以主跨为256m的某特大桥为工程背景,对单塔单跨钢桁悬索桥加劲梁与桥面板的施工顺序进行了研究。结果表明:不同加劲梁与桥面板施工顺序对加劲梁杆件、吊杆应力的影响较大,通过仿真分析,得出该桥的加劲梁从梁端开始吊装直至B6合龙节段,桥面板从加劲梁跨中对称施工至两端的施工顺序时,钢桁加劲梁杆件及吊杆受力最为合理,并通过实测监控数据,验证架设施工方案的合理性。 Taking a special bridge with main span of 256m as engineering background, the construction sequence of stiffening girder and bridge deck of single tower single-span steel-truss suspension bridge was studied. The results show that the construction sequence of different stiffening girder and deck slab has a great influence on the stress of the stiffening girder member and boom. The simulation results show that the stiffening girder of the girder is hoisted from the beam end to the B6 closing segment. When the construction sequence of symmetrical construction to both ends of the stiffening girder is symmetrical, it is most reasonable to stress the bar girder and boom of the steel truss stiffening girder, and verify the rationality of the erection plan through the monitoring data.