【摘要】 通过系统理论分析和规范背景资料的研究,指出了现行规范关于轴压比限值的规定存在的诸多不足;分析了影响轴压比限值的各种因素,并指出了如何考虑各种因素影响;在现行规范中的基本假定的基础上推导出了考虑各种影响因素下(抗震等级三级下)框架矩形砼柱的轴压比限值的适用公式,根据以往试验资料表明,本文公式比现行规范规定更合理.更多还原

【Abstract】 With a theoretical analysis and study in the background knowledge of criteria,some deficiencies are found in the ultimate axial compression ratio for R.C.columns in the present Design Code For Concrete Structure or the other criteria.The paper analyses the factors that influence the ultimate axial compression ratio for R.C.columns and tells a way of how to amount them in.On the basis of assumptions of the present criteria,a more rational formula about the ultimate axial compression ratio for R.C.columns is given.更多还原