WANG Jun-li, HE Shuan-hai. Nonlinear stability analysis of long-span curve bridge with high piers during cantilever construction[J]. Journal of Traffic and Transportation Engineering, 2006, 6(2): 30-34.
Citation: WANG Jun-li, HE Shuan-hai. Nonlinear stability analysis of long-span curve bridge with high piers during cantilever construction[J]. Journal of Traffic and Transportation Engineering, 2006, 6(2): 30-34.

Nonlinear stability analysis of long-span curve bridge with high piers during cantilever construction

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  • Author Bio:

    Wang Jun-li(1964-), male, associate professor, 86-29-82334421, junli_wjl@sohu.com

  • Received Date: 2005-07-01
  • Publish Date: 2006-06-25
  • In order to improve the structure stability of curve rigid frame bridge with high pier and long-span during cantilever construction, bridge structure geometry nonlinearity and material nonlinearity were considered, the stabilities and max-displacements of the bridge were analyzed by finite element method with different central angles of curve, different slenderness ratios of pier and different tie-girder numbers in each situation, the relations of bridge critical stability coefficient and max-displacement with the central angle of curve, slenderness ratio of pier and tie-girder number were studied. The result shows that the nonlinear stability coefficient of bridge is 35% of eigenvalue flexure load, the central angle of curve dominates the critical stability coefficient and the max-displacement, it is not favorable for bridge stability that the number of tie-girder is more than two.

     

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