考虑薄膜效应钢筋混凝土矩形板的极限承载力  

Ultimate Bearing Capacity of RC Rectangular Slab Considering Membrane Effect

作　　者：张先进[1] 李永春[1] 吕曼曼[2] 

机构地区：[1]华中科技大学土木工程与力学学院 [2]北京航空航天大学土木工程系,北京100083

出　　处：《武汉理工大学学报》2007年第6期58-61,共4页Journal of Wuhan University of Technology

摘　　要：基于塑性铰线理论给出水平受约束矩形板的破坏模型,由虚功原理推导出考虑薄膜效应情况下钢筋混凝土矩形板的极限承载力公式,其中平均受压区高度为待定参数,通过用Matlab对非线性有限元程序计算的结果进行了非线性回归分析确定。对比分析表明,该公式与试验值吻合程度良好。Based on plastic yield line theory the failure model of horizontal restrained rectangular .slab was given. By applying principle of virtual work, the formula of horizontal restrained rectangular slab for calculation of limit bearing capacity was derived. The average compression zone height needed to be determined. By nonlinear regression of the results with MATLAB, the formula of compression zone depth could be obtained. Comparative analysis showed that the formula was in good agreement with experimental values.

关 键 词：薄膜效应 矩形板 塑性铰线理论 有限元分析 极限承载力 

分 类 号：TU375.2[建筑科学—结构工程]