损伤型钢混凝土异形柱框架抗震性能试验研究  

Experimental study on seismic behaviors of damaged steel reinforced concrete frame with special-shaped columns

作　　者：刘祖强[1] 薛建阳[1] 赵鸿铁[1] 隋 

机构地区：[1]西安建筑科技大学,陕西西安710055

出　　处：《土木工程学报》2013年第8期67-73,共7页China Civil Engineering Journal

基　　金：国家自然科学基金(50978217);教育部高等学校博士学科点专项科研基金(20096120110005);广西防灾减灾与工程安全重点实验室开放课题资助(2012ZDK01);陕西省留学人员科技活动择优资助项目(陕外专发[2010]26号);长江学者和创新团队发展计划资助项目

摘　　要：为研究损伤型钢混凝土(SRC)异形柱框架的抗震性能,对1榀两跨三层的框架模型进行拟动力试验,分析该结构在水平地震作用下的动力响应、滞回特性、刚度等性能。结果表明:损伤SRC异形柱框架再次遭受地震作用时,首先从损伤严重的部位开始破坏;滞回曲线较为饱满,具有一定的承载能力、耗能能力和抗倒塌能力;刚度较小,当地震作用不大时层间变形较大。损伤指标不大于0.8的SRC异形柱框架,能够承受8度基本烈度的地震作用而不发生倒塌。研究可为SRC异形柱框架的工程应用提供参考。In order to investigate the seismic behaviors of damaged Steel Reinforced Concrete （SRC） frames with special-shaped columns, pseudo-dynamic test was conducted on a model of two-bay and three-story. The mechanical behaviors, such as dynamic response, hysteretic property and stiffness were analyzed. Test results show that when the damaged SRC frame with special-shaped columns experiences earthquake again, the damage starts at the heavily damaged position. The hysteretic loops are full, and the capacity of bearing, energy dissipation and collapse resistance are high. The stiffness is small, so that the story drift is large when the earthquake action is not strong. The damaged SRC frame with special-shaped columns, whose damaged index is not greater than 0.8, does not collapse under the 8 intensity intermediate action. This study can provide reference for the application of SRC frame with special-shaped columns in practical engineering.

关 键 词：损伤 型钢混凝土 异形柱框架 抗震性能 拟动力试验 

分 类 号：TU398.9[建筑科学—结构工程] U312.1[交通运输工程]