Energy dissipation supporting wall and manufacturing method and using method thereof

Abstract

The invention relates to the technical field of building structures, and discloses an energy dissipation supporting wall and a manufacturing method and a using method thereof. The multiple energy dissipation steel plates are arranged between the two layers of reinforcing meshes and surround the force transmission steel plates, one ends of the energy dissipation steel plates extend out of the prestressed concrete wall and are connected with the steel frame, and the other ends of the energy dissipation steel plates are connected with the force transmission steel plates through force transmission reinforcing steel bars. The hollow steel pipe is arranged on the outer side of the energy dissipation steel plate in a sleeving mode, a gap or non-bonding materials are filled between the hollow steel pipe and the energy dissipation steel plate, and the energy dissipation steel plate can stretch out and draw back in the length direction of the hollow steel pipe when stressed. When a horizontal load acts on the wall body, force is transmitted to the energy dissipation steel plate through the steel frame, and the energy dissipation steel plate is sleeved with the hollow steel pipe, so that the energy dissipation steel plate can stretch out and draw back and deform to disperse the load into the force transmission steel bars, the force transmission steel plate and concrete of the prestressed concrete wall, and then the load is dissipated.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and in particular to an energy-dissipating support wall and its manufacturing and usage methods. Background Technology

[0002] Steel frame structures are widely used in multi-story and high-rise buildings due to their advantages such as light weight, high strength, flexible spatial arrangement, and fast construction speed. However, steel frame structures have the problem of low lateral stiffness and large inter-story displacement under horizontal forces such as wind loads or earthquakes. To solve this problem, current engineering practices often adopt the method of adding central bracing or eccentric bracing lateral force resisting members to form a frame-braced structure, or setting up lateral force resisting members such as steel plate shear walls or concrete shear walls to form a frame-shear wall structure.

[0003] However, frame-braced and frame-shear wall structures still have many drawbacks. For example, frame-braced structures require a large amount of steel, the braces are prone to buckling under compression, and the bracing structure conflicts with the location of building partition walls, affecting partition wall installation. Although frame-shear wall structures can effectively improve structural stiffness, the cooperative performance between the shear wall and the steel frame is poor, and the deformation capacity of the shear wall is mismatched with that of the steel frame. Under strong earthquake conditions, brittle shear failure is likely to occur, which is difficult to repair after damage, and the residual deformation is large, affecting post-earthquake functional recovery.

[0004] In view of this, how to provide a steel frame structure that can overcome the above-mentioned defects is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-dissipating support wall and its manufacturing and usage methods to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides an energy-dissipating support wall, comprising:

[0007] A prestressed concrete wall with two layers of steel mesh inside, the steel mesh including at least one prestressed steel bar arranged in one direction;

[0008] Force-transmitting steel plates are arranged between two layers of steel mesh;

[0009] Multiple energy-dissipating steel plates are arranged between two layers of steel mesh and around the force-transmitting steel plate. One end of the energy-dissipating steel plate extends beyond the prestressed concrete wall and is connected to the steel frame, while the other end is connected to the force-transmitting steel plate through force-transmitting steel bars.

[0010] A hollow steel pipe is sleeved on the outside of the energy-consuming steel plate. There is a gap between the hollow steel pipe and the energy-consuming steel plate or it is filled with a non-adhesive material. When the energy-consuming steel plate is subjected to force, it can expand and contract along the length of the hollow steel pipe.

[0011] Furthermore, it also includes:

[0012] Tie bars are used to bind two layers of steel mesh and force-transfer steel bars to form a steel cage structure.

[0013] Furthermore, the force-transmitting steel plate is arranged at the geometric center of the prestressed concrete wall.

[0014] Furthermore, the steel mesh is composed of longitudinally arranged prestressed steel bars and transversely arranged prestressed steel bars.

[0015] Furthermore, the longitudinal prestressed steel bars and the transverse prestressed steel bars are arranged orthogonally or obliquely.

[0016] Furthermore, the width at both ends of the energy-consuming steel plate is greater than the width in the middle.

