A self-resetting steel plate shear wall building structure

Abstract

The present invention discloses a self-resetting steel plate shear wall building structure, comprising a bottom foundation, a floor frame arranged on the bottom foundation, a self-resetting steel plate shear wall lateral resistance unit, and a first connector for connecting the self-resetting steel plate shear wall lateral resistance unit and a floor slab; the self-resetting steel plate shear wall lateral resistance unit comprises a steel plate shear wall, a second column component and a second beam component; the self-resetting steel plate shear wall lateral resistance unit is symmetrically arranged in the floor frame; the floor slab is rigidly connected to the floor frame and the second beam component, and a first gap is arranged between the floor slab and the second column component; the first connector is connected to the bottom of the floor slab, and the two ends of the first connector are respectively connected to the second beam component and the first beam component of the floor frame. When subjected to an earthquake, the floor slab works in coordination with the floor frame and the first connector at the bottom of the floor slab, which can avoid cracking of the floor slab or damage of the first connector, thereby effectively, reasonably and damage-freely transmitting the horizontal inertial force to the self-resetting steel plate shear wall lateral resistance unit.

Description

Technical Field

[0001] The invention belongs to the technical field of earthquake prevention and disaster reduction of building structures, and in particular relates to a self-resetting steel plate shear wall building structure. Background Art

[0002] The frame-steel plate shear wall structure is a building structure system that mainly uses steel plate shear walls to bear horizontal loads. Among them, the steel plate shear wall is formed by embedding steel plates on the basis of the frame composed of horizontal edge members and vertical edge members. However, the beam-column joints of this structure adopt a rigid connection form, and the corresponding failure mode includes the formation of plastic hinges at the beam ends and column bases. Therefore, when the structure is subjected to earthquake action, the damage to the components and the residual deformation will make the structure difficult to repair, or even impossible to repair.

[0003] The self-resetting structure is a new structural design concept that aims to reduce the residual deformation of building structures after an earthquake. The difference between this type of structure and the above-mentioned frame-steel plate shear wall structure and other traditional structures is that the swaying of the components in the lateral resistance system will cause the vertical components to move sideways asynchronously, so the force transmission path of the structure needs to be redesigned, which makes the lateral resistance system, inertial force transmission system, and vertical load-bearing system design of the traditional structure not suitable for the self-resetting structure. However, the existing self-resetting structure design did not take the above factors into consideration. For example, in the self-resetting shear wall hybrid structure, the frame and shear wall are connected by plate hinges, and the frame part uses cast-in-place rigid joints. Under the action of an earthquake, the cast-in-place joints will be destroyed due to the action of the plate hinges. In addition, these structures do not propose layout ideas for large-scale building structures. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a self-resetting steel plate shear wall building structure to solve the problem that the rigid connection between the existing building frame and the shear wall makes the nodes easily damaged during an earthquake.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0006] A self-resetting steel plate shear wall building structure, comprising a bottom foundation, a floor frame arranged on the bottom foundation, a self-resetting steel plate shear wall lateral resistance unit, and a first connecting member for connecting the self-resetting steel plate shear wall lateral resistance unit with a floor slab; the floor frame comprises a first beam component and a first column component; the self-resetting steel plate shear wall lateral resistance unit comprises a steel plate shear wall, a second column component and a second beam component;

[0007] The self-resetting steel plate shear wall lateral resistance unit is symmetrically arranged in the floor frame; the floor slab is rigidly connected to the floor frame and the second beam component, and a first gap is arranged between the floor slab and the second column component; the first connecting member is connected to the bottom of the floor slab, and the two ends of the first connecting member are respectively connected to the second beam component and the first beam component of the floor frame.

[0008] Specifically, the self-resetting steel plate shear wall lateral resistance unit includes multiple steel plate shear walls, multiple second beam components, two second column components, horizontal prestressed tendons and vertical prestressed tendons. The multiple second beam components are arranged in sequence along the length direction of the second column component, and the second beam components and the second column components are movably connected; the steel plate shear wall is arranged in a frame formed by the second beam components and the second column components; the second column components are provided with first holes for the horizontal prestressed tendons to pass through, and the horizontal prestressed tendons are symmetrically arranged on both sides of each second beam component; the vertical prestressed tendons are symmetrically arranged on both sides of the second column component, and the two ends of each vertical prestressed tendon are respectively tied to the second column component and the bottom foundation.

