具有初始几何缺陷的混凝土拱稳定性分析

Analysis on the stability of concrete arch that has origin geometric default

以一计算跨径为130 m的箱形二次抛物线拱肋为例,用MATLAB语言编制程序计算分析具有初始几何缺陷不同矢跨比的拱肋在无风作用和十年一遇侧向风作用下的稳定系数,并比较分析了两种情况下的稳定性,得出一些有益于实践的结论,以供参考。

Setting the 130 m span boxed second-degree parabola arch rib as example, it calculates and analyses the stability coefficient of the arch rib of different vector and span ration that has origin geometric default in the action of no wind and the lateral wind that less happen, compares and analyses the stability in the two situation, and deduces the eonclusion that benefit the practice, can be referenced.