A metal energy dissipation damper and replaceable energy dissipation connecting beam structure

Abstract

The present invention discloses a metal energy dissipation damper and a replaceable energy dissipation connecting beam structure, which relates to the technical field of earthquake prevention and disaster reduction. The metal energy dissipation damper includes a damper energy dissipation section and surrounding constraint steel plates; the two ends of the damper energy dissipation section have connecting parts extending in opposite directions, and the two side surfaces of the damper energy dissipation section are coated with a non-bonding sliding layer; the surrounding constraint steel plates are arranged around the outside of the damper energy dissipation section, and there is a gap between the surrounding constraint steel plates and the damper energy dissipation section, and the gap is filled with flexible materials and high-strength mortar. The replaceable energy dissipation connecting beam structure includes wall limbs and connecting beam steel concrete sections on both sides; the connecting beam steel concrete section is pre-embedded with steel sections, and the end of the steel sections extends out of the end surface of the connecting beam steel concrete section and is fixed with pre-embedded steel end plates, and the two connecting parts are respectively connected to the two pre-embedded steel end plates by bolts. The present invention realizes that the energy dissipation components can be replaced, and when the connecting beam steel concrete sections on both sides undergo relative displacement in the vertical direction, the damper energy dissipation section is deformed to achieve energy dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of earthquake prevention and disaster reduction, and more particularly to a metal energy dissipation damper and a replaceable energy dissipation connecting beam structure. Background Art

[0002] The coupling beam connects the wall members of two adjacent walls in the shear wall structure. Under the action of wind load or earthquake, the internal force of the coupling beam is often very large, and it produces large deformation, thereby absorbing a large amount of earthquake energy, which plays an important role in delaying the yield of the wall members. The post-earthquake repair of conventional coupling beams has always been a difficult problem, and the destruction of the coupling beam will cause serious damage to the wall members on both sides, large residual deformation of the structure, and complex and time-consuming repair process.

[0003] In recent years, researchers have proposed that metal dampers be installed in the middle of the coupling beam to protect the main structure and effectively dissipate earthquake energy. However, there are still problems to be solved, such as the complex structure, difficulty in replacement, and heavy weight of metal dampers.

[0004] Therefore, how to provide a replaceable damper structure with good energy dissipation effect is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, the present invention provides a metal energy dissipation damper and a replaceable energy dissipation connecting beam structure, aiming to solve the above technical problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A metal energy dissipation damper, comprising:

[0008] A damper energy dissipation section, wherein the two end edges of the damper energy dissipation section are provided with connection parts extending in opposite directions, and the two side surfaces of the damper energy dissipation section are coated with a non-bonding sliding layer;

[0009] A four-sided restraint steel plate, which is arranged around the outside of the damper energy dissipation section, and there is a gap between the inner wall of the four-sided restraint steel plate and the outer wall of the damper energy dissipation section; the gaps between the upper and lower edges of the damper energy dissipation section and the upper and lower inner walls of the four-sided restraint steel plate are filled with flexible material, and the gaps between the two side surfaces of the damper energy dissipation section and the two side inner walls of the four-sided restraint steel plate are filled with high-strength mortar.

[0010] Through the above technical scheme, the metal energy dissipation damper provided by the present invention is composed of an energy dissipation section, surrounding constraint steel plates and filling materials. The flexible materials are filled on the upper and lower parts so that the energy dissipation section of the damper has a certain vertical deformation ability. High-strength mortar is filled on both sides to prevent the energy dissipation section of the damper from becoming unstable and buckling. The structure is simple. When there is relative displacement in the vertical direction, the energy dissipation section of the damper is deformed to achieve energy dissipation.

[0011] Preferably, in the above-mentioned metal energy dissipation damper, the energy dissipation section of the damper is a rectangular steel.

[0012] Preferably, in the above-mentioned metal energy dissipation damper, the connecting portion includes a damper non-yielding section extending along both ends of the rectangular steel, the damper non-yielding section and the rectangular steel are cut and formed from a piece of steel plate, and damper end plates are vertically welded to the opposite ends of the two damper non-yielding sections.

[0013] Preferably, in the above-mentioned metal energy dissipation damper, the non-yielding section of the damper is an isosceles trapezoidal plate, the top edge of the isosceles trapezoidal plate is butted against the end edge of the rectangular steel section, and the bottom edge of the isosceles trapezoidal plate is welded and fixed to the damper end plate. The shape design purpose of the isosceles trapezoidal plate is to prevent stress concentration.

[0014] Preferably, in the above-mentioned metal energy dissipation damper, a plurality of damper stiffening ribs are provided at the welding point between the isosceles trapezoidal plate and the damper end plate.

[0015] The present invention also provides a replaceable energy dissipation connecting beam structure, including wall limbs on both sides, and connecting beam steel concrete sections arranged opposite to the inner walls of the wall limbs on both sides; steel sections are pre-embedded in the connecting beam steel concrete section, the ends of the steel sections extend out of the end faces of the connecting beam steel concrete section, and pre-embedded steel end plates are fixed to the exposed ends of the steel sections, a metal energy dissipation damper is connected between the two pre-embedded steel end plates, and the two connecting parts are respectively connected to the two pre-embedded steel end plates by bolts.

