摘要
本文通过12个较小剪跨比带暗柱的十、L、T形柱的抗震性能试验,分析了轴压比对十、L、T形柱的承载力、刚度、延性的影响,暗柱对提高异形柱抗震性能的作用,带暗柱异形柱的滞回特性,并建议了恢复力模型,比较了带暗柱异形柱与普通异形柱在破坏形态上的差异,提出了带暗柱异形柱的应用范围、设计方法及抗震构造措施,进行了异形柱的承载力计算,计算结果与实测值符合较好。
The +、L、T shaped columns with concealed columns are presented in this parer. Based on the tests of seismic behavior of 12 +、L、T shaped column specimens with smaller shear span ratio (λ=2.375), the influences of axial compression ratio on bearing capacity, stiffness, ductility and function of setting up concealed column in raising seismic capacities of +、L、T shaped columns are analyzed. On the basis of analyzing the hysteretic behavior of the specimens with concealed columns, the modeling of restoring force versus displacement for the +、L、T shaped columns with concealed columns is suggested In addition, the failure modes of the specimens with concealed columns are compared with those of the specimens without concealed columns, and the applied range, the design method and the seismic construction of the +、L、T shaped columns with concealed columns are proposed. Finally, the ultimate loads of all specimens have been calculated, and the theoretical calculation results agree well with the actual measured ones.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2002年第1期16-20,26,共6页
Journal of Building Structures
基金
国家"九五"重大攻关项目子专题(95920010301)
关键词
钢筋混凝土
暗柱
异形柱
抗震性能
试验
reinforced concrete,concealed column, specially shaped columns, seismic behavior
