Energy-dissipating connection structure and assembled concrete shear wall device

Abstract

The present invention discloses an energy-absorbing connection structure and an assembled concrete shear wall device, comprising a first energy-absorbing part, a second energy-absorbing part, a first fixing part, and a second fixing part. The first energy-absorbing part and the second energy-absorbing part are deformed to consume the load energy in the first direction and the second direction respectively. The first fixing part is used to control the deformation of the first energy-absorbing part along the first direction, and the second fixing part is used to control the deformation of the second energy-absorbing part along the second direction. The present invention prevents an external connector from being damaged by the load through the deformation of the first energy-absorbing part and the second energy-absorbing part, and controls the deformation of the first energy-absorbing part along the first direction through the first fixing part, and controls the deformation of the second energy-absorbing part along the second direction through the second fixing part. When the first energy-absorbing part and / or the second energy-absorbing part are severely damaged, the external connector can be restored to its functional state by replacing the first energy-absorbing part and / or the second energy-absorbing part.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated buildings, and in particular relates to an energy-dissipating connection structure and a prefabricated concrete shear wall device. Background Art

[0002] Prefabricated concrete shear wall structures have been one of the most widely used and fastest-growing structural systems in prefabricated buildings in my country in recent years. They can be used in high-rise and super-high-rise buildings and have broad application prospects. Prefabricated concrete shear wall structures are characterized by prefabricated shear walls, partially or fully prefabricated, composite floor slabs, sleeve-grouted connections for vertical reinforcement, and cast-in-place concrete connections for edge members. Prefabricated concrete shear walls exhibit good lateral stiffness under earthquakes, but reciprocating loads can cause concrete crushing on both sides of the shear wall's base, reducing its bearing capacity and prematurely decommissioning it. Summary of the Invention

[0003] The purpose of the present invention is to provide an energy-dissipating connection structure and an assembled concrete shear wall device to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above objectives, the present invention provides an energy dissipation connection structure, comprising:

[0005] a first energy-consuming portion, wherein when the first energy-consuming portion is subjected to a load in a first direction, the first energy-consuming portion deforms to consume the energy of the load in the first direction;

[0006] a second energy absorbing portion, wherein when the second energy absorbing portion is subjected to a load in a second direction, the second energy absorbing portion deforms to dissipate the energy of the load in the second direction;

[0007] a first fixing portion, the first fixing portion being detachably connected to the first energy-consuming portion, the first fixing portion being used to control the deformation of the first energy-consuming portion along a first direction, and the first fixing portion being detachably connected to an external connecting body;

[0008] a second fixing portion, the second fixing portion being detachably connected to the second energy consuming portion, the second fixing portion being used to control the deformation of the second energy consuming portion along a second direction, and the second fixing portion being detachably connected to the external connecting body;

[0009] The first direction and the second direction are perpendicular to each other, and the first energy consumption part and the second energy consumption part are arranged along the second direction.

[0010] Optionally, the first energy dissipation portion is an energy dissipation plate, and the energy dissipation plate is provided with bending grooves on both sides of the second direction, and the bending grooves are used to reduce the rigidity of the deformation area of ​​the energy dissipation plate;

[0011] The first fixing portion includes a first restraining plate and a second restraining plate that are arranged in parallel and at intervals, and the energy dissipation plate is disposed between the first restraining plate and the second restraining plate and is detachably connected thereto.

[0012] Optionally, one end of the energy dissipation plate in the first direction is fixedly connected to an energy dissipation end plate, and the other end of the energy dissipation plate in the first direction is detachably connected to the first constraint plate and the second constraint plate;

[0013] The other ends of the first constraint plate and the second constraint plate in the first direction are fixedly connected with a constraint end plate;

[0014] The energy-absorbing end plate and the restraining end plate are both detachably connected to the external connector, and the energy-absorbing end plate and the restraining end plate are used to apply a first-direction load to the energy-absorbing plate.

[0015] Optionally, an oblong hole is opened on the energy dissipation plate, and the oblong hole is arranged along the first direction. A sliding rod is slidably arranged in the oblong hole, and both ends of the sliding rod are detachably connected to the first constraint plate and the second constraint plate respectively.

[0016] Optionally, the second energy-absorbing part includes a first fixing plate, a second fixing plate, and several deformable parts fixedly arranged between the first fixing plate and the second fixing plate, the cross-sectional area at both ends of the deformable parts is larger than the middle cross-sectional area, and the several deformable parts are arranged at intervals, and the first fixing plate and the second fixing plate are respectively detachably connected to the second fixing part.

[0017] Optionally, the second fixing portion includes a fixed limiting element, which is detachably connected to the first fixing plate and the second fixing plate. The fixed limiting element is used to limit deformation of the first fixing plate and the second fixing plate, and the fixed limiting element is detachably connected to the external connecting member.

[0018] Optionally, the fixed limiting element includes a first fixed angle steel and a second fixed angle steel, the first fixed angle steel and the second fixed angle steel are arranged on both sides of the first fixed plate and the second fixed plate and are detachably connected thereto, and the first fixed angle steel and the second fixed angle steel are provided with anchor plates on the side close to the external connector, the anchor plates are detachably connected to the first fixed angle steel and the second fixed angle steel respectively, and the anchor plates are connected to the external connector.

[0019] An assembled concrete shear wall device, comprising:

[0020] Such as the energy dissipation connection structure mentioned above;

[0021] An assembled concrete wall, wherein the assembled concrete wall is arranged along a first direction, and the first fixing portion and the second fixing portion are both detachably connected to the assembled concrete wall;

[0022] A concrete layer is fixedly arranged between two upper and lower adjacent groups of the assembled walls.

