摘要
根据9根钢筋混凝土不等肢异形柱在低周反复荷载作用下抗剪性能试验研究,分析了翼缘尺寸对异形柱抗剪承载力的影响。采用桁架-拱模型理论对异形柱的受力进行了分析。结果表明:异形柱的剪力分别由桁架机构和拱机构承担,由于翼缘部分参与抗剪作用,可以提高异形柱的抗剪承载力。基于桁架-拱模型,推导出考虑翼缘影响的异形柱抗剪承载力计算公式,通过与试验数据的比较发现,两者吻合较好。
Nine specially shaped reinforced concrete （RC） columns with different limb lengths were tested under low reversed cyclic loadings. The influence of the flange on the shear resistance of specially shaped RC columns was studied. The truss-arch model is also used to study the stress of specially shaped columns at their ultimate shear limit state. The results show that the shear resistance is composed of two parts contributed by a truss model and an arch model, and the flange can promote the shear bearing capacity of specially shaped columns for it participates in the truss-arch action. At last, a formula based on the truss-arch model is presented to calculate the shear resistance of specially shaped RC columns by considering the flange. The calculated values are in good agreement with the experimental results.
出处
《工程力学》
EI
CSCD
北大核心
2009年第5期197-201,共5页
Engineering Mechanics
作者简介
黄承逵（1941-），男，辽宁人，教授，博导，从事混凝土结构和纤维混凝土结构理论研究，已有建筑桥梁和港口等工程结构的检测评定和病害处理技术研究（E-mail：huangek@dlut．edu．cn）；
曲福来（1977-），男，辽宁人，讲师，博士，从事混凝土结构研究（E-mail：qufulai@163．com）；
徐士弢（1979-），男，辽宁人，助理工程师，硕士，从事结构设计研究（E-mail：xst1228@sina．com）．
