CN211396271U - Bending steel truss connecting beam with U-shaped damper and capable of being quickly recovered after earthquake - Google Patents
Bending steel truss connecting beam with U-shaped damper and capable of being quickly recovered after earthquake Download PDFInfo
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- CN211396271U CN211396271U CN201922226130.8U CN201922226130U CN211396271U CN 211396271 U CN211396271 U CN 211396271U CN 201922226130 U CN201922226130 U CN 201922226130U CN 211396271 U CN211396271 U CN 211396271U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 20
- 239000010959 steel Substances 0.000 title claims abstract description 20
- 238000005452 bending Methods 0.000 title claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000005265 energy consumption Methods 0.000 claims description 6
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
The utility model provides a take crooked shaped steel truss that resumes fast after shake of U-shaped attenuator even roof beam, including the U-shaped attenuator, the utility model discloses utilize U-shaped attenuator power consumption on the basis of ordinary steel truss even roof beam, the U-shaped attenuator includes: the U-shaped upper cover plate, the U-shaped lower cover plate and the bolt; the structure is simple, the construction is convenient, and the disassembly is simple. Under a small earthquake, the bending steel truss connecting beam with the U-shaped damper does not generate plastic deformation, is equivalent to a common steel truss connecting beam, and provides vertical rigidity for the structure; under heavy shock, after the U-shaped damper yield load is reached, the damper is subjected to plastic deformation, so that energy is consumed. Most of the energy in the earthquake is dissipated by the U-shaped damper. The utility model discloses take the curved steel truss that the back of shaking of U-shaped attenuator resumes fast even roof beam is under the earthquake effect, and intensity does not take place the degradation, and does not take place to destroy, only needs the U-shaped apron of inspection, change attenuator after shaking, has the advantage that the low, in time use of restoration cost after shaking.
Description
Technical Field
The utility model belongs to the technical field of civil engineering energy dissipation shock attenuation, concretely relates to take crooked steel truss even roof beam of quick recovery after shake of crooked attenuator.
Background
The connecting beam is an important anti-seismic energy dissipation component in a shear wall system and a frame-shear wall system, and effectively resists overturning moment by ensuring the transmission of force between adjacent wall limbs. The reinforced concrete coupling beam is fundamentally restricted in performance due to material factors, so that the steel structure coupling beam with excellent energy consumption and ductility performance is proposed in recent years. On the basis, the steel truss connecting beam not only has various advantages of the steel connecting beam, but also has the advantages of steel saving, flexible rod piece arrangement, convenience in replacement and the like. When the span height of the steel truss connecting beam is smaller, the steel truss connecting beam mainly takes shearing deformation as a main part, and under the action of an earthquake, the steel truss connecting beam mainly dissipates earthquake energy through plastic deformation and plays a role in reducing the earthquake energy to a certain extent; however, since these deformations are all irreversible, the repair after an earthquake is difficult. The attenuation of seismic effects in a host structure by the introduction of replaceable U-shaped dampers into the structure has proven to be an effective approach. The U-shaped damper has the advantages of simple and reasonable deformation mechanism, good energy consumption, less influence from external objective conditions, convenient manufacture, simple and easily obtained materials, and convenient popularization, thereby having good development prospect.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a take crooked shaped steel truss that resumes after the shake of U-shaped attenuator even roof beam fast, the U-shaped attenuator is located even roof beam column node.
The technical scheme of the utility model:
a bending steel truss connecting beam with a U-shaped damper and capable of quickly recovering after earthquake comprises chord members, brackets 3, the U-shaped damper, oblique connecting rods, vertical connecting rods and vertical end rods;
the chord members comprise an upper chord member 1 and a lower chord member 2 which are both of T-shaped structures; the two ends of the upper chord 1 are fixed on the vertical end rods, and the upper chord 1 and the lower chord 2 are connected into a whole through the inclined connecting rod and the vertical connecting rod;
one end of the bracket 3 is fixedly connected to the vertical end rod, and the other end of the bracket is connected with the lower chord 2 through the U-shaped damper;
the U-shaped damper comprises two U-shaped damper upper cover plates 4 and one U-shaped damper lower cover plate 5, the two U-shaped damper upper cover plates and the U-shaped damper lower cover plate are consistent in structure and are provided with U-shaped protrusions, and the deformation energy consumption effect is achieved; the U-shaped damper upper cover plate 4 and the U-shaped damper lower cover plate 5 respectively cover the upper end face and the lower end face of the bracket 3 and the lower chord 2, so that the U-shaped bulges of the U-shaped damper upper cover plate 4 and the U-shaped damper lower cover plate 5 are ensured to correspond to the gap position between the bracket 3 and the lower chord 2; the U-shaped damper upper cover plate 4 and the U-shaped damper lower cover plate 5 are fixed on the bracket 3 and the lower chord 2 through the bolts 6 and the gaskets 7 in a matching mode.
The utility model has the advantages that:
(1) the staged work is realized by adjusting the size of the section of the U-shaped damper. Under a small earthquake, the U-shaped damper does not generate plastic deformation and provides longitudinal rigidity for the structure; under a large earthquake, the U-shaped damper deforms, and therefore seismic energy is consumed.
(2) After earthquake, the repairability can be quickly realized and the safety of the main structure can be protected. After the earthquake, the U-shaped damper is only needed to be detached for inspection and replacement, and the device has the advantages of low restoration cost after the earthquake and timely use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Figure 2 is a partial cross-sectional view of the U-shaped damper position of figure 1.