[0023] Optionally, several groups of load transfer elements are fixedly installed inside the prefabricated wall, and the load transfer elements are detachably connected to the first fixing part and the second fixing part; some of the load transfer elements in the two adjacent groups of prefabricated concrete walls are inserted into the concrete layer, and two load transfer elements are overlapped.

[0024] Optionally, a pre-embedded single-sided sleeve and a pre-embedded mechanical sleeve are fixedly provided on one side of the anchor plate close to the prefabricated concrete wall, and the pre-embedded single-sided sleeve and the pre-embedded mechanical sleeve are arranged in the prefabricated concrete wall; the pre-embedded mechanical sleeve is connected to the load transfer element, and the pre-embedded single-sided sleeve and the pre-embedded mechanical sleeve are both detachably connected to the fixed limiting element.

[0025] Compared with the prior art, the present invention has the following advantages and technical effects:

[0026] The first energy consuming part and the second energy consuming part in the present invention consume the load energy in the first direction and the second direction by deforming in the first direction and the second direction, thereby achieving energy consumption. The present invention prevents the external connecting body from being damaged by the load through the self-deformation of the first energy consuming part and the second energy consuming part.

[0027] The present invention controls the first energy consuming part to deform along the first direction by the first fixing part, and controls the second energy consuming part to deform along the second direction by the second fixing part, thereby preventing the first energy consuming part and the second energy consuming part from deforming under no external load, and ensuring the normal operation of the external connector.

[0028] The present invention uses a detachable connection method between the first fixing part and the first energy consuming part, the second fixing part and the second energy consuming part, the first fixing part and the external connecting body, and the second fixing part and the external connecting body. When the first energy consuming part and / or the second energy consuming part is severely damaged, the external connecting body can be restored to its function by replacing the first energy consuming part and / or the second energy consuming part. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a structural schematic diagram of an assembled concrete shear wall device of the present invention;

[0031] Figure 2 This is a structural diagram of the first energy consumption part of the present invention;

[0032] Figure 3 This is a schematic diagram of the energy dissipation plate structure of the present invention;

[0033] Figure 4 This is a structural schematic diagram of the second energy consumption part of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the deformable member of the present invention;

[0035] Figure 6 This is a schematic diagram of the first assembled concrete wall structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the second assembled concrete wall structure of the present invention;

[0037] Figure 8 This is a schematic diagram of the anchor plate structure of the present invention;

[0038] Figure 9 This is a schematic diagram of the cushion structure of the present invention;

[0039] Figure 10 Schematic diagram of the gasket structure of the present invention;

[0040] Figure 11 This is a side view of an assembled concrete shear wall device of the present invention.

[0041] Among them, 1. First buckling energy dissipation connection component, 101. Energy dissipation plate, 102. Buckling groove, 103. First constraint plate, 104. Energy dissipation end plate, 105. Constraint end plate, 106. Long round hole, 107. Sliding rod, 108. Pad, 109. Gasket, 110. Second constraint plate, 2. Second buckling energy dissipation connection component, 201. First fixed plate, 202. Deformable member, 203. Second fixed plate, 204. Anchor plate, 205, embedded single-sided sleeve, 206, embedded mechanical sleeve, 207, first fixed angle steel, 208, second fixed angle steel, 3. First prefabricated concrete wall, 301, first end longitudinal reinforcement, 302, first lap longitudinal reinforcement, 303, first middle longitudinal reinforcement, 4. Second prefabricated concrete wall, 401, second end longitudinal reinforcement, 402, second lap longitudinal reinforcement, 403, second middle longitudinal reinforcement, 5. Concrete layer. DETAILED DESCRIPTION

[0042] It should be noted that, unless there is a conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other. The embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0043] like Figures 1 to 11 As shown, the present invention provides an energy-dissipating connection structure and an assembled concrete shear wall device.

[0044] An energy-absorbing connection structure includes a first energy-absorbing part, a second energy-absorbing part, a first fixing part, and a second fixing part. When the first energy-absorbing part is subjected to a load in a first direction, the first energy-absorbing part deforms to dissipate the energy of the load in the first direction. When the second energy-absorbing part is subjected to a load in a second direction, the second energy-absorbing part deforms to dissipate the energy of the load in the second direction. The first direction and the second direction are perpendicular to each other, and the first energy-absorbing part and the second energy-absorbing part are arranged along the second direction.

[0045] The first fixing part is detachably connected to the first energy consuming part, and the first fixing part is used to control the deformation of the first energy consuming part along the first direction, and the first fixing part is detachably connected to the external connecting body; the second fixing part is detachably connected to the second energy consuming part, and the second fixing part is used to control the deformation of the second energy consuming part along the second direction, and the second fixing part is detachably connected to the external connecting body.

[0046] The first energy consuming part and the second energy consuming part in the present invention consume the load energy in the first direction and the second direction by deforming in the first direction and the second direction, thereby achieving energy consumption. The present invention prevents the external connecting body from being damaged by the load through the self-deformation of the first energy consuming part and the second energy consuming part.

[0047] The present invention controls the first energy consuming part to deform along the first direction by the first fixing part, and controls the second energy consuming part to deform along the second direction by the second fixing part, thereby preventing the first energy consuming part and the second energy consuming part from deforming under no external load, and ensuring the normal operation of the external connector.

[0048] The present invention uses a detachable connection method between the first fixing part and the first energy consuming part, the second fixing part and the second energy consuming part, the first fixing part and the external connecting body, and the second fixing part and the external connecting body. When the first energy consuming part and / or the second energy consuming part is severely damaged, the external connecting body can be restored to its function by replacing the first energy consuming part and / or the second energy consuming part.

