温福铁路昆阳特大桥梁拱结合部应力分析  

Stress Analysis of the Beam-arch Joint Part of Kunyang Bridge on Wenzhou-Fuzhou Railway

作　　者：刘沐宇[1] 陈强[1] 

机构地区：[1]武汉理工大学道路桥梁与结构工程湖北省重点实验室,湖北武汉430070

出　　处：《华中科技大学学报（城市科学版）》2009年第1期35-38,共4页Journal of Huazhong University of Science and Technology

摘　　要：结合温福铁路上一座跨径为(64+136+64)m连续梁拱组合桥的设计及施工,运用通用有限元软件ANSYS建立了该桥梁拱结合部的空间有限元模型,模拟了该部位在5种荷载工况下的应力状态,并就成桥后恒载作用下该部位理论计算应力与实测应力进行了对比分析,结果表明:计算应力与实测应力基本吻合,梁拱结合部内应力满足规范要求,且分布较均匀,结构总体受力合理。On the base of the design and construction of a continuous beam-arch composite bridge on Wenzhou-Fuzhou Railway, the spacial finite element model of the bridge with span arrangement （64 ＋ 136 ＋ 64 ） m is set up by using ANSYS, the local stress of the joint part in five load cases ware simulated. The calculated stress and the measured stress of the joint part under the action of dead loads in finished state are compared and analyzed. The results indicate that the calculated stress almost accords with the measured stress in the field, the internal stress of the beam-arch joint part meets the standard requirements and is well distribu- ted, and the structure loading is reasonable.

关 键 词：梁拱结合部 应力分析 荷载 拱座 

分 类 号：U443.37[建筑科学—桥梁与隧道工程]