formed by pouring in a prefabricated factory; before pouring concrete, an empty slot for installing the shock-absorbing structure needs to be reserved; at the same time, the embedded threaded sleeve 9 connected with the L-shaped long bent steel bar needs to be embedded in the corresponding position and fixed with a bracket to prevent it from shifting during the pouring and vibration process; in addition, a corrugated sleeve is embedded at the corresponding position of the central axis of the wall to reserve the prestressed tendon 2 channel;

[0063] After the upper wall 6 and the lower wall 10 are manufactured, the upper wall 6 and the lower wall 10 of the shear wall are hoisted in place so that the upper wall 6 and the lower wall 10 are connected up and down; after the wall is hoisted in place, it is necessary to first set up oblique protection supports around the wall before removing the hoisting equipment to prevent the wall from tilting and collapsing;

[0064] The shock absorbing structure is manufactured by wire cutting; the upper wall variable friction component 3 and the lower wall variable friction component 5 can be cut from a piece of parent material;

[0065] For the upper wall variable friction assembly 3, in order to achieve connection with the energy dissipation plate 4, the height of the transition block is selected to be 70mm-100mm, and in this embodiment is 100mm; the two side surfaces of the transition block are flush with the surfaces of the two lower wall corrugated plates of the lower wall variable friction assembly 5 that are away from each other; the wave curved surfaces of the upper wall corrugated plate and the lower wall corrugated plate are formed by wire cutting of the parent material to make the wave curved surfaces fit better; two and six bolt holes are respectively provided on the transition block and the upper wall corrugated plate for passing high-strength bolts; four holes are provided on the upper wall connecting plate to correspond to the position of the embedded threaded sleeve 9 in the upper wall plate;

[0066] For the lower wall variable friction assembly 5, six bolt holes are opened on the two lower wall corrugated plates to correspond to the six bolt holes on the upper wall connecting plate; four holes are opened on the lower wall connecting plate to correspond to the positions of the embedded threaded sleeves 9 in the lower wall plate;

[0067] For the energy dissipation plate 4, eight bolt holes are opened at positions corresponding to the transition block and the two lower wall corrugated plates; and in order to improve its energy dissipation capacity, four oval long holes are symmetrically opened in the middle of the plate;

[0068] The diameters of the bolt holes on the transition block, the upper wall corrugated plate, the lower wall corrugated plate and the energy dissipation plate 4 are all 4mm-6mm larger than the outer diameter of the high-strength bolts, so that the high-strength bolts can slide in the holes.

[0069] After the components are manufactured, the upper wall variable friction assembly 3, the lower wall variable friction assembly 5 and the energy dissipation plate 4 are assembled to form a shock absorbing structure; the specific process is as follows:

[0070] S1a, insert the upper wall friction component 3 into the lower wall friction component 5 from the side, so that the upper wall corrugated plate is located between the two lower wall corrugated plates; in order to prevent the upper wall friction component 3 and the lower wall friction component 5 from being squeezed and deformed during an earthquake, a gap of 30mm-40mm is reserved between the bottom surface of the transition piece of the upper wall friction component 3 and the top surface of the lower wall corrugated plate of the lower wall friction component 5, which can be achieved by cutting the lower wall corrugated plate so that the height of the lower wall corrugated plate is smaller than that of the upper wall corrugated plate;

[0071] S1b, fix the energy-absorbing plate 4 on the outside of the two lower wall corrugated plates, then pass the butterfly spring to the end of each high-strength bolt, and then pass the high-strength bolt through the bolt hole, arrange the butterfly spring on the other side of each high-strength bolt, and then tighten the bolt; complete the assembly of the shock-absorbing structure.

[0072] S2, inserting a shock-absorbing structure into the empty groove at the connection between the upper wall 6 and the lower wall 10, so that the upper wall corrugated plate and the lower wall corrugated plate of each shock-absorbing structure are parallel to the wall surface of the upper wall 6 and the lower wall 10; and connecting the upper wall connecting plate and the lower wall connecting plate of each shock-absorbing structure to the upper wall 6 and the lower wall 10 respectively;

[0073] In order to prevent the replaceable steel member from having an error with the pre-buried hole in the wall after the prestressed tendon 2 is tensioned, which may cause the replaceable steel member to be unable to be adjusted, the shock absorbing structure is installed first, and then the prestressed tendon 2 is installed.

[0074] S3, installing the prestressed tendons 2 and tensioning them to a controlled stress value;

[0075] The prestressed tendons 2 are passed through the upper wall 6 and the lower wall 10, and then the prestressed tendons 2 are tensioned to the controlled stress value using tensioning equipment; after the tensioning is completed, the excess prestressed tendons 2 are cut off, and finally the anchor 1 is installed to complete the anchor sealing.

[0076] After the earthquake, if the shock-absorbing structure in the shear wall is damaged in the earthquake, or some components of the shock-absorbing structure are damaged in the earthquake, the shock-absorbing structure can be remade and reinstalled in the wall of the shear wall in the manner described in steps S1 and / or S2.

[0077] In summary, the assembled shock-absorbing structure according to the present invention and the shear wall with restorable function provided with the shock-absorbing structure can solve the problem of structural damage under the action of an earthquake. At the same time, its shock-absorbing structure can be replaced, and the shear wall can restore its function after an earthquake. Therefore, it is particularly suitable for applications where wall structures are earthquake-resistant.

