CN212641792U

CN212641792U - Anti-destabilization buckling restrained brace for building shock absorption

Info

Publication number: CN212641792U
Application number: CN202021030659.9U
Authority: CN
Inventors: 唐文红; 刘福林; 付忠涛; 邱春龙; 岑海力; 杜学平; 罗帅; 叶派
Original assignee: Sinohydro Bureau 9 Co Ltd
Current assignee: Sinohydro Bureau 9 Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-03-02
Anticipated expiration: 2030-06-08

Abstract

An anti-destabilization buckling restrained brace for building shock absorption comprises a sleeve and an energy-consuming core plate, wherein the energy-consuming core plate is sleeved with a non-binding plate sleeve; the outer wall of the sleeve is provided with a spiral stiffening rib, and the inner wall of the sleeve is carved with a thread-shaped occlusion groove; the energy dissipation core plate is a plate body with a straight-line-shaped section, the two ends of the energy dissipation core plate are fixedly provided with limiting wing pieces, the energy dissipation core plate is wrapped by the unbonded plate sleeve, and a gap is reserved between the unbonded plate sleeve and the limiting wing pieces. The occlusion groove is additionally arranged on the inner wall of the supporting sleeve, the occlusion groove increases the occlusion force and the friction force between the concrete poured between the sleeve and the core plate, increases the integrity between the sleeve and the concrete, can restrict the rigidity of the concrete so as to improve the compressive strength of the concrete, and prevents the problem that the concrete is easily crushed under the fatigue load of the core plate.

Description

Anti-destabilization buckling restrained brace for building shock absorption

Technical Field

The utility model relates to a building shock attenuation technical field, concretely relates to building shock attenuation is with preventing unstability type bucking restraint support.

Background

Earthquake is a common natural disaster, and each occurrence brings great disasters and pains to human beings. The conventional method of seismic resistance of a structure is to resist the action of a seismic by improving the strength and rigidity of the structure itself, while consuming the energy input by the seismic by using the ductility of the structure, i.e., the plastic deformation of the structure itself. This negative anti-shock strategy is undesirable. Therefore, the research on economic and effective anti-seismic measures is of great significance. The buckling-restrained brace is a very effective energy dissipation and shock absorption device, can provide additional rigidity for a structure under a small earthquake, reduces structural deformation, and can yield and dissipate earthquake energy under a large earthquake, so that a main body structure is protected, a damage control effect is achieved, buckling-restrained brace members can be replaced after the earthquake, and therefore the buckling-restrained brace is convenient to restore after the earthquake. The use of the buckling-restrained brace can also reduce the cross section of the beam column and reduce the self weight of the structure. It is widely popular and has been used in large numbers because of its ability to provide good energy consumption and its advantages of ease of manufacture, and quality assurance.

However, the existing buckling restraining device has the following problems: the problems of insufficient occlusion and poor integrity exist between the core plate and the sleeve of the poured concrete material between the core plate and the sleeve, and the core plate is very easy to crush the concrete under the action of fatigue load due to the lack of constraint force between the concrete material and the inner wall of the sleeve, so that the buckling of the core plate is limited by the sleeve and the buckling of the core plate is eliminated; meanwhile, the existing large-span buckling restraining device is used as an axial compression member, and the buckling restraining device is easy to have the instability problem as the calculated length of the buckling restraining device is longer in terms of the stability of the pressure rod, and the outer wall of the circular sleeve of the existing buckling restraining device is lack of a structure for limiting the lateral instability of the pressure rod.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, a building shock attenuation is with preventing unstability type bucking restraint and supporting has been designed, this support has increased the restraint structure on telescopic outer wall, the bucking restraint device who is particularly useful for the large-span, the interlock recess has been increased on the sleeve inner wall that should support simultaneously, this interlock recess has increased bite-force and frictional force between sleeve and the core between the concrete that fills, the wholeness between sleeve and the concrete has been increased, thereby improve the sleeve and to the compressive strength of the rigidity restraint of concrete in order to improve the concrete, prevent that the concrete from being taken place by crowded garrulous problem easily under the effect of the fatigue load of core, and then improve the buckling resistance ability of sleeve to the core.

