配置强格构式型钢混凝土柱的抗震性能试验研究
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赵仕兴1,曾广吉2,朱洪正2,傅剑平2(1 四川省建筑设计院, 成都 610017;2 重庆大学山地城镇建设与新技术教育部重点实验室, 重庆 400045)[摘要]通过缩尺比为1/5的5个大跨高比配置强格构式型钢混凝土柱和1个实腹式型钢混凝土柱在水平低周反复荷载作用下的试验,获得了各试件发生正截面破坏的荷载位移滞回曲线;分析了各试件的延性、极限位移角及耗能性能。结果表明,带缀板的强格构式型钢对核心区混凝土有更强的约束作用,所有试件破坏都表现为型钢屈服、混凝土压溃,表现出良好的延性。得出了轴压比、强格构式型钢布置形式对试件抗震性能的影响。[关键词]强格构式型钢混凝土; 低周反复荷载; 抗震性能; 轴压比中图分类号:TU398+.9文献标识码:A文章编号:1002848X(2013)12006205Experimental study on seismic performance of strong latticed steel reinforced concrete columnZhao Shixing1, Zeng Guangji2, Zhu Hongzheng2, Fu Jianping2(1 Sichuan Provincial Architectural Design Institute, Chengdu 610017, China; 2 Key Laboratory of New Technology forConstruction of Cities in Mountain Area of Chongqing University, Chongqing 400045, China)Abstract:At the scale ratio of 1/5, five strong latticed steel reinforced concrete columns with big spandepth ratio and one fullweb steel reinforced concrete column were tested subjected to horizontal low cyclic loading. In the case of cross section damage, the loaddisplacement hysteresis curves of each specimen were obtained. The ductility, limiting displacement drift and energy dissipation ability of specimens were analyzed. Results show that the strong latticed steel with batten plates has strong restriction effect on the core concrete and that the destruction features of the specimens are yielding of steel and crushing of the concrete, which exhibits good ductility. The effects of axial compression ratio and strong latticed steel arrangements on seismic performance of the specimens were obtained.Keywords:strong latticed steel reinforced concrete; low cyclic loading; seismic performance; axial compression ratio作者简介:赵仕兴,工程硕士,副总工程师,英国注册工程师,Email:zhaosx1@163.com。参考文献[1]日本建筑学会. 铁骨铁筋コンクリート构造计算标准[S]. 2版. 日本建筑学会, 1963.[2]日本建筑学会. 铁骨铁筋コンクリート构造计算标准·同解说[S]. 日本建筑学会, 1975.[3]臧安明,杨宏强,陈风扬,等. 偏心受压劲性钢筋砼(外包砼格构柱)的研究与设计[C]//第二届学术讨论会论文集,1990:593599.[4]石启印.空腹式型钢砼柱的抗震性能研究[J]. 陕西工学院学报,1996,12(1):8490.[5]徐坚如.劲性钢筋混凝土(SRC)结构研究[J]. 铁道标准设计,1996(1):3638.[6]四川省建筑设计院. 成都珠江国际城A4栋格构式型钢混凝土柱抗震性能试验及模拟分析研究报告[R]. 成都:四川省建筑设计院, 2012.[7]YB 9082—2006钢骨混凝土结构设计规程[S].北京:冶金工业出版社, 2006.[8]JGJ 138—2001型钢混凝土组合结构技术规程[S].北京:中国建筑工业出版社,2001.