摘要
全面考虑结构的材料非线性和几何非线性,通过对一座跨径160 m混凝土自锚式悬索桥进行全过程非线性分析,得到了结构的极限承载力。同时研究了材料非线性、加载方式、约束条件对结构极限承载力的影响。结果表明,混凝土自锚式悬索桥的弹塑性极限承载力远小于弹性极限承载力,中跨加载情况的极限承载力与全桥加载情况相差不大,但主缆锚固端主梁的约束情况对结构的极限承载力影响较大。
Based on nonlinear full-range analysis considering both geometrical and material nonlinearity, ultimate load-carrying capacity of a self-anchored concrete suspension bridge of 160 m in span is calculated, The research on effects of material nonlinearity, loading method, and restraint of bearing on ultimate load-carrying capacity of the structure indicate that the elastic ultimate load-carrying capacity is much greater than elastic-plastic one, and the difference between loading in whole bridge and loading in mid-span is little, and the effect of restraint of hearing is much great.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2006年第4期91-94,共4页
Journal of Wuhan University of Technology
关键词
混凝土自锚式悬索桥
极限承载力
几何非线性
材料非线性
self-anchored concrete suspension bridge
ultimate load-carrying capacity
geometrical nonlinearity
material nonlinearity
