CN220394915U - Self-resetting shear wall with replaceable buckling-restrained steel plate damper at corner - Google Patents
Self-resetting shear wall with replaceable buckling-restrained steel plate damper at corner Download PDFInfo
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- CN220394915U CN220394915U CN202321925465.9U CN202321925465U CN220394915U CN 220394915 U CN220394915 U CN 220394915U CN 202321925465 U CN202321925465 U CN 202321925465U CN 220394915 U CN220394915 U CN 220394915U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 87
- 239000010959 steel Substances 0.000 title claims abstract description 87
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 239000004574 high-performance concrete Substances 0.000 claims abstract description 9
- 238000005265 energy consumption Methods 0.000 claims description 13
- 239000004567 concrete Substances 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 2
- 239000011150 reinforced concrete Substances 0.000 description 9
- 230000006378 damage Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012761 high-performance material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008832 photodamage Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Abstract
The utility model relates to a self-resetting shear wall with a replaceable buckling-restrained steel plate damper arranged at a corner, and belongs to the technical field of shear walls. The shear wall provided by the utility model is suitable for multi-layer and high-rise buildings in earthquake-proof fortification areas, and the bottom edge part of the shear wall is partially separated from the lower floor slab components by rubber pads; high-strength longitudinal ribs are arranged in the hidden columns at the edges of the shear wall, and the high-strength longitudinal ribs are fixed by stirrups; a replaceable buckling-preventing steel plate damper is arranged outside corners of two sides of the shear wall and used as a replaceable corner member; the shear wall is made of fiber reinforced high-performance concrete. The shear wall provided by the utility model has the advantages of restorability and high shock resistance, can fully exert the performance advantages of high-strength materials, and realizes the performance target that the structure is easy to repair.
Description
Technical Field
The utility model relates to a self-resetting shear wall with a replaceable buckling-restrained steel plate damper arranged at a corner, and belongs to the technical field of shear walls.
Background
The shear wall is a side force resisting component widely used in high-rise and super high-rise buildings, and the stress performance of the whole structure is important. Therefore, developing a shear wall with good earthquake resistance and self-resetting function is a key problem for improving the earthquake resistance and toughness of high-rise buildings.
The high strength characteristic of the high-strength steel bar can provide elastic restoring force for the wall body, so that residual deformation is reduced, and concrete damage in a plastic hinge area is reduced. The use of the high-strength steel bars can greatly reduce the design and construction difficulty of the self-resetting structure and reduce the engineering technical cost, and provides a new idea for the development of the self-resetting shear wall.
On the other hand, the design of the replaceable component weakens or sets the ductile energy dissipation component on a certain part of the structure, so that the part is subjected to concentrated plastic deformation under the action of an earthquake, absorbs and dissipates energy, and realizes quick replacement and functional recovery after the earthquake. The shear wall corner position is easy to be seriously damaged under the action of an earthquake, and the replaceable wall corner members are arranged at the wall corner position, so that the stress concentration of a plastic hinge area can be effectively relieved, the damage to a wall body is reduced, and when the earthquake damage is serious, the wall corner members can be replaced in time, and the function of the shear wall is quickly recovered.
Based on the above reasons, in order to improve the earthquake resistance and the post-earthquake recovery performance of the shear wall, the utility model provides a self-resetting shear wall with a replaceable buckling-restrained steel plate damper arranged at a corner and a manufacturing method thereof. The utility model can effectively solve the problems of large residual deformation and difficult restoration of the traditional shear wall after earthquake, and has great significance for innovative development of the shear wall structure with the restorable function and improvement of the earthquake-resistant toughness of high-rise buildings.
Disclosure of Invention
The self-resetting shear wall provided by the utility model has the advantages of simple structure, convenience in construction and good anti-seismic performance, is provided with the replaceable buckling-restrained steel plate damper at the corner, has a replaceable function, is easy to recover after earthquake, and meets the anti-seismic toughness development requirement.
The technical solution for realizing the purpose of the utility model is as follows: a self-resetting shear wall with a replaceable buckling-restrained steel plate damper arranged at a corner is characterized in that a rubber pad is locally adopted at the bottom edge of the shear wall to separate the bottom edge of the wall from a lower floor slab component so as to form a local swaying interface; high-strength longitudinal ribs are arranged in the hidden columns at the edges of the shear wall, and the high-strength longitudinal ribs are fixed by stirrups; distributing steel bars are arranged in the shear wall webs; a replaceable buckling-preventing steel plate damper is arranged outside corners of two sides of the shear wall and used as a replaceable corner member; the shear wall is made of fiber reinforced high-performance concrete.
On the basis of the scheme, the high-strength longitudinal bars are preferably threaded bars or smooth round bars, and the yield strength of the bars is 500MPa or more.