[0009] Furthermore, second connecting members are provided on both sides of the second column member, and the second connecting members include two shear plates, which are connected to the second column member in parallel with each other, and a second gap is provided between the two shear plates for inserting the web of the second beam member or the web of the first beam member in the floor frame; circular holes are provided on the shear plates, and oblong holes corresponding to the positions of the circular holes are provided on the web of the second beam member and the web of the beam in the floor frame.

[0010] Furthermore, a third gap is provided between the end of the first beam component and the second column component.

[0011] Specifically, the second column member is provided with a vertical prestressed tendon connector near the bottom foundation, and the vertical prestressed tendon connector and the bottom foundation are respectively provided with a second hole and a third hole through which the two ends of the vertical prestressed tendon pass.

[0012] Specifically, the second column component in the self-resetting steel plate shear wall lateral resistance unit and the first column component in the floor frame are steel components, reinforced concrete components or composite components.

[0013] Preferably, the first connecting member is a truss.

[0014] Specifically, the bottom foundation includes a first bottom foundation arranged at the bottom of the self-resetting steel plate shear wall lateral resistance unit and a second bottom foundation arranged at the bottom of the first column component of the floor frame; the first bottom foundation includes two first bases and a connecting beam connected between the two first bases, and the first base is provided with a shear key for bearing the shear force at the column end; the second bottom foundation includes a second base and a socket arranged on the second base for inserting the first column component.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The floor slab in the present invention is a continuous floor slab rigidly connected to the floor frame. The floor slab is not connected to the second column member of the self-resetting steel plate shear wall lateral resistance unit. When subjected to an earthquake, the floor slab works in coordination with the floor frame and the first connecting member at the bottom of the floor slab to avoid cracking of the floor slab and damage to the second beam member or the first connecting member, thereby effectively, reasonably and damage-freely transmitting the horizontal inertial force to the self-resetting steel plate shear wall lateral resistance unit. After an earthquake, the building structure can automatically return to its initial position to ensure that the use function of the structure is not interrupted or the use function is quickly restored.

[0017] (2) The steel plate shear wall in the self-resetting steel plate shear wall lateral resistance unit of the present invention is connected to the second beam component and the second column component by bolts, so that the repair work of the structure can be completed quickly.

[0018] (3) The bottom foundation of the present invention is connected to the first column member in a socket connection form, which can enhance the anti-collapse ability of the structure and thus improve the feasibility of the performance-based design of the structure.

[0019] (4) The self-resetting steel plate shear wall lateral resistance units and connectors of the present invention can be arranged around or inside the building frame structure according to the functional requirements of the building; according to the site conditions and building plan, multiple self-resetting steel plate shear wall building structures can be combined into a group building by using velocity dampers or self-resetting supports, thereby realizing unconventional structural plan layout.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is an overall schematic diagram of a self-resetting steel plate shear wall building structure according to an embodiment of the present invention.

[0022] Figure 2 This is a partial disassembly diagram of the self-resetting steel plate shear wall building structure recorded in an embodiment of the present invention.

[0023] Figure 3 The figure is a top view of a self-resetting steel plate shear wall building structure according to an embodiment of the present invention.

[0024] Figure 4 The present invention is a schematic diagram of the connection between the building frame, the first connecting member, and the self-resetting steel plate shear wall lateral resistance unit according to an embodiment of the present invention.

[0025] Figure 5 This is a disassembly diagram of the self-resetting steel plate shear wall lateral resistance unit and part of the floor frame recorded in an embodiment of the present invention.

[0026] Figure 6 The present invention is a schematic diagram of the connection between the beam-column nodes of the self-resetting steel plate shear wall lateral resistance unit according to an embodiment of the present invention.

[0027] Figure 7 This is a disassembly diagram of the beam-column node of the self-resetting steel plate shear wall lateral resistance unit recorded in an embodiment of the present invention.

[0028] Figure 8 This is a disassembly diagram of the column base node between the self-resetting steel plate shear wall lateral resistance unit and the bottom foundation recorded in an embodiment of the present invention.

