摘要
基于剪切屈服型Y形高强钢组合偏心支撑框架低周往复加载试验的试验结果,通过理论分析,得到了以屈服点和极限点为特征点并且考虑刚度退化的双折线恢复力模型,并给出了各特征点参数和各阶段刚度的计算公式.分析结果表明:由该恢复力模型计算所得曲线与试验曲线较为接近,可为剪切屈服型Y形高强钢组合偏心支撑框架结构抗震性能评估和动力弹塑性分析提供参考.
The hysteretic behavior of Y-eccentrically braced frame with high strength steel combination（Y-HSS-EBF） which has shear link was studied according to the test of Y-HSS-EBF specimens under the cyclic loads. The restoring force model of Y-HSS-EBF is established based on the experimental results and theoretical analyses. A two-linear skeleton curve model with stiffness degradation which was defined through yield point and ultimate point was proposed. The formula for calculating the points are recommended through theoretical analyses. The results indicate that the calculated restoring force model is sufficient to agree with the experimental results, which can be applied to estimate the seismic performance and non-linear analysis of Y-HSS-EBF with shear link.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2015年第5期684-688,716,共6页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
"十二五"科技支撑计划课题基金资助(2013BAJ10B03-0)
关键词
偏心支撑
高强钢
恢复力模型
刚度退化
双折线模型
eccentrically braced frame（EBF）
high strength steel（HSS）
restoring force model
stiffness degradation
two-linear skeleton curve model