In order to realize the technical purpose, reach above-mentioned technological effect, the utility model discloses a realize through following technical scheme:

the buckling restrained brace comprises a sleeve and an energy-consuming core plate, wherein the energy-consuming core plate is sleeved with a binderless plate sleeve, the sleeve is sleeved outside the energy-consuming core plate, and a concrete material is poured between the inner wall of the sleeve and the binderless plate sleeve of the energy-consuming core plate; the outer wall of the sleeve is provided with a spiral stiffening rib, and the inner wall of the sleeve is carved with a thread-shaped occlusion groove; the energy-consumption core plate comprises an energy-consumption core plate and is characterized in that two end parts of the energy-consumption core plate are respectively fixed with limiting wing pieces which are symmetrically arranged, the limiting wing pieces are vertically connected with the energy-consumption core plate, bolt fixing holes are formed in the end parts of the energy-consumption core plate and the limiting wing pieces, an unbonded plate sleeve wraps the energy-consumption core plate, two ends of the unbonded plate sleeve reach transition junctions of a triangular part and a rectangular part of each limiting wing piece, and a gap is reserved between the unbonded plate sleeve and the energy-consumption core plate.

Furthermore, the energy dissipation core plate is a plate body with a straight-line-shaped section.

Furthermore, the energy dissipation core plate is a plate body with a cross-shaped section.

Furthermore, the limiting wing pieces are right-angled trapezoid plate bodies.

Furthermore, the reserved gap between the unbonded plate sleeve and the energy-consuming core plate is-mm.

Furthermore, the unbonded plate sleeve is made of silica gel or rubber materials.

Furthermore, the energy-consuming core plate is made of mild steel with yield strength of 0-MPa.

Furthermore, the sleeve is made of Q steel, and the surface of the sleeve is coated with anti-rust paint.

Further, the concrete material is C0 concrete.

Furthermore, ribs are arranged on the plate surfaces of the two sides of the energy consumption core plate at intervals along the extending direction of the energy consumption core plate, and the ribs are perpendicular to the plate surfaces of the energy consumption core plate.

The utility model has the advantages that: this support has increased the restraint structure on telescopic outer wall, be particularly useful for the buckling restraint device of large-span, the interlock recess has been increased on the sleeve inner wall of this support simultaneously, this interlock recess has increased bite-force and frictional force between the concrete that pours between sleeve and core, wholeness between sleeve and the concrete has been increased, thereby improve the sleeve and to the compressive strength of the rigidity restraint of concrete in order to improve the concrete, prevent that the concrete from being crowded garrulous problem emergence easily under the fatigue load's of core effect, and then improve the sleeve to the buckling resistance ability of core.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an assembly structure of an anti-destabilization buckling restrained brace for shock absorption of a building in the embodiment of the utility model;

FIG. 2 is a schematic structural view of a sleeve according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an energy consumption core board in an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a sleeve according to an embodiment of the present invention;

fig. 5 is a schematic view of a cross-sectional structure a-a of the energy consumption core board according to the embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a sleeve; 2. stiffening ribs; 3. an energy consumption core board; 4. a concrete material; 5. a bolt fixing hole; 6. a limiting wing panel; 7. no binding plate sleeve is arranged; 8. and (4) engaging the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-5, the anti-destabilization type buckling restrained brace for building shock absorption is provided, which comprises a sleeve 1 and an energy-consuming core plate 3, wherein the energy-consuming core plate 3 is sleeved with a binderless plate sleeve 7, the sleeve 1 is sleeved outside the energy-consuming core plate 3, and a concrete material is poured between the inner wall of the sleeve 1 and the binderless plate sleeve 7 of the energy-consuming core plate 3; the outer wall of the sleeve 1 is provided with a spiral stiffening rib 2, and the inner wall of the sleeve 1 is carved with a thread-shaped occlusion groove 8; the two ends of the energy-consuming core plate 3 are respectively fixed with the limiting wing pieces 6 symmetrically arranged, the limiting wing pieces 6 are perpendicularly connected with the energy-consuming core plate 3, bolt fixing holes 5 are formed in the end portions of the energy-consuming core plate 3 and the limiting wing pieces 6, the unbonded plate sleeve 7 wraps the energy-consuming core plate 3, the two ends of the unbonded plate sleeve 7 reach the transition junction of the triangular portion and the rectangular portion of the limiting wing pieces 6, and a gap is reserved between the unbonded plate sleeve 7 and the energy-consuming core plate 3.

This support has increased the constraint structure on sleeve 1's outer wall, be particularly useful for the buckling restraint device of large-span, interlock recess 8 has been increased on the sleeve 1 inner wall of this support simultaneously, this interlock recess 8 has increased bite-force and frictional force between the concrete that fills between sleeve 1 and the core, the wholeness between sleeve 1 and the concrete has been increased, thereby improve sleeve 1 to the rigidity restraint of concrete in order to improve the compressive strength of concrete, prevent that the concrete from being crowded garrulous problem emergence easily under the fatigue load's of core effect, and then improve sleeve 1 to the buckling-restrained ability of core.

