摘要
通过对一榀底层为宽肢的钢筋混凝土异形柱框架与一榀底层为非宽肢的异形柱框架的抗震试验研究,重点对比了两种异形柱框架结构的破坏特征、承载能力、延性、滞回特性、出铰顺序及刚度退化等抗震性能.分析结果表明,底层采用宽肢异形柱后可避免普通异形柱框架结构底层刚度薄弱的不利现象,并能不同程度地改善普通异形柱框架结构的多项抗震性能,提高了异形柱框架结构整体的抗震能力.
Based on experimental research on the seismic behaviors of two frames, one with specially shaped columns, and the other with wide flange specially shaped columns on the first floor, the failure characteristics, bearing capacity, ductility, hysteresis properties, subsequence of hinge occurence and rigidity degeneracy of the two specimens were compared. The results show that the adoption of wide flange improves the rigidity of the columms on the first floor and correspondingly some other seismic behaviors of frame with normal specially shaped columns to resist the earthquake effectively.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2007年第7期791-798,共8页
Journal of Tianjin University(Science and Technology)
关键词
混凝土框架
异形柱
宽肢
低周反复荷载
抗震性能
RC frame
specially shaped column
wide flange
low frequency cyclic loading
seismic behavior
