开洞钢筋混凝土双向板极限承载力分析

ANALYSIS FOR ULTIMATE RESISTANCE OF REINFORCED CONCRETE SLABS WITH OPENING

运用理论分析和工程实践相结合的方法,采用屈服塑性理论,分析讨论了钢筋混凝土开洞双向板在均布荷载下的极限承载力,并通过典型的工程实例分析对比表明,利用刚体的极限平衡条件及虚功原理,计算出不同开洞比下双向板的极限承载力降低系数。通过计算分析结果与已有的实验数据吻合较好,文章介绍的方法简单易用,理论计算出的结果可直接用于工程实践,为工程结构设计人员提供参考。

Using the theoretical analysis and engineering practice,the total combined method of using yield plasticity theory,this paper analyzes and discusses the reinforced concrete open hole two-way board under the uniformly distributed load of ultimate resistance,and through the typical engineering example analysis and comparison,uticlizes the rigid body limit equilibrium conditions and the virtual work principle,calculates the different open hole under the limit bearing capacity reduced two-way board the coefficient.Improved the literature,this paper creates simplified analysis method of theoretical calculation and easy to use,the results can be applied directly to the engineering practice and provide the reference for engineering structure designers.