【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。更多还原

【Abstract】 Lightweight framed structures with specialshaped R.C. columns are applied widely in recent years. In the paper,the method of nonlinear analysis of specialshaped R.C. columns is put forward while the full path of stressstrain relation of concrete and the sliding of longitudinal reinforcement anchoring are all considered. A computer program for a full range analysis of specialshaped columns is complied. Based on the analytical results of 22 sets of Lshaped, Tshaped and ’+’ shaped columns, the ductile behavior of the columns is investigated while the ’M-φ’ curves are analyzed and compared.更多还原