ZHANG Zhi-cheng, YE Gui-ru, WANG Yun-feng. OPTIMIZATION OF STAYED-BUCKLE CABLE FORCES DURING ADJUSTMENT OFTHE LINE-SHAPE ON LONG SPANARCH BRIDGE[J]. Engineering Mechanics, 2004, 21(6): 187-192.
Citation: ZHANG Zhi-cheng, YE Gui-ru, WANG Yun-feng. OPTIMIZATION OF STAYED-BUCKLE CABLE FORCES DURING ADJUSTMENT OFTHE LINE-SHAPE ON LONG SPANARCH BRIDGE[J]. Engineering Mechanics, 2004, 21(6): 187-192.

OPTIMIZATION OF STAYED-BUCKLE CABLE FORCES DURING ADJUSTMENT OFTHE LINE-SHAPE ON LONG SPANARCH BRIDGE

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  • Received Date: March 23, 2003
  • Revised Date: May 28, 2003
  • An optimization method is introduced to the adjustment of the arch line-shape for long spans arch bridge. The method of FEM analysis combined with optimization is applied to the inverse calculation of the cable forces. Designated as design parameters, the cable forces are acquired by minimizing the square sum of the altitude deviation of all altitude-controlled nodes. The first order optimization method is employed. Based on the FEM program-ANSYS, the method is implemented to adjust the line-shape of a CFST- arch bridge before folding. The result of optimization of the cable forces shows that this method is successful and effective.
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