[0049] In this embodiment, the first and second energy dissipation components are constructed using a specially constructed energy dissipation plate 101 and a deformable member 202, resulting in different stiffnesses at different locations. This creates a stiffness difference. When a load is applied, the energy dissipation plate 101 and the deformable member 202 deform due to this stiffness difference, thereby dissipating the load energy. Of course, the first and second energy dissipation components can also be elastic components with normal structures. When a load is applied, the entire energy dissipation component deforms, and later, due to the elastic effect, the deformation disappears, dissipating energy in this process. Of course, the energy dissipation components can also be plastic components with normal structures or elastic components with special structures, as long as they dissipate the load energy through deformation.

[0050] like Figure 2-Figure 3 As shown, this embodiment discloses a first buckling energy dissipation connection assembly, which includes a first energy dissipation part and a first fixing part; the first energy dissipation part is an energy dissipation plate 101, and the energy dissipation plate 101 is provided with buckling grooves 102 on both sides of the second direction, and the buckling grooves 102 are used to reduce the stiffness of the deformation area of ​​the energy dissipation plate 101; the first fixing part includes a first constraint plate 103 and a second constraint plate 110 arranged in parallel and at intervals, and the energy dissipation plate 101 is arranged between the first constraint plate 103 and the second constraint plate 110 and is detachably connected thereto.

[0051] Since the energy dissipation plate 101 is provided with buckling grooves 102 on both sides of the second direction, the width of the deformation area of ​​the energy dissipation plate 101 between the two buckling grooves 102 is significantly smaller than the width of other areas, which makes the stiffness of the energy dissipation plate 101 in the deformation area smaller than the stiffness of other areas; when the energy dissipation plate 101 is subjected to an external load in the first direction, the energy dissipation plate 101 buckles and deforms in the deformation area, thereby consuming the load energy received by itself and achieving energy dissipation. The first constraint plate 103 and the second constraint plate 110 in the first fixing part constrain the energy dissipation plate 101 to deform only along the first direction. The first constraint plate 103 and the second constraint plate 110 provide out-of-plane constraints for the energy dissipation plate 101 and cause multi-order buckling, thereby effectively improving its compressive bearing capacity.

[0052] Preferably, one end of the energy-consuming plate 101 in the first direction is fixedly connected to the energy-consuming end plate 104, and the other end of the energy-consuming plate 101 in the first direction is detachably connected to the first constraint plate 103 and the second constraint plate 110; the other end of the first constraint plate 103 and the second constraint plate 110 in the first direction is fixedly connected to the constraint end plate 105.

[0053] The energy dissipation end plate 104 and the restraining end plate 105 are both detachably connected to the external connector. The energy dissipation end plate 104 and the restraining end plate 105 are used to apply a first direction load to the energy dissipation plate 101 .

[0054] First, the energy-absorbing end plate 104 and the constraint end plate 105 are both detachably connected to the external connector. When the external connector is subjected to a load, the energy-absorbing end plate 104 and the constraint end plate 105 transfer the load and apply it to the energy-absorbing plate 101. The energy-absorbing plate 101 bends and deforms, thereby consuming the load energy it receives and achieving energy dissipation, thereby protecting the external connector from the influence of the load and enabling it to be used normally later.

[0055] Secondly, when the external load is large or the destructive force is strong, the energy dissipation plate 101 undergoes significant deformation, causing significant damage to the energy dissipation plate 101. The energy dissipation end plate 104, the constraint end plate 105, and the external connector are disassembled. The disassembled first buckling energy dissipation connection assembly 1 is further disassembled. The energy dissipation plate 101, the first constraint plate 103, and the second constraint plate 110 are separated. A new energy dissipation plate 101 is replaced, assembled to form a new first buckling energy dissipation connection assembly, and then installed on the external connector to restore the external connector to its original function. In this embodiment, the energy dissipation end plate 104 and the energy dissipation plate 101 are integrally structured. When replacing the energy dissipation plate 101, the energy dissipation end plate 104 also needs to be replaced.

[0056] Of course, the end of the energy dissipation plate 101 near the external connector can be directly and detachably connected thereto, or other intermediate connectors, such as a T-shaped plate, can be used to connect the energy dissipation plate 101 to the external connector. The ends of the first and second constraint plates 103 and 110 near the external connector can also be directly and detachably connected thereto, or other intermediate connectors can be used to connect the first and second constraint plates 103 and 110 to the external connector, respectively.

[0057] Preferably, the energy-absorbing end plates 104 and the restraining end plates 105 are arranged perpendicular to the energy-absorbing plate 101. The energy-absorbing end plates 104 and the restraining end plates 105 can better bear the load force and apply the load force to the energy-absorbing plate 101, that is, better transfer the load received and apply it to the energy-absorbing plate 101, so that the energy-absorbing plate 101 bends and deforms, thereby consuming energy to the maximum extent and ensuring the safety of the external connection parts.

[0058] Preferably, the energy dissipation plate 101 is arranged to have the same width as the first and second constraint plates 103, 110. One end of the energy dissipation plate 101 is inserted into one side of the first and second constraint plates 103, 110, so that one side of the energy dissipation plate 101 overlaps with the first and second constraint plates 103, 110. Simultaneously, the first and second constraint plates 103, 110 cover the entire area of ​​the buckling groove 102. When the energy dissipation plate 101 deforms, the first and second constraint plates 103, 110 limit out-of-plane displacement of the energy dissipation plate 101, meaning that deformation and displacement of the energy dissipation plate 101 can only occur between the first and second constraint plates 103, 110. Furthermore, a certain space exists between the sides of the first and second constraint plates 103, 110 near the energy dissipation end plate 104 and the energy dissipation end plate 104, ensuring that the energy dissipation plate 101 can move between the first and second constraint plates 103, 110 when deforming.