[0078] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled shock absorbing structure, characterized in that: It comprises an upper wall variable friction component (3) and a lower wall variable friction component (5); The upper wall variable friction assembly (3) comprises an upper wall connection plate and an upper wall corrugated plate; the upper wall connection plate is located on a horizontal plane; the upper wall corrugated plate is located on a vertical plane perpendicular to the horizontal plane and is located below the upper wall connection plate, and both side surfaces of the upper wall corrugated plate are wavy curved surfaces; the transition block is fixedly connected between the upper wall connection plate and the upper wall corrugated plate; The lower wall variable friction assembly (5) comprises a lower wall corrugated plate and a lower wall connecting plate; two lower wall corrugated plates are arranged parallel to the vertical plane, and the surfaces of the two lower wall corrugated plates close to each other are both corrugated curved surfaces; the two lower wall corrugated plates are respectively located outside the two corrugated curved surfaces of the upper wall corrugated plate, and the surfaces of the two lower wall corrugated plates close to each other are respectively fitted with the two corrugated curved surfaces of the upper wall corrugated plate; the lower wall connecting plate is parallel to the horizontal plane, and is fixedly connected below the two lower wall corrugated plates; The two lower wall corrugated plates are both located below the transition block, and a gap is left between the two lower wall corrugated plates and the transition block; The transition block has two side surfaces parallel to the vertical plane, the two side surfaces are respectively flush with the surfaces of the two lower wall corrugated plates that are away from each other, forming two connection surfaces; the shock absorbing structure also includes two energy absorbing plates (4), the two energy absorbing plates (4) are respectively closely attached to the two connection surfaces, and one end of the energy absorbing plate (4) is detachably connected to the transition block, and the other end is detachably connected to the lower wall corrugated plate; The energy-absorbing plate (4) and the transition block are detachably connected by means of a plurality of first high-strength bolts; each of the first high-strength bolts penetrates the energy-absorbing plate (4) and the transition block stacked from the outside to the inside, and its two ends are respectively connected to the outsides of the two energy-absorbing plates (4); the energy-absorbing plate (4) and the lower wall corrugated plate are detachably connected by means of a plurality of second high-strength bolts; each of the second high-strength bolts penetrates the energy-absorbing plate (4), the lower wall corrugated plate and the upper wall corrugated plate stacked in sequence from the outside to the inside, and its two ends are respectively connected to the outsides of the two energy-absorbing plates (4); A plurality of holes are symmetrically provided in the middle of the energy dissipation plate (4).

2. The shock absorbing structure according to claim 1, characterized in that: The energy dissipation plate (4), the upper wall corrugated plate, the lower wall corrugated plate and the transition block are all provided with bolt holes at the locations where the first high-strength bolt or the second high-strength bolt passes through; and the hole diameter of the bolt hole is larger than the outer diameter of the first high-strength bolt or the second high-strength bolt passing through.

3. The shock absorbing structure according to claim 2, characterized in that: Both ends of each of the first high-strength bolt and the second high-strength bolt are connected to the outer sides of the two energy-absorbing plates (4) through elastic elements.

4. A shear wall with recoverable function provided with a shock absorbing structure as claimed in any one of claims 1 to 3, characterized in that: The invention comprises an upper wall (6), a lower wall (10), a shock absorbing structure and prestressed tendons (2); the upper wall (6) and the lower wall (10) are parallel to the vertical plane and connected vertically; a plurality of empty slots are arranged at the connection between the upper wall (6) and the lower wall (10); a shock absorbing structure is arranged in each of the empty slots, and an upper wall connecting plate and a lower wall connecting plate of each shock absorbing structure are detachably connected to the upper wall (6) and the lower wall (10) respectively; a plurality of prestressed tendons (2) are arranged, and each prestressed tendon (2) passes through the upper wall (6) and the lower wall (10).

5. The shear wall according to claim 4, characterized in that: The upper wall connection plate and the lower wall connection plate are detachably connected to the upper wall (6) and the lower wall (10) respectively by means of bolts; the upper wall (6) and the lower wall (10) are provided with a plurality of embedded threaded sleeves (9) at each of the empty slots; the bolts pass through the upper wall connection plate and the lower wall connection plate respectively, and are connected to the embedded threaded sleeves (9) provided on the upper wall (6) and the lower wall (10) respectively; and an anchoring steel bar (7) is connected to one end of each of the embedded threaded sleeves (9) away from the empty slot.

6. The method for installing a shear wall according to claim 5, characterized in that: The following steps are involved: S1, manufacturing and hoisting the upper wall (6) and the lower wall (10), and providing a plurality of empty grooves at the connection between the upper wall (6) and the lower wall (10); manufacturing the shock absorbing structure; S2, inserting the shock absorbing structure into the empty groove at the connection between the upper wall (6) and the lower wall (10), so that the upper wall corrugated plate and the lower wall corrugated plate of each shock absorbing structure are parallel to the wall surface of the upper wall (6) and the lower wall (10), and connecting the upper wall connecting plate and the lower wall connecting plate of the shock absorbing structure to the upper wall (6) and the lower wall (10), respectively; S3, installing the prestressed tendons (2) and tensioning them to a controlled stress value.

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