T形配钢钢骨混凝土柱恢复力特性试验  

Experiment of restoring force characteristics of steel reinforced concrete columns with T-shaped steel layout

作　　者：曾磊[1] 林伟[2] 龚倩倩[1] 陈娟[1] 崔振坤[1] 

机构地区：[1]长江大学城市建设学院,湖北荆州434023 [2]福州大学土木工程学院,福建福州350116

出　　处：《兰州理工大学学报》2017年第3期127-132,共6页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(51108041;51378077);湖北省自然科学基金(2016CFB604);湖北省教育厅科学研究计划重点项目(D20161305)

摘　　要：为了研究地震作用下T形配钢钢骨混凝土柱的滞回特性和恢复力特性,前期已完成了12根T形配钢钢骨混凝土柱的拟静力试验,得到了其在低周反复荷载作用下的滞回曲线和骨架曲线;基于上述试验的结果建立适合T形配钢钢骨混凝土柱的三折线骨架曲线模型,并对骨架曲线模型及各关键点、正负向加载和卸载刚度退化规律、滞回规则进行数学描述.将实测骨架曲线与模型骨架曲线进行比较,吻合较好.In order to study the hysteresis behavior and restoring force characteristics of steel reinforced concrete columns with T-shaped steel layout subjected to earthquake,aquasi-static experiment on 12 columns with T-shaped steel layout has been completed early,and the hysteresis curve and skeleton curve of the columns under low-frequency reciprocal loading were obtained.Based on the foregoing experimental result,a triple-broken-line skeleton curve model suitable for the column with T-shaped steel layout was built up,and the skeleton curve model,its key points,hysteretic rule,and rule of rigidity degeneration due to right and opposite oriented of positive and negative to loading and unloading were mathematically described.It was found by comparing the measured skeleton curve with the modelled one that both they were well coincident with each other.

关 键 词：T形配钢 钢骨混凝土柱 恢复力特性 

分 类 号：TU312[建筑科学—结构工程] TU398.9