[0059] A further optimized solution is that an oblong hole 106 is opened on the energy dissipation plate 101, and the oblong hole 106 is arranged along the first direction. A sliding rod 107 is slidingly arranged in the oblong hole 106, and both ends of the sliding rod 107 are detachably connected to the first constraint plate 103 and the second constraint plate 110 respectively.

[0060] When the external connector is subjected to a load in the first direction, the load is transferred to the energy dissipation plate 101 through the energy dissipation end plate 104 and the constraint end plate 105, and since the first constraint plate 103 and the second constraint plate 110 limit the out-of-plane displacement of the energy dissipation plate 101, that is, the deformation displacement of the energy dissipation plate 101 can only occur between the first constraint plate 103 and the second constraint plate 110, the load acts on the energy dissipation plate 101, and since the sliding rod 107 is detachably connected to the first constraint plate 103 and the second constraint plate 110, When the energy dissipation plate 101 is deformed, since the oblong hole 106 is arranged along the first direction, the sliding rod 107 is slidably set in the oblong hole 106. When the energy dissipation plate 101 is deformed and displaced, it can only be displaced along its height direction by the restriction generated by the sliding rod 107 and the oblong hole 106. The oblong hole 106 is used to limit the movement of the energy dissipation plate 101 in the first direction, which means that the energy dissipation plate 101 can move within the length range of the oblong hole 106 under the action of the load in the first direction and will not exceed this range.

[0061] Preferably, the buckling groove 102 is arranged in the middle of both sides of the energy consumption plate 101, the oblong hole 106 is arranged on the side of the energy consumption plate 101 close to the energy consumption end plate 104, and the energy consumption plate 101 is provided with an ordinary circular hole on the side away from the energy consumption end plate 104. The oblong hole 106 and the ordinary circular hole are respectively arranged on the upper and lower sides of the buckling groove 102; the first constraint plate 103 and the second constraint plate 110 are provided with ordinary circular holes at positions opposite to the oblong hole 106, the buckling groove 102 and the ordinary circular hole on the energy consumption plate 101, and bolts are passed through the corresponding holes to detachably connect the first constraint plate 103, the second constraint plate 110 and the energy consumption plate 101 by bolts. The sliding rod 107 mentioned above is also preferably a bolt.

[0062] Among them, the energy dissipation plate 101 is provided with gaskets 109 on both sides of the ordinary circular hole and the oblong hole, and a gasket 108 is provided in the buckling groove 102. The gasket 108 is in conflict with the first constraint plate 103 and the second constraint plate 110. The gasket 109 and the gasket 108 ensure that the constraint plate and the energy dissipation plate 101 are in conflict with each other. When the outside is subjected to a load in the first direction, the gasket 109 and the gasket 108 are used to ensure uniform force between the first constraint plate 103, the second constraint plate 110 and the energy dissipation plate 101.

[0063] like Figure 4-Figure 5 As shown, this embodiment discloses a second buckling energy dissipation connection assembly, which includes a second energy dissipation portion and a second fixing portion; the second energy dissipation portion includes a first fixing plate 201, a second fixing plate 203, and a plurality of deformable members 202 fixedly arranged between the first fixing plate 201 and the second fixing plate 203, wherein the cross-sectional area at both ends of the deformable member 202 is larger than the middle cross-sectional area, and the plurality of deformable members 202 are arranged at intervals, and the first fixing plate 201 and the second fixing plate 203 are respectively detachably connected to the second fixing portion.

[0064] Since the cross-sectional areas at both ends of the deformable member 202 are larger than the middle cross-sectional area, the middle stiffness of the deformable member 202 is smaller than the stiffness at both ends. This causes the middle region of the deformable member 202 to buckle and deform when the deformable member 202 is subjected to an external load in the second direction, thereby consuming the load energy received by the deformable member 202 and achieving energy dissipation. In addition, the deformable member 202 in the present application is provided with multiple members, thereby improving the load-bearing capacity and energy dissipation capacity of the second energy-dissipating portion, effectively reducing damage to the deformable member 202, and reducing the number of times the deformable member 202 needs to be replaced.

[0065] The dimensions of the deformable member 202 in this embodiment are as follows: Figure 5As shown, the entire component is 460 mm long and 460 mm high, the first fixed plate 201 is 80 mm wide, the first fixed plate 201 is 15 mm thick, the upper and lower ends of the deformable member 202 are 60 mm wide, and the middle part of the deformable member 202 is 20 mm wide. It should be noted that this size is used as the standard in the present invention, and this type of deformable member 202 can be set with deformable members 202 of different sizes according to different construction conditions.

[0066] Preferably, the deformable member 202 and the energy dissipation plate 101 are arranged at the same height so that when the external connection member is subjected to a load, the two can jointly consume the load energy and work simultaneously to prevent the load energy from being concentrated on a certain component and accelerating damage to the component.

[0067] Preferably, the second fixing portion includes a fixed limiting element, which is detachably connected to the first fixing plate 201 and the second fixing plate 203. The fixed limiting element is used to limit the deformation of the first fixing plate 201 and the second fixing plate 203, and the fixed limiting element is detachably connected to the external connecting piece.

[0068] First, the fixed limiting element is detachably connected to the first fixed plate 201 and the second fixed plate 203. When the external connector receives a load in the second direction, the fixed limiting element transfers the load in the second direction and applies it to the deformable member 202. The deformable member 202 bends and deforms, thereby consuming the load energy it receives and achieving energy dissipation, thereby protecting the external connector from the influence of the load and allowing it to be used normally later.