[0017] Furthermore, the hollow steel pipe has a plate-shaped structure with through holes on its front and rear surfaces.

[0018] This invention also provides a method for manufacturing an energy-dissipating support wall, comprising the following steps:

[0019] S1: The energy-consuming steel plate and the force-transmitting steel plate are connected by force-transmitting steel bars to form a support assembly;

[0020] S2: Arrange concrete pouring formwork on the concrete wall support formwork, arrange the first layer of steel mesh on the concrete pouring formwork, install the support components on the first layer of steel mesh, sleeve the hollow steel pipe on the outside of the energy dissipation steel plate, and arrange the second layer of steel mesh above the support components; tie the two layers of steel mesh and the force transmission steel bars with tie bars to form a steel cage structure.

[0021] S3: Tensioned steel mesh;

[0022] S4: Pour concrete into the concrete pouring formwork, and after curing, remove the formwork to obtain the energy-dissipating support wall.

[0023] This invention also provides a method for using an energy-dissipating support wall, which includes the following steps:

[0024] A1: After the steel frame construction is completed, place the energy-dissipating support wall on the floor slab inside the steel frame;

[0025] A2: Weld or bolt one end of the energy-consuming steel plate to the beam-column joint of the steel frame or the stiffening rib of the flange of the steel frame beam;

[0026] A3: The energy-dissipating support wall is connected to the steel frame by multiple deformable connectors;

[0027] A4: Fill the gap between the energy-dissipating support wall and the steel frame with flexible sealing material.

[0028] Furthermore, the energy-consuming support wall is divided into two symmetrical support wall panels, which are connected by inter-panel connecting plates.

[0029] The present invention discloses the following technical effects:

[0030] 1. A force-transmitting steel plate and multiple energy-dissipating steel plates are arranged within a prestressed concrete wall. One end of the energy-dissipating steel plate extends beyond the prestressed concrete wall and connects to a steel frame, while the other end is connected to the force-transmitting steel plate via force-transmitting reinforcing bars. When a horizontal load is applied to the wall, the force is transmitted to the energy-dissipating steel plate through the steel frame. Because the energy-dissipating steel plate is encased in a hollow steel pipe, it can expand, contract, and deform to distribute the load to the force-transmitting reinforcing bars, the force-transmitting steel plate, and the concrete of the prestressed concrete wall, thereby dissipating the load. Compared with existing technologies, the energy-dissipating steel plate and other structures in this invention are located within the prestressed concrete wall, do not conflict with the location of building partition walls, and also function as partition walls. Furthermore, the concrete of the prestressed concrete wall participates in load dissipation, significantly reducing steel consumption and lowering manufacturing costs.

[0031] 2. The wall panels are made of prestressed concrete, and the steel frame is integrated with the prestressed concrete wall, which solves the problem of mismatch between the deformation of the concrete wall and the steel frame, and can also reduce the damage of the concrete wall panels under seismic action.

[0032] 3. The force-transmitting steel plate, energy-dissipating steel plate, and force-transmitting reinforcing bars are arranged between two layers of steel mesh, and the two layers of steel mesh and force-transmitting reinforcing bars are tied together to form a steel cage structure, which can effectively improve the buckling restraint capacity and reduce the amount of steel used in the buckling restraint components.

[0033] 4. One end of the energy-dissipating steel plate is connected to the beam-column joint of the steel frame or the stiffening rib of the flange of the steel frame beam, that is, connected at the corner of the steel frame. This restricts the formation and development of plastic yielding to the corner of the steel frame, effectively protecting the overall structure from large-scale irreversible damage. It realizes the control of the damage and deformation location of the steel frame structure, and facilitates replacement and repair after being subjected to extreme horizontal loads such as earthquakes. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a planar schematic diagram of the present invention;

[0036] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0037] Figure 3 This is a schematic diagram of the supporting components;

[0038] Figure 4 This is a schematic diagram illustrating the working principle of the present invention;

[0039] Figure 5 This is a side view of the present invention;

[0040] Figure 6 This is a schematic diagram of the connection of the force-transmitting reinforcing bars;

[0041] Figure 7 A schematic diagram of the fabrication of unidirectional prestressed orthogonal steel mesh;

[0042] Figure 8 A schematic diagram of the fabrication of a two-way prestressed orthogonal steel mesh;

[0043] Figure 9 A schematic diagram of the fabrication of a unidirectional prestressed oblique steel mesh;

[0044] Figure 10 Schematic diagram of the fabrication of bidirectional prestressed oblique steel mesh;

[0045] Figure 11 This is a schematic diagram showing the horizontal splicing and installation of two supporting walls.

