地震作用下约束屈曲支撑损伤量的数值分析

英文篇名：Numerical Analysis of the Damage Quantity of Buckling-Restrained Braces under Earthquake Action
中文刊名：甘肃科学学报
英文刊名：Journal of Gansu Sciences
作者：朱彦鹏 ; 张宪江
英文作者：ZHU Yan-peng ; ZHANG Xian-jiang(School of Civil Engineering ; Lanzhou University of Technology ; Lanzhou 730050 ; China)
中文关键词：能量理论 ; 损伤量 ; 约束屈曲支撑 ; 时程分析 ; 数值分析 ; ANSYS
英文关键词：energy theory ; damage quantity ; buckling-restrained braces(BRBs) ; time-history analysis ; numerical analysis ; ANSYS
出版日期：2007-12-25
机构：兰州理工大学土木工程学院,兰州理工大学土木工程学院甘肃兰州730050,甘肃兰州730050
年：2007
期：04
出版单位：甘肃科学学报

摘要

(BRBs)以能量理论为基础,阐明了约束屈曲支撑BRBs损伤量的涵义,提出了适合框架结构的单自由度BRBs损伤量的分析模型,并利用有限元软件ANSYS8.0对所建立的模型进行了非线性动力时程分析,得到了BRBs的地震动力响应,并推导建立了实用的BRBs损伤量的计算模型,通过MATLAB编程计算,得出了地震作用下BRBs的损伤量.
The energy dissipation design method has received more attention by engineering circle.Nowadays,the buckling-restrained braces(BRBs) are used in higher structures being dissipation energy components.So, it is very necessary to determine the damage quantity of BRBs under earthquake. Firstly,the meaning of the damage quantity of BRBs is clarified based on the energy theory.Secondly,a single-degree of freedom analyses model which is suitable to the frame structure is proposed.The nonlinear dynamic time-history analysis of BRBs system is carried out by using FEM software of ANSYS-8.0,and seismic response of BRBs is obtained.Finally,a practical calculation model of the Damage quantity of BRBs is established.Using MATLAB software,the Damage quantity of BRBs is obtained.

引文

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