journal6 ›› 2013, Vol. 34 ›› Issue (2): 87-90.DOI: 10.3969/j.issn.1007-2985.2013.02.019

• Machinery and Engineering • Previous Articles     Next Articles

Simply-Supported Beam Bridge’s Dynamic Response to the Different Vehicle Speed and Loaded


  1. (College of Civil Engineering and Mechanics,Xiangtan University,Xiangtan 411105,Hunan China)
  • Online:2013-03-25 Published:2013-04-23

Abstract: Using modal decomposition method for solving vehicle-bridge coupling equation to analyze the dynamic response of the simply-supported beam bridge to different vehicle load and speed.The half car model was used  as vehicle,and  Euler-Bernoulli beam was used as the simply-supported beam bridge.Using the ANSYS software,the simply-supported beam bridge span deflection curve was obtained.The results show that vehicle load increase  made the bridge span deflection increase;the beam’s span deflections were 0.028 m and 0.049 m respectively  in the  standard vehicle load and 100% vehicle overload.As the vehicle speed increased,the simply-supported beam bridge span deflection reached at its peak value at the vehicle speed of 60 km/h and vehicle-bridge resonance was resulted in.

Key words: dynamic response, vehicle-bridge coupling equation, half car model, load and speed

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