摘要
以某大跨径连续刚构桥为背景,利用Midas/Civil程序,计算分析了几何非线性和材料非线性对连续刚构桥稳定性的影响,同时探讨了不同阶段、不同荷载工况下结构失稳破坏的特点、形式以及极限承载力,得出该桥控制失稳的关键阶段是最大悬臂施工阶段的结论。
With some large span continuous steel bridge as background, the influences of geometrical nonlinear and material nonlinear on continuous steel bridge stability were calculated and analyzed with Midas/Civil program. The characteristics, forms and limit bearing capacities of structural instability damage under different sections and loading situations were discussed. The conclusion that the key section to control instability was maximum cantilever construction section was obtained.
出处
《山西建筑》
2009年第1期313-314,共2页
Shanxi Architecture
关键词
大跨径连续刚构桥
几何非线性
材料非线性
稳定性分析
large span continuous steel bridge, geometrical nonlinear, material nonlinear, stability analysis
