Vehicle Parameters Influence on Railway Double-Track Steel Truss Continuous Bridge Vertical Load-Carrying Natural Frequency

10.6567/IFToMM.14TH.WC.PS19.001

Jian-Ying Ren；Shao-Hua Li；Jing-Bo Guo

Vehicle-bridge system ； Vertical load-carrying natural frequency ； Vehicle parameter ； Double-track steel truss continuous bridge

Proceedings of the 14th IFToMM World Congress

14th-5（2015 / 11 / 06）

534 - 538

英文

The railway double-track continuous bridge vertical load-carrying frequency is calculated with the vehicle-bridge system model. When two lines with 20 same high-speed passenger vehicles are traveling on the 3×64 m through stud welding railway steel truss bridge from both ends, the vehicle parameters are analyzed how to influence the bridge vertical load-carrying frequency. The unsprung mass of each wheel-set of the vehicle, the suspension spring stiffness, the vehicle length and the mass of the vehicle all impact the bridge vertical load-carrying frequency. But the train speed do not impact it. Consequently, the bridge vertical load-carrying frequency is the vehicle-bridge system natural frequency, it is only depend on its natural parameters.