[0046] Figure 12 This is a schematic diagram illustrating the installation of a support wall containing dual support components.

[0047] Figure 13 This is a schematic diagram showing the vertical splicing and installation of two supporting wall panels;

[0048] Figure 14 A schematic diagram illustrating the use and installation of a V-shaped support wall;

[0049] Figure 15 A schematic diagram showing the vertical splicing and installation of two V-shaped support wall panels;

[0050] The components include: 1. Steel frame; 2. Reinforcing ribs; 3. Prestressed concrete wall; 4. Energy-dissipating steel plate; 5. Hollow steel pipe; 6. Transverse prestressed steel bars; 7. Longitudinal prestressed steel bars; 8. Tie bars; 9. Force-transferring steel bars; 10. Force-transferring steel plate; 11. Prestressing tensioning formwork; 12. Concrete wall fabrication formwork; 13. Unidirectional prestressed orthogonal concrete casting formwork; 14. Bidirectional prestressed orthogonal concrete casting formwork; 15. Unidirectional prestressed oblique concrete casting formwork; 16. Bidirectional prestressed oblique concrete casting formwork; 17. Direct unloading area; 18. Indirect unloading area; 19. Welds; 20. Connectors; 21. Inter-slab connecting plates. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] like Figures 1 to 15 This invention provides an energy-dissipating support wall, comprising:

[0054] The prestressed concrete wall 3 has two layers of steel mesh inside, the steel mesh includes prestressed steel bars arranged in at least one direction, and is made of high-strength concrete.

[0055] Force transmission steel plate 10 is arranged between two layers of steel mesh, and force transmission steel plate 10 is made of low yield point steel.

[0056] Multiple energy-dissipating steel plates 4 are arranged between two layers of steel mesh and around the force-transmitting steel plate 10. One end of the energy-dissipating steel plate 4 extends beyond the prestressed concrete wall 3 and is connected to the steel frame 1, while the other end is connected to the force-transmitting steel plate 10 through the force-transmitting steel bar 9.

[0057] Hollow steel pipe 5 is sleeved on the outside of energy-consuming steel plate 4. There is a gap between hollow steel pipe 5 and energy-consuming steel plate 4 or it is filled with non-adhesive material. When energy-consuming steel plate 4 is subjected to force, it can expand and contract along the length of hollow steel pipe 5, forming a non-adhesive interface with the surrounding concrete. Under the action of tension and pressure, it yields and consumes energy.

[0058] In this embodiment, it also includes:

[0059] Tie bar 8 binds the two layers of steel mesh and force-transfer steel bar 9 to form a steel cage structure, which can effectively enhance the integrity and strength of the internal skeleton of the structure.

[0060] In this embodiment, the force-transmitting steel plate 10 is arranged at the geometric center of the prestressed concrete wall 3.

[0061] In this embodiment, the reinforcing mesh consists of longitudinally arranged prestressed steel bars 7 and transversely arranged prestressed steel bars 6. The longitudinally arranged prestressed steel bars 7 and transversely arranged prestressed steel bars 6 are orthogonal or oblique. In other embodiments, the reinforcing mesh may also adopt a unidirectional prestressed steel bar structure.

[0062] In this embodiment, the width at both ends of the energy-consuming steel plate 4 is greater than the width in the middle, and the overall shape is canine bone-shaped.

[0063] In this embodiment, the hollow steel pipe 5 is a plate-shaped structure with through holes on its front and rear surfaces.

