摘要
异形柱框轻结构是近年来应用较为广泛的结构形式,文章提出了异形截面柱的非线性分析的方法,考虑了纵筋锚固滑移和混凝土本构关系的下降段,用数值方法编制了异形柱全过程分析的程序,并对3种截面、共22种情况进行了计算,分析比较M-φ曲线,得出延性的变化规律。
Lightweight framed structures with specialshaped R.C. columns are applied widely in recent years. In the paper,the method of nonlinear analysis of specialshaped R.C. columns is put forward while the full path of stressstrain relation of concrete and the sliding of longitudinal reinforcement anchoring are all considered. A computer program for a full range analysis of specialshaped columns is complied. Based on the analytical results of 22 sets of Lshaped, Tshaped and '+' shaped columns, the ductile behavior of the columns is investigated while the 'M-φ' curves are analyzed and compared.
引文
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