[0069] Secondly, when the external load in the second direction is large or the destructive force is strong, the deformation of the deformable member 202 is significant, causing significant damage to the deformable member 202. The fixed stop element is removed from the external connector, and the removed second buckling energy dissipation connection assembly is further disassembled. The deformable member 202 and the fixed stop element are separated, and a new deformable member 202 is replaced. This new second buckling energy dissipation connection assembly is assembled and installed on the external connector, restoring the functionality of the external connector. In this embodiment, the deformable member 202 is integrally formed with the first fixing plate 201 and the second fixing plate 203. When replacing the deformable member 202, both the first fixing plate 201 and the second fixing plate 203 need to be replaced.

[0070] Again, the fixed limiting element limits the deformation of the first fixing plate 201 and the second fixing plate 203, ensuring that the second energy consuming part can only be deformed in the deformable member 202, ensuring the connection strength between the fixed limiting element and the first fixing plate 201 and the second fixing plate 203 respectively. After the deformable member 202 is deformed in the later stage, it is ensured that the second energy consuming part can be disassembled and separated from the second fixing part, which is convenient for replacing with a new one and preventing the technical problem of being unable to disassemble due to deformation of the first fixing plate 201 and the second fixing plate 203.

[0071] A further optimized solution is provided, in which the fixed limiting element includes a first fixed angle steel 207 and a second fixed angle steel 208. The first fixed angle steel 207 and the second fixed angle steel 208 are arranged on both sides of the first fixed plate 201 and the second fixed plate 203 and are detachably connected thereto. An anchor plate 204 is provided on the side of the first fixed angle steel 207 and the second fixed angle steel 208 close to the external connector. The anchor plate 204 is detachably connected to the first fixed angle steel 207 and the second fixed angle steel 208, respectively, and the anchor plate 204 is connected to the external connector.

[0072] The first fixed angle steel 207 and the second fixed angle steel 208 clamp and fix the first fixed plate 201, and the first fixed angle steel 207 and the second fixed angle steel 208 clamp and fix the second fixed plate 203. The rigidity of the first fixed angle steel 207 and the second fixed angle steel 208 is used to improve the rigidity of the first fixed plate 201 and the second fixed plate 203 to prevent them from deforming when the deformable member 202 is deformed; at the same time, the anchor plate 204 is detachably connected to the first fixed angle steel 207 and the second fixed angle steel 208 respectively, further preventing the first fixed plate 201 and the second fixed plate 203 from deforming; the anchor plate 204 is connected to the external connector, and while the anchor plate 204 bears the second direction load exerted on the external connector, the second direction load is transferred to the deformable member 202 through the first fixed angle steel 207 and the second fixed angle steel 208 and the first fixed plate 201 and the second fixed plate 203.

[0073] Preferably, the anchor plate 204 is arranged perpendicular to the deformable member 202. The anchor plate 204 can better bear the second-direction load borne by the external connecting member and transfer the load in this direction to the deformable member 202, that is, better transfer and apply the second-direction load borne to the deformable member 202, so that the deformable member 202 bends and deforms, thereby consuming energy to the greatest extent and ensuring the safety of the external connecting member.

[0074] The first fixing angle steel 207, the second fixing angle steel 208 and the first fixing plate 201 are detachably connected by bolts and nuts, the first fixing angle steel 207, the second fixing angle steel 208 and the second fixing plate 203 are detachably connected by bolts and nuts, the first fixing angle steel 207 and the anchor plate 204 are detachably connected by bolts and nuts, and the second fixing angle steel 208 and the anchor plate 204 are detachably connected by bolts and nuts. Of course, the present application can also achieve detachable connection through various methods such as plugging and clamping. For example, a clamping column is fixedly provided on one side of the first fixing plate 201 close to the first fixing angle steel 207, and a clamping hole is opened on the first fixing angle steel 207 that is compatible with the clamping column. The other end of the clamping column is fixed and limited by a nut or other fastener to achieve detachable connection between the first fixing plate 201 and the first fixing angle steel 207. Other detachable connections can also be achieved in this way, or other methods can be selected to achieve detachable connection.

[0075] A prefabricated concrete shear wall device includes the above-mentioned energy-absorbing connection structure, a prefabricated concrete wall and a concrete layer 5, wherein the prefabricated concrete wall is arranged along a first direction, and the first fixing part and the second fixing part are both detachably connected to the prefabricated concrete wall; the concrete layer 5 is fixedly arranged between two adjacent groups of prefabricated walls above and below.

[0076] In this embodiment, the first direction is the vertical direction, and the second direction is the horizontal direction, that is, the assembled concrete walls are arranged up and down, as shown in FIG. Figure 1 The one-to-one correspondence between the upper and lower parts can also be staggered, that is, one prefabricated concrete wall arranged above corresponds to two prefabricated concrete walls arranged below, or two prefabricated concrete walls arranged above correspond to one prefabricated concrete wall arranged below.

[0077] An energy-dissipating connection structure is disposed between upper and lower prefabricated concrete walls, connecting the walls via a first fixing portion and a second fixing portion. When the prefabricated concrete walls are subjected to loads in first and second directions, the first and second energy-dissipating portions deform in the first and second directions, dissipating the energy of the loads in the first and second directions. This self-deformation of the first and second energy-dissipating portions prevents damage to the prefabricated concrete walls.

[0078] The concrete layer 5 is fixedly arranged between the two adjacent groups of prefabricated concrete walls. The concrete layer 5 has compressive strength, which enables it to withstand greater loads and shear forces, significantly improving the bearing capacity and overall stability of the prefabricated shear wall, and can absorb a large amount of energy during the force-bearing process.

