Structural Analysis of Cable-Stayed Arch Bridge

The paper has conducted the fundamental research on the cable-arch system.Taking a cable-stayed arch bridge with main span of 400 m as an example,using the plane link analysis system,the internal force and deflection of the cable-stayed arch bridge under dead load has been contrasted with the result of the ordinary arch bridge.The internal force envelope diagram of the cable-stayed arch bridge under bearing capacity limit load combination has been contrasted the result with the ordinary arched bridge.The result indicated that reasonably designing of the cable in the cable-stayed arch bridge can reduce the axile force of the entire arch and obviously reduce the hogging moment and the shearing force the skew back.A conclusion is given that the cable-stayed arch bridge is novel and artistic.It is more important that the arch axile force of the cable-stayed arch bridge may adjust,thus,the bridge may develop to the great span direction.