In this embodiment, the energy dissipation core plate 3 is a plate body with a cross section in a shape of a straight line. In some embodiments, the energy dissipation core plate 3 may also be a plate body with a cross-section shaped like a Chinese character 'ji'.

In this embodiment, the stop tab 6 is a right-angled trapezoidal plate. In some embodiments, the stop tab 6 may also be a right-angled triangular plate.

In this embodiment, the clearance of reserving between unbonded plate cover 7 and power consumption core 3 is 1 ~ 2mm, unbonded plate cover 7 chooses for use silica gel or rubber material to make, power consumption core 3 chooses for use the mild steel that yield strength is 160 ~ 235MPa to make, sleeve 1 adopts Q235 steel to make and sleeve surface is brushed with anti-rust paint, concrete material 4 chooses for use C30 concrete, unbonded plate cover 7 keeps apart power consumption core 3 and sleeve 1, the overall structure that concrete material 4 constitutes, guarantee that the normal bucking of power consumption core 3 in sleeve 1 warp and is out of shape in order to dissipate the vibrations energy, and the clearance of reserving can prevent that sleeve 1 from receiving the axial force of power consumption core 3 transmission

The plate surfaces on the two sides of the energy consumption core plate 3 are provided with ribs which are arranged at intervals along the extending direction of the energy consumption core plate 3, and the ribs are perpendicular to the plate surface of the energy consumption core plate 3. In the present embodiment, the ribs are perpendicular to the length extending direction of the dissipative core plate 3, and in some embodiments, the ribs may also be disposed obliquely to the length extending direction of the dissipative core plate 3, that is, an included angle between the extending direction of the ribs and the length extending direction of the dissipative core plate 3 is less than 90 °, for example, 60 °, 45 °, and the like. The rib arrangement can further improve the buckling-restrained performance of the sleeve 1 to the core plate.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. The instability-preventing buckling-restrained brace for building shock absorption is characterized by comprising a sleeve (1) and an energy-consuming core plate (3), wherein a binderless plate sleeve (7) is sleeved on the energy-consuming core plate (3), the sleeve (1) is sleeved outside the energy-consuming core plate (3), and a concrete material is poured between the inner wall of the sleeve (1) and the binderless plate sleeve (7) of the energy-consuming core plate (3); the outer wall of the sleeve (1) is provided with a spiral stiffening rib (2), and the inner wall of the sleeve (1) is carved with a thread-shaped occlusion groove (8); the two ends of the energy-consuming core plate (3) are respectively fixed with limiting wing pieces (6) symmetrically arranged, the limiting wing pieces (6) are perpendicularly connected with the energy-consuming core plate (3), bolt fixing holes (5) are formed in the end portions of the energy-consuming core plate (3) and the limiting wing pieces (6), the energy-consuming core plate (3) is wrapped by the non-adhesive plate sleeve (7), the two ends of the non-adhesive plate sleeve (7) reach transition junction portions of the triangular portion and the rectangular portion of the limiting wing pieces (6), and a gap is reserved between the non-adhesive plate sleeve (7) and the energy-consuming core plate (3).

2. The instability-preventing buckling-restrained brace for shock absorption of buildings according to claim 1, wherein the energy-consuming core plate (3) is a plate body with a straight-line-shaped section.

3. The instability-preventing buckling-restrained brace for shock absorption of buildings according to claim 1, wherein the energy-consuming core plate (3) is a plate body with a cross-shaped section.

4. The instability-preventing buckling-restrained brace for shock absorption of buildings according to claim 1, wherein the limiting fin (6) is a right-angled trapezoidal plate body.

5. The instability-preventing buckling-restrained brace for damping of the building as claimed in claim 1, wherein a reserved gap between the binderless sleeve (7) and the energy-dissipating core plate (3) is 1-2 mm.

6. The instability-preventing buckling-restrained brace for shock absorption of buildings according to claim 1, wherein the binderless plate sleeve (7) is made of silica gel or rubber material.

7. The instability-preventing buckling-restrained brace for damping of buildings according to claim 1, wherein the energy-consuming core plate (3) is made of mild steel with yield strength of 160-235 MPa.

8. The instability-preventing buckling-restrained brace for damping of buildings according to claim 1, wherein the sleeve (1) is made of Q235 steel and the surface of the sleeve is painted with anti-rust paint.

9. The instability-preventing buckling-restrained brace for shock absorption of buildings according to claim 1, wherein the concrete material (4) is C30 concrete.

10. The instability-preventing buckling-restrained brace for shock absorption of buildings according to claim 1, wherein the plate surfaces on both sides of the energy-consuming core plate (3) are provided with ribs arranged at intervals along the extending direction of the energy-consuming core plate (3), and the ribs are perpendicular to the plate surface of the energy-consuming core plate (3).