集中荷载作用下点支承单格板的塑性极限分析

Plastic limit analysis of the corner supported single rectangular non beam slab with concentrated load

应用塑性理论对集中荷载作用下的点支承单格无梁板作分析。采用塑性铰线理论，对三种可能的塑性铰线形式分别进行分析，得到极限承载力的解析式。同时给出两个方向相同极限弯矩的正方形板的破坏图式及极限承载力。

Plastic theory is applied to analyse the corner supported single rectangular non beam slab with concentrated load in this paper.Using plastic yield line theory,three yield line patterns are an alysed and the formulas of the ultimate bearing capacity are obtained.In addition,the failure patterns and ultimate bearing resistance for the square slab with the same ultimate bending moment in two directions are given.