Finite Element Analysis and Test Study on YanJihe Arch Bridge

The whole finite element model of half-through steel-tube concrete stiff skeleton arch bridge is established by utilizing the general finite element software ANSYS.Then the static analysis under ten different working conditions as well as modal analysis are done.In order to validate its rationality,static loading test of the bridge is done,24 strain key points and 4 deflection key pointes are chosen to test.Besides,the bridge basic frequency is obtained from the move-loading test.It shows that finite element analysis agrees well with the test results,and the model can reflect the actual state of bridge.Also the test results show that the strength and the rigidity of the bridge satisfy the design and code requirements.