SRC-RC转换柱滞回性能与变形能力试验研究  

Experimental Study on Hysteretic Performance and Deformation Ability of SRC-RC Transfer Columns

作　　者：伍凯[1,2] 薛建阳[1] 赵鸿铁[1] 刘义[1] 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]河海大学土木与交通学院,南京210098

出　　处：《武汉理工大学学报》2010年第9期218-221,共4页Journal of Wuhan University of Technology

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);陕西省教育厅自然科学专项基金(09JK551)

摘　　要：通过12个试件的低周反复荷载试验,研究了具有不同型钢延伸长度SRC-RC转换柱的抗震性能。具有不同型钢延伸长度的转换柱表现出不同的滞回性能和变形能力:随着型钢延伸长度的增加,强度衰减现象越发严重,滞回曲线向"捏拢"形发展;随着型钢延伸长度的增加,转换柱的极限侧移角呈现先升后降的变化规律,在延伸长度为0.6倍的柱高时达到最大值。所有试件的极限侧移角均超过0.02,满足相关规范的抗震要求,部分试件超过了0.03,表现出较好的抗倒塌能力。Hysteretic performance and deformation ability of SRC-RC transfer columns has been analyzed based on the experiment of 12 specimens under low cyclic reversed loading.Seismic behaviors of SRC-RC transfer columns are diversified with different extension length of shape steel.Degeneration of bearing capacity becomes much more obvious when extension length of shape steel increases.Ultimate rotation angle changes with increase of the extension length of shape steel,enhancing at first and then reducing,reaching peak value when extension length of shape steel gets close to three fifths of column height.Ultimate rotation angles of all specimens exceed 0.02,some even exceed 0.03 and the corresponding specimens possess advanced collapse resistance ability.

关 键 词：型钢混凝土 钢筋混凝土 转换层 柱 滞回性能 

分 类 号：TU398[建筑科学—结构工程]