[0079] To further optimize the solution, several groups of load transfer elements are fixedly installed inside the prefabricated wall, and the load transfer elements are detachably connected to the first fixing part and the second fixing part; some of the load transfer elements in the two adjacent groups of prefabricated concrete walls are inserted into the concrete layer, and the two load transfer elements overlap. The load transfer elements and the concrete layer 5 organically fix the prefabricated concrete walls arranged above and below, thereby improving the bearing capacity and overall stability of the entire shear wall. At the same time, the load transfer elements are detachably connected to the first fixing part and the second fixing part, and the prefabricated concrete walls arranged above and below, the first energy dissipation part and the first fixing part are organically connected by the load transfer elements, and the prefabricated concrete walls arranged above and below, the second energy dissipation part and the second fixing part are organically connected by the load transfer elements. Preferably, the load transfer elements can be longitudinal bars, reinforcing bars, etc., which can be selected according to needs.

[0080] To further optimize the solution, a pre-embedded single-sided sleeve 205 and a pre-embedded mechanical sleeve 206 are fixedly provided on one side of the anchor plate 204 close to the prefabricated concrete wall. The pre-embedded single-sided sleeve 205 and the pre-embedded mechanical sleeve 206 are arranged in the prefabricated concrete wall; the pre-embedded mechanical sleeve 206 is connected to the load transfer element, and the pre-embedded single-sided sleeve 205 and the pre-embedded mechanical sleeve 206 are both detachably connected to the fixed limiting element. The embedded unilateral sleeve 205 and the embedded mechanical sleeve 206 are both fixedly connected to the anchor plate 204 by welding. When the prefabricated concrete wall is manufactured, the embedded mechanical sleeve 206 is first connected to the load transfer element, and then the anchor plate 204, the embedded unilateral sleeve 205 and the embedded mechanical sleeve 206 are embedded in the prefabricated concrete wall, so that the anchor plate 204, the embedded unilateral sleeve 205, the embedded mechanical sleeve 206 and the prefabricated concrete wall become an integrated structure, and then the first prefabricated concrete wall 3 and the second prefabricated concrete wall 4 are cast. The cast anchor plate 204 can be directly and detachably connected to the fixed limiting element, which is convenient for later installation.

[0081] like Figure 1 The present invention describes a prefabricated concrete shear wall device with a specific scheme. The prefabricated concrete shear wall device includes a first prefabricated concrete wall 3 and a second prefabricated concrete wall 4 arranged one by one in an upper and lower manner. The energy dissipation connection structure includes a first buckling energy dissipation connection component 1, a concrete layer 5 and a second buckling energy dissipation connection component 2. The first buckling energy dissipation connection component 1 and the second buckling energy dissipation connection component 2 are each provided in two groups, and the concrete layer 5 is provided in three groups. The three are arranged in sequence along the horizontal direction, that is, in the order of the first buckling energy dissipation connection component 1, the concrete layer 5, the second buckling energy dissipation connection component 2, the concrete layer 5, the second buckling energy dissipation connection component 2, the concrete layer 5 and the first buckling energy dissipation connection component 1.

[0082] The load transfer elements within the first prefabricated concrete wall 3 include first end longitudinal bars 301, first lap longitudinal bars 302, and first middle longitudinal bars 303. The load transfer elements within the second prefabricated concrete wall 4 include second end longitudinal bars 401, second lap longitudinal bars 402, and second middle longitudinal bars 403. The first end longitudinal bars 301 are arranged on both sides of the first prefabricated concrete wall 3 in the horizontal direction, and the second end longitudinal bars 401 are arranged on both sides of the second prefabricated concrete wall 4 in the horizontal direction. The ends of the first end longitudinal bars 301 pass through the energy-absorbing end plate 104 and are fixed with nuts. The ends of the second end longitudinal bars 401 pass through the restraining end plate 105 and are fixed with nuts. The ends of the first end longitudinal bars 301 and the ends of the second end longitudinal bars 401 are both threaded, and the threads of the longitudinal bars are threadedly connected to the nuts to achieve a detachable connection. The energy-absorbing plate 101, the first restraining plate 103, and the second restraining plate 110 are located in the same plane as the first prefabricated concrete wall 3 and the second prefabricated concrete wall 4.

[0083] One end of the first lap longitudinal bar 302 is disposed within the first prefabricated concrete wall 3 and fixedly connected thereto, while the other end of the first lap longitudinal bar 302 is disposed within the concrete layer 5 and fixedly connected thereto. One end of the second lap longitudinal bar 402 is disposed within the second prefabricated concrete wall 4 and fixedly connected thereto, while the other end of the second lap longitudinal bar 402 is disposed within the concrete layer 5 and fixedly connected thereto. Furthermore, the first lap longitudinal bar 302 and the second lap longitudinal bar 402 are arranged in a one-to-one correspondence and overlap each other. The concrete layer 5 is a UHPC high-strength concrete layer. The overlap length of the first lap longitudinal bar 302 and the second lap longitudinal bar 402 is ten times the diameter of the first lap longitudinal bar 302 or the second lap longitudinal bar 402, thereby connecting the first prefabricated concrete wall 3 and the second prefabricated concrete wall 4 together. Due to the high strength of the UHPC concrete, the prefabricated concrete shear wall connection is more secure.

[0084] The overlap of UHPC high-strength concrete materials improves the overall structural stiffness and ductility. UHPC high-strength concrete has ultra-high compressive strength, which enables it to withstand greater loads and shear forces, significantly improving the bearing capacity and overall stability of the prefabricated shear wall. It can also absorb a large amount of energy during the stress process, showing good ductility and toughness. For prefabricated shear walls under earthquakes, it can provide better anti-collapse ability and deformation coordination ability, and meet the design requirements of the shear wall device.

