摘要
薄壁空心高墩适用于多种复杂地势,且具有相当的柔性,可较好应对上部结构变形.与此同时,其空心结构可极大减少工程用料和自身重量,在高墩桥梁中应用广泛.运用ANSYS软件建立墩身空间梁单元模型,同时考虑温度效应影响,分析薄壁空心高墩几何非线性特性的考虑与否所导致墩顶位移及墩底弯矩变化情况.研究结果为薄壁空心高墩在设计过程中的结构安全控制奠定了一定的基础,可供同型桥梁参考借鉴.
Thin-wall hollow high pier is suitable for a variety of complex terrain and has the considerable flexibility,which can better deal with the deformation of superstructure.At the same time,its hollow structure can greatly reduce the engineering materials and its own weight,and is widely used in the high-pier bridges.The spatial beam element model of pier body is established by using ANSYS software.Considering the influence of temperature effect,the geometric nonlinear characteristics of thin-wall hollow high pier are analyzed whether or not to result in the displacement at the top of pier and the change of bending moment at the bottom of pier.The study result lays a certain foundation for the structural safety control of thin-wall hollow high pier in the design process,which can be referred for the similar bridges.
出处
《城市道桥与防洪》
2022年第8期65-67,M0009,M0010,共5页
Urban Roads Bridges & Flood Control
关键词
薄壁空心高墩
太阳辐射
设计验算
几何非线性
thin-wall hollow high pier
solar radiation
design checking calculation
geometric nonlinearity