[0029] The symbols in the figure represent:

[0030] 1- bottom foundation, 2- floor frame, 3- self-resetting steel plate shear wall lateral resistance unit, 4- first connection member, 5- floor slab, 6- first gap, 7- third gap, 8- velocity damper or self-resetting support;

[0031] 11- first bottom foundation, 12- second bottom foundation;

[0032] 111-first base, 112-connecting beam, 113-shear key, 114-third hole;

[0033] 121-second base, 122-socket;

[0034] 21-first beam member, 22-first column member;

[0035] 31-steel plate shear wall, 32-second column member, 33-second beam member, 34-horizontal prestressed tendons, 35-vertical prestressed tendons, 36-second connecting piece, 37-long circular hole, 38-vertical prestressed tendon connecting piece;

[0036] 321 - first hole; 361 - shear plate, 362 - second gap, 363 - circular hole; 381 - second hole.

[0037] The specific contents of the present invention are further explained in detail below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0038] The specific implementation methods of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0039] In the present invention, unless otherwise specified, directional words such as "upper, lower, bottom, top" are generally defined based on the drawings of the corresponding figures, and "inside and outside" refer to the inside and outside of the corresponding component outline.

[0040] like Figure 1As shown, a specific embodiment of the present invention discloses a self-resetting steel plate shear wall building structure, including a bottom foundation 1, a floor frame 2 arranged on the bottom foundation 1, a self-resetting steel plate shear wall lateral resistance unit 3 and a first connecting member 4 for connecting the self-resetting steel plate shear wall lateral resistance unit 3 and a floor 5, and the first connecting member 4 is used to transmit the floor inertia force to the self-resetting steel plate shear wall lateral resistance unit 3.

[0041] The building frame 2 includes a first beam component 21 and a first column component 22 , and the self-resetting steel plate shear wall lateral resistance unit 3 includes at least a steel plate shear wall 31 , a second column component 32 and a second beam component 33 .

[0042] like Figure 3 As shown, the self-resetting steel plate shear wall lateral resistance unit 3 is symmetrically arranged in the floor frame 2. The floor slab 5 is rigidly connected to the floor frame 2 and the second beam member 33. The rigid connection in this embodiment is specifically welding or bolting. A first gap 6 is provided between the floor slab 5 and the second column member 32. The first connecting member 4 is connected to the bottom of the floor slab 5, and the two ends of the first connecting member 4 are respectively connected to the second beam member 33 and the first beam member 21 of the floor frame.

[0043] The floor 5 in this embodiment is a continuous floor, which is rigidly connected to the floor frame 2, and is not connected to the second column member 32 of the self-resetting steel plate shear wall lateral resistance unit 3. When subjected to an earthquake, the floor 5 works in coordination with the floor frame 2 and the first connecting member to avoid cracking of the floor, damage to the second beam member or the first connecting member, thereby effectively, reasonably and damage-freely transmitting the horizontal inertial force to the self-resetting steel plate shear wall lateral resistance unit. After an earthquake, the building structure can automatically return to its initial position to ensure that the use function of the structure is not interrupted or quickly restored.

[0044] As a specific embodiment of the present invention, the first connecting member 4 of this embodiment is a truss, such as Figure 4 As shown in the figure, the truss is connected parallel to the floor slab. In actual use, the structural form of the truss can be adjusted as needed.

[0045] As a specific embodiment of the present invention, Figures 5 to 7 As shown, the self-resetting steel plate shear wall lateral resistance unit 3 includes a plurality of steel plate shear walls 31, a plurality of second beam components 33, two second column components 32, horizontal prestressed tendons 34 and vertical prestressed tendons 35. The plurality of second beam components 33 are sequentially arranged along the length direction of the second column component 32.

[0046] The second beam member 33 is movably connected to the second column members 32 on both sides. Specifically, Figure 7As shown, the second column member 32 is provided with a second connecting member 36 on both sides, and the second connecting member 36 includes two shear plates 361, which are connected to the second column member 32 in parallel, and a second gap 362 is provided between the two shear plates 361 for the web of the second beam member 33 or the web of the first beam member 21 in the floor frame to be inserted. A circular hole 363 is provided on the shear plate 361, and an oblong hole 37 corresponding to the position of the circular hole 363 is provided on the web of the second beam member 33 and the web of the first beam member 21 in the floor frame. The circular hole 363 and the oblong hole 37 are connected by bolts to connect the second column member 32 with the second beam member 33 and the first beam member 21. When the connection node rotates, on the one hand, the length of the horizontal prestressed tendons 34 can be increased to form non-stable potential energy and provide self-reset capability, and on the other hand, the damage caused by the collision between the second column member 32 and the floor 5 and the first beam member 21 can be avoided.

