摘要
为了检验端部不同连接构造方式对于屈曲约束支撑力学性能的影响,分别设计了加宽翼缘、腹板焊接钢板两种加劲肋布置方式,共计3个试件。通过拉压循环荷载作用下的滞回性能试验,分析屈曲约束支撑的耗能能力、疲劳性能以及累积塑性延性。研究结果表明,两种加劲肋布置方式的屈曲约束支撑滞回曲线饱满,滞回性能稳定,耗能性能优良;加宽翼缘的屈曲约束支撑的耗能及变形能力更好。
In this paper,we designed three specimens in two types of stiffener arrangements:widened flange and welded steel plate in the web,in order to examine the effect of different connection configurations on the mechanical properties of buckling restrained brace.Through the hysteresis performance tests,we analyzed,under tensile and compressive cyclic loading,the energy dissipation capacity,fatigue performance and cumulative plastic deformation capacity of the buckling restrained brace.The results show that buckling restrained brace with two stiffener arrangements has full hysteresis curves,with stable hysteresis performance and excellent energy dissipation performance;the specimen with the stiffener arrangement of the widened flange has a more pronounced energy dissipation capacity and deformation capacity.
作者
石文龙
杨梦霞
吴凯琪
马佳文
SHI Wenlong;YANG Mengxia;WU Kaiqi;MA Jiawen(School of Mechanics and Engineering Science,Shanghai University,Shanghai 200444,China;Office of Campus Development,Shanghai International Studies University,Shanghai 200083,China;Shanghai STEEL Damper Technology of Building Co.,Ltd.,Shanghai 200092,China)
出处
《结构工程师》
2023年第4期129-137,共9页
Structural Engineers
关键词
拟静力试验
加劲肋
滞回性能
耗能能力
pseudo-static test
stiffener
hysteretic performance
energy dissipation capacity
