摘要
设计了2根尺寸完全相同的全钢屈曲约束支撑(BRB)试件,1根试件未设无黏结层,另1根试件设无黏结层。对2根试件进行了低周往复试验,分析了无黏结层对全钢BRB破坏形式、滞回性能、等效粘滞阻尼比、拉压不平衡系数等的影响。结果表明:设无黏结层全钢BRB的疲劳性能略优于未设无黏结层全钢BRB;设无黏结层全钢BRB的拉压不平衡系数远小于未设无黏结层全钢BRB。
Two all-steel buckling-restrained brace(BRB)specimens with identical dimensions were designed in the experiment and only one specimen employed the unbonding layer.The low-cycle reciprocating test was carried out on two specimens to analyze the influence of non-bonding layer on the all-steel BRB failure form,hysteretic performance,equivalent viscous damping ratio,tension and pressure imbalance coefficient,etc.The results show that the fatigue performance of the all-steel BRB with bonding layer is slightly higher than that of the all-steel BRB without bonding layer.The tension and compression imbalance coefficient of the all-steel BRB with bonding layer is much lower than that of the all-steel BRB without bonding layer.
作者
张俊贤
白羽
刘洪义
ZHANG Junxian;BAI Yu;LIU Hongyi(School of Architectural Engineering,Kunming University of Science and Technology,Kunming 650500,China;Engineering Structure Seismic Mitigation and Isolation Technique Engineering Research Center of Yunnan Province,Kunming 650500,China)
出处
《四川建筑科学研究》
2021年第2期6-11,共6页
Sichuan Building Science
基金
国家自然科学基金(51368027)。
关键词
全钢屈曲约束支撑
摩擦系数
无黏结层
拟静力试验
all-steel buckling-restrained brace
friction coefficient
unbonding layer
quasi-static test
