金属拱型波纹屋盖结构的简化设计方法

A simplified design method for arched corrugated metal roof

金属拱型波纹屋盖结构在力学性能上具有很强的几何非线性,结构设计必须考虑几何非线性的影响。本文通过对这种结构进行线性和几何非线性对比分析,找到了两种计算结果之间的对应规律,从而提出了一套基于线性分析的简化设计方法。本文运用这套方法对若干实际工程进行了试设计,试设计结果证明了简化设计方法的合理性和可操作性。

Arched corrugated metal roof exhibits strong geometrical nonlinearity when loaded, which has often been ignored in structural design. Through the comparison analysis of linear analysis and nonlinear analysis, the rules of the relationship between the results of these two methods had been found, and a simplified design method based on linear analysis for this kind of structure was proposed by the authors of this paper. The reasonability and feasibility of this method were verified through the trial design of several practical projects.