On the basis of the scheme, the upper end and the lower end of the high-strength longitudinal rib are mechanically anchored in the upper floor slab component and the lower floor slab component by adopting an anchoring steel plate and an anchoring bolt.
On the basis of the scheme, bolt holes are reserved in the shear wall and the lower floor slab member before concrete is poured for installing and fixing the replaceable buckling-restrained steel plate damper.
On the basis of the scheme, the replaceable buckling-restrained steel plate damper preferably comprises an energy-dissipating steel plate, an outer cover steel plate and a connecting bolt. The energy consumption steel plate is a single-core I-shaped section steel plate, and the outer cover steel plate is a rectangular section steel plate. And the energy consumption steel plate and the outer cover steel plate are connected with the shear wall and the lower floor slab component by adopting connecting bolts.
On the basis of the scheme, preferably, the energy consumption steel plate is made of Q235-grade steel, and the outer cover steel plate and the connecting bolts are made of Q345-grade or higher strength steel.
On the basis of the scheme, the strength grade range of the fiber reinforced high-performance concrete is C60-C100, the fiber type of the fiber reinforced high-performance concrete is steel fiber or PVA fiber, and the volume doping rate of the fiber is 1-1.5%.
Compared with the prior art, the utility model has the remarkable advantages that:
1. the structure has self-resetting capability: the high-strength longitudinal ribs with wide market sources and simple construction are adopted as the main stress ribs at the edges of the wall body, the high-strength characteristic of the longitudinal ribs can provide elastic restoring force for the wall body to reduce residual deformation, and the longitudinal ribs can serve as the main stress ribs to provide anti-seismic bearing capacity for the wall body, so that stress concentration of plastic hinge areas is avoided, concrete damage is reduced, and the shear wall structure has self-resetting capability.
2. The structure has the function restorability after earthquake: the replaceable buckling-restrained steel plate damper with simple structure is arranged outside the corner, and when the structure is subjected to earthquake action, the energy-dissipating steel plate of the damper achieves buckling-restrained effect under the combined action of the outer cover steel plate and the wall body and exerts deformation energy-dissipating capacity of the damper. After the earthquake action, the damper can not weaken the rigidity of the section of the bottom of the wall body, is easy to detach and replace, can realize quick replacement and function recovery after the earthquake, and reduces the cost and difficulty of repairing after the earthquake.
3. The structure has high anti-seismic performance: compared with the traditional full-slotting swing interface, the shear wall edge is locally provided with the rubber pad to form the local swing interface, so that the bearing capacity and rigidity of the section are not greatly weakened, the recovery effect of the high-strength longitudinal ribs on wall deformation can be improved, and the wall damage is concentrated near the corner slotting position. The anti-seismic energy consumption capability of the shear wall structure can be enhanced by being matched with the buckling-restrained steel plate damper.
4. Fully plays the advantages of high-performance materials: the shear wall structure is simple and convenient to construct, the stress system is clear, and the buckling-restrained steel plate damper is arranged at the weak part of the corner, which is easy to damage, so that the performance advantage of the high-strength high-performance material is more fully exerted, the cooperative working performance of the material is improved, the cross section size of a member is reduced, and the construction cost is reduced.
Drawings
FIG. 1 is an elevation view of a self-resetting shear wall with replaceable buckling-restrained steel plate dampers disposed at corners of the wall of the present utility model;
FIG. 2 is an elevation view of the replaceable buckling restrained steel plate damper of the present utility model;
FIG. 3 is a schematic cross-sectional view of a dissipative steel plate of the replaceable buckling restrained steel plate damper of the present utility model.
Reference numerals: 1-upper floor plate component, 2-reinforced concrete shear wall, 3-lower floor plate component, 4-high-strength longitudinal ribs, 5-replaceable buckling-restrained steel plate damper, 6-rubber pad, 7-distributed steel bars, 8-stirrups, 9-connecting bolts, 10-anchoring bolts, 11-anchoring steel plates, 12-energy consumption steel plates and 13-outer cover steel plates
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
A self-resetting shear wall with replaceable buckling-preventing steel plate dampers arranged at corners refers to a reinforced concrete shear wall 2 shown in fig. 1, wherein the upper part of the self-resetting shear wall is an upper floor plate member 1, and the lower part of the self-resetting shear wall is a lower floor plate member 3.
The bottom edge part of the reinforced concrete shear wall 2 is divided from the lower floor slab component 2 by a rubber pad 6 to form a local swaying interface; the high-strength longitudinal bars 4 are arranged in the concealed columns at the edges of the reinforced concrete shear walls 2 to serve as longitudinal stress steel bars, and the high-strength longitudinal bars 4 are fixed by hooping bars 8; longitudinal and transverse distributed steel bars 7 are arranged in the web plates of the reinforced concrete shear wall 2; and the outer parts of the corners of the two sides of the reinforced concrete shear wall 2 are provided with replaceable buckling-preventing steel plate dampers 5 serving as replaceable corner members.
