小半径曲线双层桁架桥设计研究

Design and Study of Small-radius Curved Double-deck Steel Truss Bridge

摘要:

随着国内桥梁大规模建设，双层桁架桥梁逐渐增多，直线钢桁结构的设计与应用较为成熟，曲线桁架结构的研究较少。依托贵阳市人民大道筑城广场大桥，研究了小半径曲线桁架桥的合理构造布置，通过Midas Civil进行结构整体受力分析，采用ANSYS对关键节点受力性能进行研究，为小半径曲线双层桁架梁桥设计及施工提供可靠的理论和技术支持。

Abstract:

With the large-scale construction of bridge in China, the double-deck truss bridge is increasing gradually. The design and application of straight-line steel truss structure has been more mature, and the research of curved truss structure is less. Relying on Zhucheng Square Bridge in Renmin Avenue of Guiyang City, the reasonable structure layout of small-radius curved truss bridge is studied. The overall structural stress is analyzed through MIDAS CIVIL. The stress performance of key joints is studied by ANSYS so as to provide the reliable theoretical and technical support for the design and construction of small-radius curved double-deck truss bridge.