[0064] This invention also provides a method for manufacturing an energy-dissipating support wall, comprising the following steps:

[0065] S1: The energy-consuming steel plate 4 and the force-transmitting steel plate 10 are connected by the force-transmitting steel bar 9 to form a support assembly;

[0066] S2: A concrete pouring formwork is placed on the concrete wall support formwork. A first layer of reinforcing mesh is placed on the concrete pouring formwork. The support assembly is installed on the first layer of reinforcing mesh. Hollow steel pipe 5 is fitted onto the outside of energy-dissipating steel plate 4. A second layer of reinforcing mesh is placed above the support assembly. The two layers of reinforcing mesh and force-transferring steel bars 9 are tied together with tie bars 8 to form a reinforcing cage structure. Figures 7-10 As shown, the longitudinal prestressed steel bars 7 and the transverse prestressed steel bars 6 are arranged orthogonally or obliquely, and the steel mesh can also adopt the structural form of unidirectional prestressed steel bars. It should be noted that if the structural form of unidirectional prestressed steel bars is adopted, the unidirectional prestressed orthogonal concrete casting form 13 or the unidirectional prestressed oblique concrete casting form 15 should be used; if the longitudinal prestressed steel bars 7 and the transverse prestressed steel bars 6 are used, the bidirectional prestressed orthogonal concrete casting form 14 or the bidirectional prestressed oblique concrete casting form 16 should be used.

[0067] S3: A prestressed tensioning formwork 11 is arranged on one side of the concrete wall support formwork to tension the steel mesh;

[0068] S4: Pour concrete into the concrete pouring formwork, and after curing, remove the formwork to obtain the energy-dissipating support wall. After removal of the formwork, the finished product can be inspected, coded, and stored.

[0069] This invention also provides a method for using an energy-dissipating support wall, which includes the following steps:

[0070] A1: After the steel frame 1 is completed, place the energy-dissipating support wall on the floor slab inside the steel frame 1.

[0071] A2: Weld or bolt one end of the energy-consuming steel plate 4 to the beam-column joint of the steel frame 1 or the stiffening rib plate 2 of the frame beam flange of the steel frame 1.

[0072] A3: The energy-dissipating support wall is connected to the steel frame 1 by a number of deformable connectors 20. These connectors 20 can limit out-of-plane deformation but can adapt to in-plane deformation, providing out-of-plane support for the energy-dissipating support wall and adapting to the deformation between the energy-dissipating support wall and the steel frame 1.

[0073] A4: Fill the gap between the energy-dissipating support wall and the steel frame 1 with flexible sealing material.

[0074] Depending on the actual span, lateral resistance, and transportation requirements of the building project, different structural arrangements of the energy-dissipating support wall (hereinafter referred to as the support wall, and in the attached diagram, the support wall also refers to the energy-dissipating support wall) can be selected, for example:

[0075] When the span is small, the following can be used: Figure 1 The X-shaped support wall shown.

[0076] For ease of transport, the X-shaped support wall can be divided into two symmetrical support wall panels, such as... Figure 13 As shown, the two supporting wall panels are connected by a panel connecting plate 21, and the force transmission steel plate 10 is also separated between the two supporting wall panels. They need to be connected into one piece by welding, and the weld 19 is located between the two supporting wall panels.

[0077] When the span is large and high lateral stiffness is required, a single braced wall containing double-braced components can be used, such as... Figure 12 As shown, the supporting wall can be set in a "figure-eight" shape, such as... Figure 14 As shown. Similarly, for ease of transportation, the V-shaped support wall can be divided into two support wall panels, and connected by inter-panel connecting plates 21.

[0078] The specific working principle is as follows:

[0079] When a horizontal load is applied to the wall, the force is transmitted through the steel frame 1 to the energy-dissipating steel plate 4. Since the energy-dissipating steel plate 4 is encased in a hollow steel pipe 5, it can expand, contract, and deform to distribute the load to the force-transmitting reinforcing bars 9, the force-transmitting steel plate 10, and the concrete of the prestressed concrete wall 3, thereby dissipating the load. Figure 4 As shown, the concrete between the energy-dissipating steel plate 4 and the force-transmitting steel plate 10 is the direct unloading zone 17, while the remaining concrete is located in the indirect unloading zone 18. During the unloading process, the energy-dissipating steel plate 4 first enters the yielding state, undergoing plastic deformation and dissipating seismic energy. The reinforcing mesh applies prestress to the concrete, ensuring that the concrete is always under compression and participates in load bearing and lateral resistance.