[0016] Through the above technical scheme, the energy dissipation damper provided by the present invention is connected to the main structure by bolts, and the disassembly and installation operations are simple, so that the energy dissipation components can be replaced; the weight is light, and the damper in the middle of the energy dissipation connecting beam is small in size and simple in structure. When the steel concrete sections of the connecting beams on both sides undergo relative displacement in the vertical direction, the energy dissipation section of the damper is deformed to achieve energy dissipation.

[0017] Preferably, in the above-mentioned replaceable energy dissipation connecting beam structure, the steel section is an I-beam, one end of the I-beam away from the embedded steel section end plate extends to the inside of the wall limb, and connecting beam longitudinal reinforcement is welded and fixed to the surfaces of the upper and lower flange plates of the I-beam.

[0018] Preferably, in the above-mentioned replaceable energy dissipation connecting beam structure, there is a gap between the embedded steel end plate and the end surface of the corresponding connecting beam steel concrete section.

[0019] Preferably, in the above-mentioned replaceable energy dissipation connecting beam structure, the embedded steel end plate and the connecting portion are both provided with corresponding screw holes for the bolt connection.

[0020] Preferably, in the above-mentioned replaceable energy dissipation connecting beam structure, the distance d between the upper and lower inner walls of the surrounding constrained steel plates and the upper and lower edges of the damper energy dissipation section is greater than the shear deformation of the metal energy dissipation damper.

[0021] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a metal energy dissipation damper and a replaceable energy dissipation connecting beam structure. By installing a replaceable metal energy dissipation damper in the middle of a conventional connecting beam, the seismic energy can be effectively consumed at the epicenter to protect the main structure and have good energy dissipation capacity. The energy dissipation damper is replaceable after the earthquake and is easy to operate and has good post-earthquake recoverability. The structure is simple and the manufacture and installation are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 The accompanying drawing is a schematic structural diagram of a metal energy dissipation damper provided by the present invention;

[0024] Figure 2 The accompanying drawing is a cross-sectional view of the metal energy dissipation damper provided by the present invention;

[0025] Figure 3 The accompanying drawing is a schematic structural diagram of the replaceable energy dissipation connecting beam structure provided by the present invention.

[0026] in:

[0027] 1- wall limb; 2- steel-concrete section of connecting beam; 3- steel; 4- longitudinal reinforcement of connecting beam; 5- embedded steel end plate; 6- damper end plate; 7- energy dissipation section of damper; 8- non-yielding section of damper; 9- restraining steel plates around; 10- stiffening rib of damper; 11- bolt; 12- flexible material; 13- screw hole; 14- non-bonded sliding layer; 15- high-strength mortar. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] See attached Figure 2 and attached Figure 3 , an embodiment of the present invention discloses a metal energy dissipation damper, comprising:

[0031] The damper energy dissipation section 7 has connecting parts extending in opposite directions at both ends of the damper energy dissipation section 7, and the surfaces of both sides of the damper energy dissipation section 7 are coated with a non-bonding sliding layer 14;

[0032] The surrounding restraint steel plates 9 are arranged around the outside of the damper energy dissipation section 7, and there is a gap between the inner wall of the surrounding restraint steel plates 9 and the outer wall of the damper energy dissipation section 7; the gaps between the upper and lower edges of the damper energy dissipation section 7 and the upper and lower inner walls of the surrounding restraint steel plates 9 are filled with flexible materials 12, and the gaps between the two side surfaces of the damper energy dissipation section 7 and the two side inner walls of the surrounding restraint steel plates 9 are filled with high-strength mortar 15.

[0033] In order to further optimize the above technical solution, the damper energy dissipation section 7 is a rectangular steel.

[0034] In order to further optimize the above technical solution, the connecting part includes a damper non-yielding section 8 extending along both ends of the rectangular steel. The damper non-yielding section 8 and the rectangular steel are cut and formed from a piece of steel plate, and the damper end plates 6 are vertically welded to the opposite ends of the two damper non-yielding sections 8.

[0035] In order to further optimize the above technical solution, the non-yielding section 8 of the damper is an isosceles trapezoidal plate, the top edge of the isosceles trapezoidal plate is butted against the end edge of the rectangular steel, and the bottom edge of the isosceles trapezoidal plate is welded and fixed to the damper end plate 6.

[0036] In another embodiment, the non-yielding section 8 of the damper may be designed as a wedge-shaped plate.

[0037] In order to further optimize the above technical solution, a plurality of damper stiffening ribs 10 are provided at the welding point between the isosceles trapezoidal plate and the damper end plate 6 .

[0038] In this embodiment, the sizes and numbers of the damper stiffening ribs 10 are arranged symmetrically up and down.

