论文部分内容阅读
从含初始弯曲的大挠度方程出发,以薄板厚度的折减量为摄动参数,将残余应力考虑成等效荷载,并通过参数分析的方法修正残余应力等效荷载,根据实用板与理想板的比拟,得出板的厚度折减量和板的极限承载力方程。非线性有限元分析和试验数据的对比表明:该文提出的方法实用、精度高,是分析板钢结构极限承载力的通用方法,可作为非线性有限元分析方法的补充,大大简化了结构极限承载力分析的复杂性。
Based on the large deflection equation with initial bending, taking the reduction of sheet thickness as the perturbation parameter, the residual stress is considered as the equivalent load and the residual stress equivalent load is corrected by the method of parameter analysis. According to the practical board and the ideal board The plate thickness reduction and the plate ultimate capacity equation. The comparison between the nonlinear finite element analysis and experimental data shows that the proposed method is practical and of high precision and is a general method for analyzing the ultimate bearing capacity of plate steel structures. It can be used as a supplement to the nonlinear finite element analysis method, greatly simplifying the structural limit The complexity of bearing capacity analysis.