G109线跨高速公路桥的设计与技术研究

Design and Technical Research of Expressway Overpass in G109 Line

以G109线改扩建工程中跨高速公路桥为工程实例,对新型管翼缘组合梁桥的受力及关键技术进行分析.归纳出新型管翼缘组合梁桥若干设计特点,开拓此类桥梁的设计思路,为管翼缘组合桥梁设计提供了研究参考.

Taking the expressway overpass in G109 Line Reconstruction and Extension Project as an example,the stress and key technologies of the new tube-flange composite beam bridge are analyzed.Some design characteristics of the new tube-flange composite beam bridge are summarized.The design ideas for this kind of bridge are developed.The study reference is provided for the design of the tube-flange composite bridges.