[0085] The interior 206 of the embedded mechanical sleeve is a step structure, one end of the first central longitudinal reinforcement 303 is arranged in the first prefabricated concrete wall 3 and fixedly connected thereto, and the other end of the first central longitudinal reinforcement 303 is connected to the embedded mechanical sleeve 206; one end of the second central longitudinal reinforcement 403 is arranged in the second prefabricated concrete wall 4 and fixedly connected thereto, and the other end of the second central longitudinal reinforcement 403 is connected to the embedded mechanical sleeve 206; the first fixed angle steel 207, the anchor plate 204 and the embedded single-sided sleeve 205 are detachably connected by bolts, the first fixed angle steel 207, the anchor plate 204 and the embedded mechanical sleeve 206 are detachably connected by bolts, the second fixed angle steel 208, the anchor plate 204 and the embedded single-sided sleeve 205 are detachably connected by bolts, and the second fixed angle steel 208, the anchor plate 204 and the embedded mechanical sleeve 206 are detachably connected by bolts.

[0086] Furthermore, the deformable member 202 and the energy dissipation plate 101 in the present invention can also be connected to the first prefabricated concrete wall 3 and the second prefabricated concrete wall 4 in a different manner than the above-mentioned manner. The first buckling energy dissipation connection assembly 1 and the second buckling energy dissipation connection assembly 2 can be fixed to the first prefabricated concrete wall 3 and the second prefabricated concrete wall 4 by means of detachable fixed connections such as threaded connection, clamping connection or pin connection. When it is necessary to replace the first buckling energy dissipation connection assembly 1 or the second buckling energy dissipation connection assembly of a different type, it is only necessary to remove the constraint plate or the connecting angle steel. Only the deformable member 202 and the energy dissipation plate 101 need to be replaced, without replacing the overall structure formed by the deformable member 202 and the energy dissipation plate 101 or the overall structure formed by the connecting angle steel and the shuttle plate. In other words, the first buckling energy dissipation connection assembly 1 and the second buckling energy dissipation connection assembly 2 in the present invention can meet the shock absorption requirements of different structures by only replacing the deformable member 202 and the energy dissipation plate 101 (that is, the present invention can quickly replace different types of energy dissipation parts). The flexibility of the assembled replaceable energy dissipation parts in the present invention is further improved, the downtime for maintenance is further shortened, and the maintenance cost is further reduced.

[0087] A construction method for an assembled concrete shear wall device based on an energy-dissipating connection structure, the specific steps of which include:

[0088] Step S1: preparing a first buckling energy dissipation connection assembly 1, a second buckling energy dissipation connection assembly 2, a first prefabricated concrete wall 3, and a second prefabricated concrete wall 4 in a factory;

[0089] Step S2: transporting the prefabricated components to the construction site and installing the first prefabricated concrete wall 3 and the second prefabricated concrete wall 4;

[0090] Step S3: placing the second buckling energy dissipation connection assembly 2 between the three points of the first prefabricated concrete wall 3 and the second prefabricated concrete wall 4 and connecting them by bolts;

[0091] Step S4: overlapping the first overlapping longitudinal reinforcement 302 in the first prefabricated concrete wall 3 and the second overlapping longitudinal reinforcement 402 in the second prefabricated concrete wall 4, and forming a mold and pouring UHPC high-strength concrete grouting material into the overlapping part;

[0092] Step S5: The first buckling energy dissipation connection assembly 1 is set at the connection between the first prefabricated concrete wall 3 and the second prefabricated concrete wall 4. The end of the first end longitudinal reinforcement 301 passes through the energy dissipation end plate 104 and is fixed by a nut. The end of the second end longitudinal reinforcement 401 passes through the constraint end plate 105 and is fixed by a nut.

[0093] When a prefabricated shear wall is subjected to a vertical external force, the first buckling energy dissipation connection assembly 1 on one side is subjected to tension, while the first buckling energy dissipation connection assembly 1 on the other end is subjected to compression. The energy dissipation plates 101 on both sides are displaced vertically, with one energy dissipation plate 101 deforming in compression and the other in tension, dissipating energy through deformation. When an earthquake occurs, the shear wall is subjected to a reciprocating load, meaning the first buckling energy dissipation connection assembly 1 is alternately subjected to compression and tension, causing the energy dissipation plates 101 to repeatedly deform, thereby achieving reciprocating energy dissipation. This embodiment provides vertical energy dissipation and self-resetting capabilities through the first buckling energy dissipation connection assemblies 1 arranged on both sides in the horizontal direction, and prevents the concrete at the bottom of both sides from being damaged under tension. Simultaneously, the second buckling energy dissipation connection assembly 2 at the bottom of the three-point point provides sufficient shear bearing capacity for the prefabricated concrete shear wall, ensuring that shear failure will not occur even after the walls on both sides of the shear wall are weakened. This prevents concrete damage at the bottom of both ends of the shear wall when subjected to vibration, effectively improving the energy dissipation capacity of the prefabricated shear wall. The device has the characteristics of reasonable force, simple structure, good earthquake resistance, strong self-reset ability, and small post-earthquake damage. However, it should be noted that the modular buckling energy dissipation member and the fusiform plate connector in the present invention are not limited to being installed on buildings.

[0094] This embodiment, by installing a replaceable second buckling energy dissipation connection assembly 2 at the three-point point of the prefabricated concrete shear wall and the first buckling energy dissipation connection assembly 1 at the end, improves the shear bearing capacity and energy dissipation capacity of the entire shear wall under reciprocating loads, effectively reducing damage to the components. Damaged deformable parts 202 and energy dissipation plates 101 can also be replaced after an earthquake. Effectively restoring functionality after an earthquake without requiring repair or with minimal repair is a current research hotspot and future development trend in earthquake engineering. This structure features reasonable force, simple construction, high bearing capacity, efficient energy dissipation, and recoverable post-earthquake functionality. It effectively reduces shock for various structures without dismantling the entire shear wall.

