Comparison and Selection of Construction Connection Schemes Between Segmental Steel Truss Beams of Large Span Suspension Bridges
In the construction process of large span suspension bridge,the connection mode between the segmental steel girder plays a crucial role in the safety and progress of the bridge structure.Adopting a reasonable connection mode can ensure the realization of the design into the bridge state,ensure the safety and stable construction of the bridge structure during the construction period,and opti-mize the process and shorten the construction period.Based on the Jinfeng Wujiang Bridge in Guizhou Province,five different construc-tion schemes are made according to the method of section by section articulation,section by section rigid joint and steel hinge mixture.According to the actual requirements of the project site,scheme II is selected to guide the construction.The actual collected maximum stress is-61.3 MPa,the maximum cable force is1743.6 kN,and the overall linear shape of the stiffened beam changes gently,which meets the structural safety requirements in the construction process.
segmental steel truss beamsconstruction connectionstress of steel truss girdersecurity control
万方数据
维普
