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Theoretical Analysis and Experiment Study on Buckling-Restrained Brace

Author: ZhangXiaoMeng
Tutor: WangXiaoDun
School: Tianjin University
Course: Structural Engineering
Keywords: Buckling restrained brace Energy dissipation Stability Test Design method
CLC: TU352.11
Type: Master's thesis
Year: 2010
Downloads: 188
Quote: 0
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Abstract


An important content of the seismic design of building structures is to choose the lateral force resisting system . The frame structure to achieve good ductility, seismic performance is generally better . However, due to the earthquake horizontal deformation , could easily lead to the destruction of the non - structural elements . Frame - supporting system to a certain extent increase the level of pure framework lateral resistant capability , but in the earthquake occurs , the support easy compression buckling , resulting in the support itself or bad connections , is not conducive to the energy dissipation , while the traditional support by adding large support sectional area of ??the solution and resulting in the waste of material . To resolve this issue , experts and scholars have proposed a way to prevent compression buckling support , called buckling restrained brace . Through rational design , buckling restrained brace can be the first to yield strong earthquakes energy-consuming without buckling , showed good seismic performance . Buckling restrained brace the core technology of most of them are privately owned , and foreign general low yield point of steel as the core unit , less material supply , high prices , and therefore has not yet been a large-scale promotion in the country . The article first comprehensive introduction to the buckling restrained brace constitute the basic theory of the basic principle, classification , advantages and disadvantages . Followed by in-depth analysis of the mechanism of buckling restrained brace in the state of different designs , stability and buckling restrained brace derive the formula , including the overall stability of the part of the stability of the core unit and connection stability requirements . Buckling restrained brace for new research and development of low - carbon steel tube full scale test , and test data analysis , tests showed that the energy dissipation capacity of low carbon steel tube buckling restrained brace , made ??a number of other Problems recommendations. Combination of foreign and Chinese seismic design specifications for housing and eliminate energy dissipation design illustrate the main points , buckling restrained brace design methods from the basic requirements , design features , support arrangement , design process , to provide engineering personnel with a certain reference. Finally, the buckling restrained brace in the development and application of home and abroad , and raised a number of issues and suggestions of further research , the application , the promotion of anti- buckling support , the prospects of future trends .

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CLC: > Industrial Technology > Building Science > Building structure > Special Structure > Anti - shock structure,disaster prevention structures > Shock, isolation, and explosion-proof structure > Seismic structure
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