摘要
采用双剪应力三参数强度准则和刚塑性模型 ,对混凝土板轴对称冲切强度进行了分析 ,给出了轴对称破坏机构 ,得到极限应力圆的包络线为二条直线 ,利用虚功原理求得破坏荷载的上限。公式形式简洁 ,与已有结果相比符合较好。
In this paper, the axisymmetrical ultimate punching strength of concrete slabs is obtained by using three parameters criterion of the twin shear strength theory and rigid plastic model. The axisymmetrical failure mechanism is given and the envelope of failure Mohr circles is found to be two straight lines. Then, the upper bound of ultimate punching strength is obtained by the virtual work equation. The numerical results are in good agreement with the known ones. [
出处
《建筑科学》
2000年第5期17-19,35,共4页
Building Science
关键词
双剪强度理论
混凝土板
轴对称冲切强度
twin shear strength
concrete slab
axisymmetrical punching strength
