摘要
为了给实际工程结构中装配式H型钢防屈曲支撑检修和更换周期的制定提供理论依据,基于已有试验结果结合理论分析,提出了装配式H型钢防屈曲支撑的疲劳寿命计算方法。研究发现设置截面均匀过渡的中间限位装置能够显著提高装配式H型钢防屈曲支撑的疲劳寿命,采用文中所提的疲劳寿命计算公式及损伤累积法则可以较为准确地预测装配式H型钢防屈曲支撑的疲劳寿命。
To provide theoretical basis for determining the maintaining and replacement period of an assembled buckling-restrained brace with H-section steel core(AHBRB)in practical application,a fatigue life evaluation method for AHBRB is proposed in this paper based on available test results and theoretical analysis.It is found that setting stopper with gradually changed cross section in the middle of H-section steel core can improve the fatigue performance of AHBRB significantly.The fatigue life of AHBRB can be well predicted by the proposed evaluation method combined with damage accumulation criterion.
作者
金晓飞
韩伟
崔婧瑞
李伟
Jin Xiaofei;Han Wei;Cui Jingrui;Li Wei(China Construction First Group Co.,Ltd.,Beijing 100161,China;Beijing Baoruisi Damping Technology Co.,Ltd.,Beijing 100160,China;School of Civil Engineering,Yantai University,Yantai 264005,China)
出处
《山西建筑》
2022年第17期58-60,80,共4页
Shanxi Architecture
基金
中建股份科技研发计划(课题编号:CSCEC-2020-Z-35)。
关键词
防屈曲支撑
装配式
H型钢
疲劳寿命
buckling-restrained brace
assembled
H-section steel
fatigue life
