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Multiscale Finite Element Model and Mechanical Analysis of a Cable-Stayed Bridge with Large Cantilever Spine Girder

A new bridge named Kongchenghe bridge that is going to be constructed in Anhui province uses the spine girder with large cantilever and adopts hybrid cable-stayed bridge structure. The design and property of a hybrid cable-stayed bridge is introduced and the characteristic of spine girder with large cantilever is discussed. The design concepts of the bridge is introduced and a multiscale finite element model is built in this work, through which the specific details of the bridge is shown, and the model is computed with combined load conditions. The results verify the efficiency of the finite element model and reveal important mechanical characteristics of the bridge.