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YAN Lei, ZHANG Xue-lin, HE Shuan-hai. Double iteration solving method of resistance partial factor[J]. Journal of Traffic and Transportation Engineering, 2011, 11(3): 1-5. doi: 10.19818/j.cnki.1671-1637.2011.03.001
Citation: YAN Lei, ZHANG Xue-lin, HE Shuan-hai. Double iteration solving method of resistance partial factor[J]. Journal of Traffic and Transportation Engineering, 2011, 11(3): 1-5. doi: 10.19818/j.cnki.1671-1637.2011.03.001
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Double iteration solving method of resistance partial factor

doi: 10.19818/j.cnki.1671-1637.2011.03.001
  • 1.

    School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China

  • 2.

    Transportation Bureau of Zhucheng, Zhucheng 262200, Shandong, China

Funds:

Scientific Research of National West Communications Construction 2007 318 822 21

Fundamental Research Fund for Central University CHD2009JC017

More Information
  • Author Bio:

    YAN Lei(1979-), Male, Yuncheng, Shanxi, Lecturer of Chang'an Uinversity, PhD, Research on Reliability Theory and Assessment Technology of Bridge Engineering, +86-29-82334870, YL96955@126.com

  • Received Date: 2010-12-22
  • Publish Date: 2011-06-25
    Abstract
  • The characteristics of nested loop for reflection transformation method and interpolation method were analyzed, a double iteration solving method of resistance partial factor was presented, and its program was designed by using VB. The resistance partial factors of bridge components were calculated when the effect ratios of living load to dead load were 0.10, 0.25, 0.50, 1.00, 1.50, 2.50. The resistance was modified by multiplying load effect combination value by resistance partial factor, and the corresponding reliability index was checked. Computation result indicates that component reliability index computed by using the method is larger than its target index. Their relative deviation is between 0.62%-0.92% under general operation state for vehicle, and it is between 0.62%-0.74% under dense operation state for vehicle. The result shows that the method is reliable and emphasis on safety.

     

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