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Two-stage performance target self-resetting friction type energy consumption support

An energy-consuming support and self-resetting technology, which is applied to building types, building components, earthquake resistance, etc., can solve problems such as fracture, failure to prevent overall collapse of life safety, support failure, etc., to achieve clear energy consumption mechanism, reliable self-resetting ability, The effect of stabilizing energy consumption

Active Publication Date: 2019-04-19
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the self-resetting ability of the current self-resetting technology only relies on the provision of pre-tightened core components in a single working stage (that is, the stress states of all core components are basically the same).
Once the earthquake level exceeds the design level, the above-mentioned components in the same working state are likely to break at the same time due to excessive deformation, resulting in failure of the support and no longer being able to provide lateral force for the structure; it is impossible to prevent possible life-threatening damage to the structure overall collapse

Method used

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  • Two-stage performance target self-resetting friction type energy consumption support
  • Two-stage performance target self-resetting friction type energy consumption support
  • Two-stage performance target self-resetting friction type energy consumption support

Examples

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Effect test

Embodiment 1

[0042] like figure 1As shown, a two-stage performance target self-resetting energy consumption support includes a self-resetting mechanism 100 , an energy consumption mechanism 200 , and a connecting force transmission mechanism 300 . During the installation process, the inner sleeve 302 is first placed in the outer sleeve 301, and then the end plate 307 is placed on both ends of the inner sleeve 302 and the outer sleeve 301, and is in contact with the ends of the inner and outer sleeves 301, and finally The self-resetting cable assembly is anchored to the end plate 307 in a tight state, and the self-resetting cable assembly is anchored to the end plate 307 in a relaxed state.

[0043] Subsequently, if figure 2 As shown, there are four stoppers 306, which are connected to the inner casing by welding or other means to control the relative positional relationship between the inner and outer casings, wherein the shape memory alloy cable-101 and the connecting rod-103 (can High...

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Abstract

The invention relates to a two-stage performance target self-resetting friction type energy consumption support which comprises a connecting power transmission mechanism, a self-resetting mechanism and an energy consumption mechanism. Compared with the prior art, a shape memory alloy cable with two-stage working states and a high-strength steel bar serve as a core tension component to provide self-resetting driving force and a certain energy consumption capability for a structure, main energy consumption capability is provided by the aid of a friction type energy consumption device, the resetting capability of the support under an extreme earthquake is furthest ensured by the aid of reasonable construction design, and structural collapse and the like caused by failure of the support are prevented.

Description

technical field [0001] The invention belongs to the technical field of high-performance anti-side support, and relates to a two-stage performance target self-resetting friction type energy consumption support. Background technique [0002] Bracing is widely used in the field of civil engineering as a lateral component of building structures, but traditional bracing will lose its function due to excessive residual deformation and buckling of core components after strong earthquakes. For this reason, there are PT-type braces that can provide a certain self-recovery ability to reduce residual deformation and BRB braces that prevent buckling of the braces, but the PT-type braces have insufficient ductility and are prone to fracture under large deformation; After the earthquake, there are still relatively large residual deformations. [0003] In order to reduce post-earthquake damage and deformation of the structure, a new technology is to use the restoring force provided by the...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 陈俊百王伟方成
Owner TONGJI UNIV
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