In the figure: 1, an upper chord; 2, a lower chord; 3, corbel; 4U-shaped damper upper cover plate; 5, a U-shaped damper lower cover plate; 6, bolts; 7 shim.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
The utility model relates to a take crooked shaped steel truss even roof beam that U-shaped attenuator's shake back resumes fast, including U-shaped attenuator, chord member and bracket.
As shown in fig. 1, the chord member comprises an upper chord member 1 and a lower chord member 2, and a U-shaped damper connects the lower chord member 2 and the bracket 3; the two chords, upper chord 1 and lower chord 2, remain parallel.
The U-shaped damper is installed at the joint of the lower chord 2 and the bracket 3, the U-shaped damper comprises an upper U-shaped damper cover plate 4 and a lower U-shaped damper cover plate 5, and the upper U-shaped damper cover plate 4, the bracket 3, the lower chord 2 and the lower U-shaped damper cover plate 5 are sequentially arranged at the joint from top to bottom. The U-shaped damper upper cover plate 4 and the U-shaped damper lower cover plate 5 are both provided with U-shaped protrusions, so that the effects of deformation and energy consumption are achieved; the U-shaped damper upper cover plate 4 and the U-shaped damper lower cover plate 5 are provided with the same circular bolt holes, and the positions of the circular bolt holes correspond to the positions of the chord members and the bolt holes on the bracket 3; the whole component is fixed into a whole through the nut 6 and the gasket 7 in a matching mode, so that the U-shaped damper is the main energy consumption position in an earthquake.
The upper chord 1 and the lower chord 2 in this embodiment are T-section steel.
After the earthquake, only the friction U-shaped damper needs to be disassembled, and whether the friction plate needs to be replaced or not is checked; in the post-earthquake inspection or repair process, the operation is simple, the period is short, and the device can be used in time.
Claims (1)
1. The bending steel truss connecting beam with the U-shaped damper and capable of being quickly recovered after earthquake is characterized by comprising a chord member, a bracket (3), the U-shaped damper, an inclined connecting rod, a vertical connecting rod and a vertical end rod;
the chord members comprise an upper chord member (1) and a lower chord member (2), and are of T-shaped structures; two ends of the upper chord (1) are fixed on the vertical end rods, and the upper chord (1) and the lower chord (2) are connected into a whole through the inclined connecting rod and the vertical connecting rod;
one end of the bracket (3) is fixedly connected to the vertical end rod, and the other end of the bracket is connected with the lower chord (2) through the U-shaped damper;
the U-shaped damper comprises two U-shaped damper upper cover plates (4) and one U-shaped damper lower cover plate (5), the two U-shaped damper upper cover plates and the two U-shaped damper lower cover plates are consistent in structure and are provided with U-shaped protrusions, and the effects of deformation and energy consumption are achieved; the U-shaped damper upper cover plate (4) and the U-shaped damper lower cover plate (5) respectively cover the upper end face and the lower end face of the bracket (3) and the lower chord (2), so that U-shaped bulges of the U-shaped damper upper cover plate (4) and the U-shaped damper lower cover plate (5) are ensured to correspond to the gap position between the bracket (3) and the lower chord (2); the U-shaped damper upper cover plate (4) and the U-shaped damper lower cover plate (5) are fixed on the bracket (3) and the lower chord (2) through the matching of a bolt (6) and a gasket (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922226130.8U CN211396271U (en) | 2019-12-13 | 2019-12-13 | Bending steel truss connecting beam with U-shaped damper and capable of being quickly recovered after earthquake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922226130.8U CN211396271U (en) | 2019-12-13 | 2019-12-13 | Bending steel truss connecting beam with U-shaped damper and capable of being quickly recovered after earthquake |
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| Publication Number | Publication Date |
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| CN211396271U true CN211396271U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922226130.8U Active CN211396271U (en) | 2019-12-13 | 2019-12-13 | Bending steel truss connecting beam with U-shaped damper and capable of being quickly recovered after earthquake |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847494A (en) * | 2019-12-13 | 2020-02-28 | 大连理工大学 | Bending steel truss connecting beam with U-shaped damper and capable of being quickly recovered after earthquake |
| CN112112474A (en) * | 2020-09-21 | 2020-12-22 | 广东电网有限责任公司电力科学研究院 | Power transmission tower cross arm structure capable of reducing vibration and energy consumption |
| CN114457931A (en) * | 2022-03-18 | 2022-05-10 | 中南大学 | Novel self-resetting anti-seismic steel truss girder |
-
2019
- 2019-12-13 CN CN201922226130.8U patent/CN211396271U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847494A (en) * | 2019-12-13 | 2020-02-28 | 大连理工大学 | Bending steel truss connecting beam with U-shaped damper and capable of being quickly recovered after earthquake |
| CN112112474A (en) * | 2020-09-21 | 2020-12-22 | 广东电网有限责任公司电力科学研究院 | Power transmission tower cross arm structure capable of reducing vibration and energy consumption |
| CN112112474B (en) * | 2020-09-21 | 2022-03-29 | 广东电网有限责任公司电力科学研究院 | Power transmission tower cross arm structure capable of reducing vibration and energy consumption |
| CN114457931A (en) * | 2022-03-18 | 2022-05-10 | 中南大学 | Novel self-resetting anti-seismic steel truss girder |
| CN114457931B (en) * | 2022-03-18 | 2022-09-23 | 中南大学 | Novel self-resetting anti-seismic steel truss girder |
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