[0047] When the node is connected, a third gap 7 is provided between the end of the first beam member 21 and the second column member 32, such as Figure 6 Under the action of an earthquake, the second column member 32 will sway, and the setting of the third gap 7 can prevent the second column member 32 from colliding with the first beam member 21, thereby ensuring that the second column member 32 or the first beam member 21 is not damaged.

[0048] The steel plate shear wall 31 is embedded in the frame formed by the second beam component 33 and the second column component 32. Specifically, the steel plate shear wall 31 and the second beam component 33 and the second column component 32 are connected by welding or bolting. When the steel plate shear wall 31 and the second beam component 33 and the second column component 32 are connected by bolts, the structural repair work can be completed quickly.

[0049] The steel plate shear wall 31 of the present embodiment includes, but is not limited to, a thin steel plate shear wall, a slotted steel plate shear wall, a stiffened steel plate shear wall, a dense-ribbed grid steel plate shear wall, an anti-buckling steel plate shear wall, and the like.

[0050] like Figure 7 As shown, the two second column components 32 are provided with first holes 321 for the horizontal prestressed tendons 34 to pass through, and each second beam component 33 is symmetrically provided with horizontal prestressed tendons 34 on both sides.

[0051] like Figure 8As shown, the vertical prestressed tendons 35 are symmetrically arranged on both sides of the second column member 32, and the two ends of each vertical prestressed tendon 35 are tied to the second column member 32 and the bottom foundation 1 respectively. Specifically, the second column member 32 is provided with a vertical prestressed tendon connector 38 near the bottom foundation 1. Specifically, the vertical prestressed tendon connector 38 is welded to the second column member 32, and the vertical prestressed tendon connector 38 is a corbel structure. The vertical prestressed tendon connector 38 and the bottom foundation 1 are respectively provided with a second hole 381 and a third hole 114 through which the two ends of the vertical prestressed tendon 35 pass, wherein the third hole 114 is provided on the first base 111.

[0052] The horizontal prestressed tendons 34 and vertical prestressed tendons 35 used in this embodiment include but are not limited to steel strands, precision-rolled threaded steel bars, and the like.

[0053] The first column member 22 and the second column member 32 used in this embodiment include but are not limited to steel members, reinforced concrete members, composite members, etc.

[0054] As a specific embodiment of the present invention, Figure 5 As shown, the bottom foundation 1 includes a first bottom foundation 11 arranged at the bottom of the self-resetting steel plate shear wall lateral resistance unit 3 and a second bottom foundation 12 arranged at the bottom of the first column member 22 of the floor frame 2.

[0055] The first bottom foundation 11 includes two first bases 111 and a connecting beam 112 connected between the two first bases 111. Preferably, the first base 111 and the connecting beam 112 are integrally processed. A shear key 113 for bearing the shear force at the end of the second column member 32 is fixed on the first base 111. Figure 8 As shown, the shear keys 113 are symmetrically arranged on both sides of the second column member 32 to prevent the second column member 32 from moving horizontally.

[0056] The second bottom foundation 12 includes a second base 121 and a socket 122 disposed on the second base 121 for inserting the first column member 22 . This connection form can enhance the anti-collapse capability of the structure, thereby improving the feasibility of performance-based design of the structure.

[0057] like Figure 1 As shown in the partial enlarged view of FIG. 1 , the present invention can also combine multiple self-resetting steel plate shear wall building structures into a group building by using velocity dampers or self-resetting supports 8 according to site conditions and building plans, thereby realizing an unconventional structural plan layout. In this way, a larger building can be formed, and multiple single buildings can be connected together to form a lateral displacement coordination relationship to jointly resist earthquake effects.

