摘要
基于有限元理论,考虑结构的几何非线性和材料非线性,以戴河大桥为例,建立了下承式钢管混凝土拱桥的计算模型,运用ANSYS软件对该桥的拱肋施工过程和全桥建成后整体的稳定性进行了研究,分析结果表明:戴河大桥整体稳定安全系数相对于同类钢管混凝土拱桥较大;戴河大桥的面内刚度大于面外刚度,且材料非线性对稳定性的影响显著.这些结论对类似桥梁的设计和施工具有较好的参考价值.
Based on the finite element theory,taking the Daihe bridge for example,considering both geometrical non-linearity and material nonlinearity,this paper proposes the computation model of the through-type concrete filled steel tube arch bridge.This paper studies the bridges’ arch rib construction process and the overall stability of the entire bridge using the ANSYS software.The results show that the safety factor of the entire bridge stability of the Daihe bridge is larger than similar concrete-filled steel tube arch bridges.The internal face stiffness of Daihe bridge is larger than its external stiffness,and material nonlinearity has significant impact on the stability.It is of reference value for the similar bridge design and construction.
出处
《天津城市建设学院学报》
CAS
2011年第1期15-20,共6页
Journal of Tianjin Institute of Urban Construction
基金
中铁六局集团有限公司科技研究项目(2010-1-A04)
关键词
戴河大桥
钢管混凝土拱桥
ANSYS
稳定性分析
非线性
Daihe bridge
the concrete filled steel tube arch bridge
ANSYS
stability analysis
nonlinearity
