摘要
结合四川在建的新民岷江特大连续刚构桥工程实例,考虑结构的几何非线性、材料非线性和初始缺陷,对该桥最大悬臂施工状态下结构的稳定性进行了数值分析。计算得到了该状态下结构的稳定系数、屈曲模态和墩底截面的极限承载力,并提出了大桥施工过程中加强稳定性的措施。
Based on the geometric nonlinear,material nonlinear of structure and initial defect,the spatial finite model was established for Stability analysis of xin min min jiang continuous rigid frame Bridge at the stage of its longest double cantilevers in SiChuan.The structure＇s stability factor、buckling modes and the ultimate bearing capacity at the bottom piers was obtained by calculation,and the paper put forward the measures for increasing the structure＇s construction stability.
出处
《交通科技》
2010年第1期7-9,共3页
Transportation Science & Technology
关键词
大跨连续刚构桥
几何与材料非线性
稳定分析
极限承载力
long span continuous rigid frame bridge
geometric and material nonlinear
stability analysis
ultimate bearing capacity