[0058] In the above description, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integrated connection; it can be a direct connection or an indirect connection, etc. For ordinary technicians in this field, the specific meanings of the above terms in this technical solution can be understood according to specific circumstances.

[0059] The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A self-resetting steel plate shear wall building structure, comprising a bottom foundation (1) and a building frame (2) arranged on the bottom foundation (1), wherein the building frame (2) comprises a first beam member (21) and a first column member (22), characterized in that: It also includes a self-resetting steel plate shear wall lateral resistance unit (3) and a first connecting member (4) for connecting the self-resetting steel plate shear wall lateral resistance unit (3) and a floor slab (5); the self-resetting steel plate shear wall lateral resistance unit (3) includes a steel plate shear wall (31), a second column member (32) and a second beam member (33); The self-resetting steel plate shear wall lateral resistance unit (3) is symmetrically arranged in the floor frame (2); the floor slab (5) is rigidly connected to the floor frame (2) and the second beam member (33), and a first gap (6) is arranged between the floor slab (5) and the second column member (32); the first connecting member (4) is connected to the bottom of the floor slab (5), and the two ends of the first connecting member (4) are respectively connected to the second beam member (33) and the first beam member (21) of the floor frame.

2. The self-resetting steel plate shear wall building structure according to claim 1, characterized in that: The self-resetting steel plate shear wall lateral resistance unit (3) comprises a plurality of steel plate shear walls (31), a plurality of second beam components (33), two second column components (32), horizontal prestressed tendons (34) and vertical prestressed tendons (35); the plurality of second beam components (33) are arranged in sequence along the length direction of the second column component (32); the second beam components (33) and the second column component (32) are movably connected; the steel plate shear wall (31) is arranged in a frame formed by the second beam components (33) and the second column components (32); The second column member (32) is provided with a first hole (321) for the horizontal prestressed tendons (34) to pass through, and the horizontal prestressed tendons (34) are symmetrically arranged on both sides of each second beam member (33); the vertical prestressed tendons (35) are symmetrically arranged on both sides of the second column member (32), and the two ends of each vertical prestressed tendon (35) are respectively tied to the second column member (32) and the bottom foundation (1).

3. The self-resetting steel plate shear wall building structure according to claim 2, characterized in that: Second connecting members (36) are provided on both sides of the second column member (32), and the second connecting members (36) include two shear plates (361), which are connected to the second column member (32) in parallel with each other, and a second gap (362) is provided between the two shear plates (361) for inserting the web of the second beam member (33) or the web of the first beam member (21) in the floor frame; a circular hole (363) is provided on the shear plate (361), and an oblong hole (37) corresponding to the position of the circular hole (363) is provided on the web of the second beam member (33) and the web of the first beam member (21) in the floor frame.

4. The self-resetting steel plate shear wall building structure according to claim 2, characterized in that: A third gap (7) is provided between the end of the first beam component (21) and the second column component (32).

5. The self-resetting steel plate shear wall building structure according to claim 2, characterized in that: The second column member (32) is provided with a vertical prestressed tendon connector (38) near the bottom foundation (1), and the vertical prestressed tendon connector (38) and the bottom foundation (1) are respectively provided with a second hole (381) and a third hole (114) through which the two ends of the vertical prestressed tendon (35) pass.

6. The self-resetting steel plate shear wall building structure according to any one of claims 1 to 5, characterized in that: The second column component (32) in the self-resetting steel plate shear wall lateral resistance unit (3) and the first column component (22) in the floor frame (2) are steel components, reinforced concrete components or composite components.

7. The self-resetting steel plate shear wall building structure according to claim 1, characterized in that: The first connecting member (4) is a truss.

8. The self-resetting steel plate shear wall building structure according to claim 1, characterized in that: The bottom foundation (1) comprises a first bottom foundation (11) arranged at the bottom of the self-resetting steel plate shear wall lateral resistance unit (3) and a second bottom foundation (12) arranged at the bottom of the first column member (22) of the building frame (2); The first bottom foundation (11) comprises two first bases (111) and a connecting beam (112) connected between the two first bases (111); the first bases (111) are provided with a shear key (113) for bearing the shear force at the end of the second column member (32); The second bottom foundation (12) comprises a second base (121) and a socket (122) arranged on the second base (121) for inserting the first column member (22).

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