[0080] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0081] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An energy-dissipating support wall, characterized in that, include: The prestressed concrete wall (3) has two layers of steel mesh inside, the steel mesh including at least one prestressed steel bar arranged in one direction; Force-transmitting steel plate (10) is arranged between two layers of steel mesh; Multiple energy-consuming steel plates (4) are arranged between two layers of steel mesh and around the force-transmitting steel plate (10). One end of the energy-consuming steel plate (4) extends beyond the prestressed concrete wall (3) and is connected to the steel frame (1), while the other end is connected to the force-transmitting steel plate (10) through the force-transmitting steel bars (9). A hollow steel pipe (5) is sleeved on the outside of the energy-consuming steel plate (4). There is a gap between the hollow steel pipe (5) and the energy-consuming steel plate (4) or it is filled with non-adhesive material. When the energy-consuming steel plate (4) is subjected to force, it can expand and contract along the length direction of the hollow steel pipe (5).

2. The energy-dissipating support wall according to claim 1, characterized in that, Also includes: Tie bar (8) binds two layers of steel mesh and force-transfer steel bar (9) to form a steel cage structure.

3. The energy-dissipating support wall according to claim 1, characterized in that, The force-transmitting steel plate (10) is arranged at the geometric center of the prestressed concrete wall (3).

4. The energy-dissipating support wall according to claim 1, characterized in that, The steel mesh is composed of longitudinally arranged prestressed steel bars (7) and transversely arranged prestressed steel bars (6).

5. The energy-dissipating support wall according to claim 4, characterized in that, The longitudinal prestressed steel bars (7) and the transverse prestressed steel bars (6) are arranged orthogonally or obliquely.

6. The energy-dissipating support wall according to claim 1, characterized in that, The width at both ends of the energy-consuming steel plate (4) is greater than the width in the middle.

7. The energy-dissipating support wall according to claim 1, characterized in that, The hollow steel pipe (5) is a plate-shaped structure with through holes on its front and rear surfaces.

8. A method for manufacturing an energy-dissipating support wall, used to manufacture the energy-dissipating support wall according to any one of claims 1-7, comprising the following steps: S1: The energy-consuming steel plate (4) and the force-transmitting steel plate (10) are connected by the force-transmitting steel bar (9) to form a support assembly; S2: Arrange concrete pouring templates on the concrete wall support formwork, arrange the first layer of steel mesh on the concrete pouring template, install the support components on the first layer of steel mesh, put the hollow steel pipe (5) on the outside of the energy dissipation steel plate (4), arrange the second layer of steel mesh above the support components; tie the two layers of steel mesh and the force transmission steel bar (9) together with tie bars (8) to form a steel cage structure; S3: Tensioned steel mesh; S4: Pour concrete into the concrete pouring formwork, and after curing, remove the formwork to obtain the energy-dissipating support wall.

9. A method of using an energy-dissipating support wall, characterized in that, The application of the energy-dissipating support wall according to any one of claims 1-7 includes the following steps: A1: After the steel frame (1) is completed, place the energy-consuming support wall on the floor slab inside the steel frame (1); A2: Weld or bolt one end of the energy-consuming steel plate (4) to the beam-column joint of the steel frame (1) or the stiffening rib (2) of the frame beam flange of the steel frame (1); A3: The energy-dissipating support wall is connected to the steel frame (1) by multiple deformable connectors (20); A4: Fill the gap between the energy-dissipating support wall and the steel frame (1) with flexible sealing material.

10. A method of using an energy-dissipating support wall according to claim 9, characterized in that, The energy-consuming support wall is divided into two symmetrical support wall panels, and the two support wall panels are connected by a panel connecting plate (21).

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