Numerical Simulation of Star-Diamond Type Self-Anchored Suspension Bridge Considering Stacked Girder Connections

To compare the various effects of the two connecting methods of the stacked girders of the self-anchored suspension bridge on the bridge's force performance and force transmission mechanism, and to find out the most suitable connection method of the stacked girders of the self-anchored suspension bridge, this paper establishes a bridge model based on the Lecheng Bridge of Boao Lecheng Pilot Zone, Qionghai City, Hainan Province, using Midas software, and conducts numerical simulation and finite element analysis on the actual force conditions inside the bridge tower and the main tower, main girders, main cables and suspension rods of the bridge under the two connection methods to obtain a reasonable connection method for the stacked girders. Numerical simulation and finite element analysis are conducted on the internal tower and the real force conditions of the main tower, main girder, main cable and boom under the two different connection methods of stacked girders, in order to obtain a reasonable connection method of stacked girders. The research results show that: the self-anchored suspension bridge stacked girder connection for tower and beam separation, the bridge parts of the force has been reduced, the main cable axial force has been improved, the force tends to be stable, the stability of the whole bridge has been ensured, The research findings can be used to guide the project's actual construction.