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下承式钢管混凝土拱桥稳定性的非线性研究
Nonlinear Analysis of Stability of Half-Through Concrete Filled Steel Tubular Arch Bridge
【摘要】 在钢管混凝土拱桥的设计中,稳定问题至关重要,文中对稳定性计算中的几何非线性行为进行探讨。根据具体的桥梁实例,建立了两种空间有限元计算模型,对每一种模型分别进行第一类和第二类稳定问题计算。计算结果表明,结构的几何非线性对该桥的稳定影响很小
【Abstract】 In the design of concrete filled steel tubular arch bridge ,stability analysis is crucial.The geometric nonlinearity of structure which can affect th e stability are considered.Two calculation models are made according to a real bridge,the linear and nonlinear properties are taken into account during the ca lculation.The result suggests that the geometric nonlinearity of structure has little influence on the stability of the bridge.
【关键词】 钢管混凝土拱桥;
稳定;
非线性;
【Key words】 concrete filled steel tubular arch bridge; stabil ity; non-linearity;
【Key words】 concrete filled steel tubular arch bridge; stabil ity; non-linearity;
- 【文献出处】 交通科技 ,Sci, & Tech,information of Water Transportation , 编辑部邮箱 ,2005年02期
- 【分类号】U441
- 【被引频次】16
- 【下载频次】207