[0095] It should be noted that "replaceable" in the present invention means that under the action of an earthquake, the energy dissipation plate 101 in the first buckling energy dissipation connection assembly 1 and the deformable member 202 in the second buckling energy dissipation connection assembly 2 will deform under repeated loads, and the purpose of replaceability can be achieved by replacing the deformable member 202 and the energy dissipation plate 101.

[0096] The description of the above embodiments is only used to help understand the method of this application and its core idea; at the same time, for those skilled in the art, according to the idea of ​​this application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

[0097] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0098] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0099] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An energy-consuming connection structure, characterized in that: include: a first energy-consuming portion, wherein when the first energy-consuming portion is subjected to a load in a first direction, the first energy-consuming portion deforms to consume the energy of the load in the first direction; a second energy absorbing portion, wherein when the second energy absorbing portion is subjected to a load in a second direction, the second energy absorbing portion deforms to dissipate the energy of the load in the second direction; a first fixing portion, the first fixing portion being detachably connected to the first energy-consuming portion, the first fixing portion being used to control the deformation of the first energy-consuming portion along a first direction, and the first fixing portion being detachably connected to an external connecting body; a second fixing portion, the second fixing portion being detachably connected to the second energy consuming portion, the second fixing portion being used to control the deformation of the second energy consuming portion along a second direction, and the second fixing portion being detachably connected to the external connecting body; The first direction and the second direction are perpendicular to each other, and the first energy consuming part and the second energy consuming part are arranged along the second direction; The first energy dissipation part is an energy dissipation plate (101), and the energy dissipation plate (101) is provided with bending grooves (102) on both sides in the second direction, and the bending grooves (102) are used to reduce the rigidity of the deformation area of ​​the energy dissipation plate (101); the first fixing part comprises a first constraint plate (103) and a second constraint plate (110) arranged in parallel and at intervals, and the energy dissipation plate (101) is arranged between the first constraint plate (103) and the second constraint plate (110) and is detachably connected thereto; One end of the energy dissipation plate (101) in the first direction is fixedly connected to an energy dissipation end plate (104), and the other end of the energy dissipation plate (101) in the first direction is detachably connected to the first constraint plate (103) and the second constraint plate (110); the other ends of the first constraint plate (103) and the second constraint plate (110) in the first direction are fixedly connected to a constraint end plate (105); the energy dissipation end plate (104) and the constraint end plate (105) are both detachably connected to an external connector, and the energy dissipation end plate (104) and the constraint end plate (105) are used to apply a first direction load to the energy dissipation plate (101); The energy dissipation plate (101) is provided with an oblong hole (106), the oblong hole (106) being arranged along a first direction, a sliding rod (107) being slidably arranged in the oblong hole (106), and two ends of the sliding rod (107) being detachably connected to the first constraint plate (103) and the second constraint plate (110), respectively; The second energy dissipation portion comprises a first fixing plate (201), a second fixing plate (203), and a plurality of deformable members (202) fixedly arranged between the first fixing plate (201) and the second fixing plate (203), wherein the cross-sectional areas at both ends of the deformable members (202) are larger than the cross-sectional area in the middle, and the plurality of deformable members (202) are arranged at intervals, and the first fixing plate (201) and the second fixing plate (203) are respectively detachably connected to the second fixing portion; The second fixing portion comprises a fixed limiting element, the fixed limiting element is detachably connected to the first fixing plate (201) and the second fixing plate (203), the fixed limiting element is used to limit the deformation of the first fixing plate (201) and the second fixing plate (203), and the fixed limiting element is detachably connected to the external connecting body; The fixed limiting element comprises a first fixed angle steel (207) and a second fixed angle steel (208), wherein the first fixed angle steel (207) and the second fixed angle steel (208) are arranged on both sides of the first fixed plate (201) and the second fixed plate (203) and are detachably connected thereto, and an anchor plate (204) is arranged on one side of the first fixed angle steel (207) and the second fixed angle steel (208) close to the external connector, and the anchor plate (204) is detachably connected to the first fixed angle steel (207) and the second fixed angle steel (208), respectively, and the anchor plate (204) is connected to the external connector.

2. An assembled concrete shear wall device, characterized in that: include: The energy dissipation connection structure according to claim 1; An assembled concrete wall, wherein the assembled concrete wall is arranged along a first direction, and the first fixing portion and the second fixing portion are both detachably connected to the assembled concrete wall; A concrete layer (5), wherein the concrete layer (5) is fixedly arranged between two upper and lower adjacent groups of the assembled concrete walls.

3. The assembled concrete shear wall device according to claim 2, characterized in that: Several groups of load transfer elements are fixedly installed inside the prefabricated concrete wall, and the load transfer elements are detachably connected to the first fixing part and the second fixing part; some of the load transfer elements in the two adjacent groups of prefabricated concrete walls are inserted into the concrete layer, and two load transfer elements are overlapped.

4. The assembled concrete shear wall device according to claim 3, characterized in that: A pre-embedded single-sided sleeve (205) and a pre-embedded mechanical sleeve (206) are fixedly provided on one side of the anchor plate (204) close to the assembled concrete wall; the pre-embedded single-sided sleeve (205) and the pre-embedded mechanical sleeve (206) are arranged in the assembled concrete wall; the pre-embedded mechanical sleeve (206) is connected to the load transfer element, and the pre-embedded single-sided sleeve (205) and the pre-embedded mechanical sleeve (206) are both detachably connected to the fixed limiting element.

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