The high-strength longitudinal bars 4 are of the type with spiral ribs or spiral grooves on the surface, and the yield strength of the steel bars is 1000MPa or more.
The high-strength longitudinal ribs 4 are mechanically anchored in the upper floor slab component 1 and the lower floor slab component 3 by adopting anchor bolts 10 and anchor steel plates 11 at the upper end and the lower end of the high-strength longitudinal ribs 4.
The reinforced concrete shear wall 2 and the lower floor slab member 3 are reserved with bolt holes at designated positions before concrete is poured, and the bolt holes are used for installing and fixing the replaceable buckling-restrained steel plate damper 5.
The replaceable buckling-restrained steel plate damper 5 comprises a power consumption steel plate 12, an outer cover steel plate 13 and a connecting bolt 9. The energy consumption steel plate 12 is a single-core I-shaped section steel plate, and the outer cover steel plate 13 is a rectangular section steel plate. The energy consumption steel plate 12 and the outer cover steel plate 13 are reserved with bolt holes at designated positions, and the connecting bolts 9 penetrate through the bolt holes to connect the energy consumption steel plate 12 and the outer cover steel plate with the reinforced concrete shear wall 2 and the lower floor slab member 3.
The energy consumption steel plate 12 is made of Q235-grade steel, and the outer cover steel plate 13 and the connecting bolt 9 are made of Q345-grade or above strength steel.
The reinforced concrete shear wall 2 adopts fiber reinforced high-performance concrete, the strength grade range is C60-C100, the fiber type in the high-performance concrete is steel fiber or PVA fiber, and the volume doping rate range of the fiber is 1% -1.5%.
The method has high construction efficiency and good economic benefit, forms the self-resetting shear wall with the recoverable function and high shock resistance by combining the novel design concept of self-resetting of the high-strength reinforcement material with the replaceable energy consumption, and realizes the performance targets of light damage and easy repair after structural earthquake.
Claims (7)
1. A corner disposes removable buckling restrained steel sheet damper's of buckling self-resetting shear force wall, its characterized in that: the bottom edge part of the shear wall is separated from the lower floor slab component by a rubber pad to form a local swaying interface; high-strength longitudinal ribs are arranged in the hidden columns at the edges of the shear wall, and the high-strength longitudinal ribs are fixed by stirrups; distributing steel bars are arranged in the shear wall webs; a replaceable buckling-preventing steel plate damper is arranged outside corners of two sides of the shear wall and used as a replaceable corner member; the shear wall is made of fiber reinforced high-performance concrete.
2. The shear wall of claim 1, wherein: the high-strength longitudinal bars adopt screw-thread steel bars or smooth round steel bars, and the yield strength of the steel bars is 500MPa or more.
3. The shear wall of claim 1, wherein: the upper and lower ends of the high-strength longitudinal bars are mechanically anchored in the upper and lower floor slab members by adopting anchor steel plates and anchor bolts.
4. The shear wall of claim 1, wherein: the shear wall and the lower floor slab component are reserved with bolt holes before concrete is poured, and the bolt holes are used for installing and fixing the replaceable buckling-restrained steel plate damper.
5. The shear wall of claim 1, wherein: the replaceable buckling-restrained steel plate damper comprises an energy-dissipating steel plate, an outer cover steel plate and a connecting bolt; the energy consumption steel plate is a single-core I-shaped section steel plate, and the outer cover steel plate is a rectangular section steel plate; and the energy consumption steel plate and the outer cover steel plate are connected with the shear wall and the lower floor slab component by adopting connecting bolts.
6. The shear wall of claim 5, wherein: the energy consumption steel plate adopts Q235 grade steel, and the outer cover steel plate and the connecting bolt adopt Q345 grade and above strength steel.
7. The shear wall of claim 1, wherein: the strength grade range of the fiber reinforced high-performance concrete is C60-C100, the fiber type of the fiber reinforced high-performance concrete is steel fiber or PVA fiber, and the volume doping rate of the fiber is 1% -1.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321925465.9U CN220394915U (en) | 2023-07-20 | 2023-07-20 | Self-resetting shear wall with replaceable buckling-restrained steel plate damper at corner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321925465.9U CN220394915U (en) | 2023-07-20 | 2023-07-20 | Self-resetting shear wall with replaceable buckling-restrained steel plate damper at corner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220394915U true CN220394915U (en) | 2024-01-26 |
Family
ID=89613454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321925465.9U Active CN220394915U (en) | 2023-07-20 | 2023-07-20 | Self-resetting shear wall with replaceable buckling-restrained steel plate damper at corner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220394915U (en) |
-
2023
- 2023-07-20 CN CN202321925465.9U patent/CN220394915U/en active Active
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