[0039] In this embodiment, the non-bonded slip layer 14 is made of a flexible material such as epoxy resin.

[0040] Embodiment 2:

[0041] See attached Figure 1 To Attachment Figure 3The embodiment of the present invention discloses a replaceable energy dissipation connecting beam structure, including wall members 1 on both sides, and connecting beam steel concrete sections 2 arranged opposite to the inner side walls of the wall members 1 on both sides; a steel section 3 is pre-embedded in the connecting beam steel concrete section 2, and the end of the steel section 3 extends out of the end surface of the connecting beam steel concrete section 2, and a pre-embedded steel end plate 5 is fixed to the exposed end of the steel section 3, a metal energy dissipation damper of embodiment 1 is connected between the two pre-embedded steel end plates 5, and the two connecting parts are respectively connected to the two pre-embedded steel end plates 5 by bolts 11.

[0042] In order to further optimize the above technical solution, the steel section 3 is an I-beam, one end of the I-beam away from the embedded steel end plate 5 extends to the inside of the wall 1, and the upper and lower flange plates of the I-beam are welded and fixed with connecting beam longitudinal reinforcement 4.

[0043] In order to further optimize the above technical solution, a gap is provided between the end surface of the embedded steel end plate 5 and its corresponding connecting beam steel concrete section 2.

[0044] In order to further optimize the above technical solution, the embedded steel end plate 5 and the connecting portion are both provided with corresponding screw holes 13 for connection with the bolts 11 .

[0045] In order to further optimize the above technical solution, the distance d between the upper and lower inner walls of the surrounding constraint steel plates 9 and the upper and lower edges of the damper energy dissipation section 7 is greater than the shear deformation of the metal energy dissipation damper, otherwise the damper energy dissipation section may break through the surrounding constraint steel plates.

[0046] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0047] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A metal energy dissipation damper, characterized in that: include: A damper energy dissipation section (7), wherein two end edges of the damper energy dissipation section (7) are provided with connection portions extending in opposite directions, and two side surfaces of the damper energy dissipation section (7) are coated with a non-adhesive sliding layer (14); A surrounding restraining steel plate (9), the surrounding restraining steel plate (9) being arranged on the outside of the damper energy dissipation section (7), and having a gap between the inner wall of the surrounding restraining steel plate (9) and the outer wall of the damper energy dissipation section (7); the gap between the upper and lower edges of the damper energy dissipation section (7) and the upper and lower inner walls of the surrounding restraining steel plate (9) is filled with a flexible material (12), and the gap between the two side surfaces of the damper energy dissipation section (7) and the two side inner walls of the surrounding restraining steel plate (9) is filled with a high-strength mortar (15); The damper energy dissipation section (7) is a rectangular steel section; The connecting portion comprises a damper non-yielding section (8) extending along both ends of the rectangular steel, the damper non-yielding section (8) and the rectangular steel being cut and formed from a piece of steel plate, and damper end plates (6) are vertically welded to opposite ends of the two damper non-yielding sections (8); The non-yielding section (8) of the damper is an isosceles trapezoidal plate, the top edge of the isosceles trapezoidal plate is butted against the end edge of the rectangular steel section, and the bottom edge of the isosceles trapezoidal plate is welded and fixed to the damper end plate (6); A plurality of damper stiffening ribs (10) are provided at the welding point between the isosceles trapezoidal plate and the damper end plate (6).

2. A replaceable energy dissipation connecting beam structure, comprising wall members (1) on both sides, and connecting beam-type steel concrete sections (2) arranged opposite to each other on the inner side walls of the wall members (1) on both sides; characterized in that: A steel section (3) is embedded in the connecting beam steel concrete section (2), the end of the steel section (3) extends out of the end surface of the connecting beam steel concrete section (2), and an embedded steel end plate (5) is fixed to the exposed end of the steel section (3), and a metal energy dissipation damper according to claim 1 is connected between two of the embedded steel end plates (5), and the two connecting parts are respectively connected to the two embedded steel end plates (5) by bolts (11).

3. The replaceable energy dissipation connecting beam structure according to claim 2, characterized in that: The steel section (3) is an I-beam, one end of the I-beam away from the embedded steel section end plate (5) extends to the interior of the wall limb (1), and connecting beam longitudinal reinforcements (4) are welded and fixed to the surfaces of the upper and lower flange plates of the I-beam.

4. The replaceable energy dissipation connecting beam structure according to claim 2, characterized in that: There is a gap between the embedded steel end plate (5) and the end surface of its corresponding connecting beam steel concrete section (2).

5. The replaceable energy dissipation connecting beam structure according to claim 2, characterized in that: The embedded steel end plate (5) and the connection portion are both provided with corresponding screw holes (13) for connection with the bolts (11).

6. The replaceable energy dissipation connecting beam structure according to claim 2, characterized in that: The distance d between the upper and lower inner walls of the surrounding constraining steel plate (9) and the upper and lower edges of the damper energy dissipation section (7) is greater than the shear deformation of the metal energy dissipation damper.

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