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Modular high-performance soft steel lead-core rubber energy dissipater

A technology of lead-core rubber and lead-core rubber bearings, which is applied in the field of modular high-performance mild steel lead-rubber energy dissipators, can solve the problems of single energy consumption principle, increase energy consumption efficiency, and improve pressure stability , the effect of uniform force

Inactive Publication Date: 2017-02-22
INST OF ENG MECHANICS CHINA EARTHQUAKE ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy dissipators in existing coupling beams usually only use mild steel as a material, and the principle of energy dissipation is single

Method used

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  • Modular high-performance soft steel lead-core rubber energy dissipater
  • Modular high-performance soft steel lead-core rubber energy dissipater
  • Modular high-performance soft steel lead-core rubber energy dissipater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Modular high-performance mild steel lead rubber energy dissipator, including two fixed plates 4, lead rubber support 2, and energy dissipation components arranged on both sides of the lead rubber support; the energy dissipation component is composed of multiple mild steel The two ends of a plurality of soft steel sheets 1 are fixed on the fixed plate 4 by a pair of L-shaped splints 3, and the two ends of the lead rubber bearing 2 are also fixed on the fixed plate 4.

Embodiment 2

[0030] The difference between this embodiment and Embodiment 1 is that the mild steel sheets are made of steel with low yield strength, and the multiple mild steel sheets are clamped by a pair of L-shaped splints 3 and bolts passing through them, and fixed by the bolts. The plates 4 are connected, and a plurality of mild steel sheets are tightly fitted. This setting makes the distribution of internal force more uniform under earthquake action, which is beneficial to avoiding the first failure of individual mild steel sheets due to excessive local stress, which will seriously weaken the bearing capacity and energy dissipation capacity of the entire energy dissipation component.

Embodiment 3

[0032] The difference between this embodiment and Embodiment 2 is that the middle part of the mild steel sheet is an energy-dissipating part, on which a plurality of diamond-shaped holes are arranged, and the energy-dissipating part forms a continuous X-shaped steel sheet. The effective width of the energy-dissipating section of the mild steel sheet increases linearly from the middle to both sides. In order to avoid stress concentration in the middle of the mild steel sheet, a certain effective width remains unchanged in a small area in the middle.

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Abstract

A modular high-performance soft steel lead-core rubber energy dissipater relates to an energy dissipater. It is intended to provide damping for a connecting beam under seismic action and adjust bearing capacity of the connecting beam, thereby internal force action and destruction mode undertaken by the connecting beam under seismic action in order to adjust internal force distribution and damage distribution of a whole structure. The modular high-performance soft steel lead-core rubber energy dissipater comprises two fixing plates, a lead-core rubber support, and energy-dissipating components disposed on two sides of the lead-core rubber support; each energy-dissipating component is composed of a plurality of soft steel plates that are fixed to the fixing plates through an L-shaped clamp plate, and the lead-core rubber support is also fixed to the fixing plates. Soft steel and lead are used as main energy-dissipating materials, such that energy-dissipating capacity and efficiency of the damper are improved. Through novel structural form, the energy dissipater prevents early destruction of edge energy-dissipating sheets under the action of bending moment. By using the lead-core rubber support, it is avoided that bearing capacity is decreased due to soft steel buckling and instability when the damper is under excessive axial pressure, and connecting beam axial force is more effectively transmitted under seismic action.

Description

technical field [0001] The invention relates to an energy dissipator installed in the middle of a connecting beam, in particular to a modular high-performance mild steel lead rubber energy dissipator. Background technique [0002] With the in-depth study of the failure mechanism of civil engineering structures under earthquake action, behavior-based seismic design ideas have been applied to new construction projects. At the same time, the post-earthquake functional structural system can be quickly restored, that is, the post-earthquake civil engineering structure can restore its function without repair or only a little repair, which is also developed under the guidance of the idea of ​​behavior-based earthquake engineering. up. The shear wall structure is an important structural system in the building structure, and it is most widely used in high-rise residential buildings, and the coupling beam is an important component in the shear wall structure system, which directly af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 戴君武刘永彬景铭
Owner INST OF ENG MECHANICS CHINA EARTHQUAKE ADMINISTRATION
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