Static And Dynamic Analysis On Suspended Stiffening Steel Truss Of Dongjiangnan Bridge Of Guangzhou-Dongguan-Shenzhen Inter-City Express

This thesis focuses on suspended stiffening steel truss bridge, containing the performance of static and dynamic. Firstly, this thesis briefly introduces the history and structural features of suspended stiffening steel truss bridge at home. Then it tells the engineering background and the specific structure design proposal of the Dongjiangnan bridge. After that, the structure behavior and the deformation during operation stage which is under the load combination of dead load, live load, braking force etc. are calculated by Dr. Bridge V3.2. In the dynamic regard, the bridge’s the natural frequency of vibration and vibration modes are calculated with ANSYS FEM model. And the seismic response analysis is made with response spectrum method and time history analysis method, and the structural earthquake resistant behaviors are verified. Based on the seismic checking calculation, some reasonable advises are proposed for anti-seismic design of structures. Eventually, it can provide reliable advice for the structure design and construction based on the bridge’s static and dynamic analysis.Therefore, the performance of static and dynamic and analysis method of suspended stiffening steel truss bridge are understood roundly.