摘要
综合考虑了结构双重非线性因素，对该桥的极限承载力进行了深入研究。分析研究表明，对此类桥梁进行极限承载力分析时，材料非线性比几何非线性更为重要；加强拱脚处的拱肋及缀板能显著提高结构的承载能力。
Considering geometric and material nonlinear, the ultimate load capacity of CFST arch bridge at usage is analyzed. The results show that material nonlinear is more important than geometric nonlinear in ultimate capacity analysis. The elastic-plasticity stability can be improved remarkably to reinforce the arch rib and compose plane in the foot of the arch.
出处
《山西建筑》
2006年第2期254-255,共2页
Shanxi Architecture
基金
铁道部科技发展项目（项目编号：2003G035）
关键词
几何非线性
材料非线性
极限承载力
geometric nonlinear, material nonlinear, ultimate load capacity
