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YAN Lei, LU: Ying-zhao, HE Shuan-hai, JIANG Jing. Practical evaluation method of component reliability for existing concrete bridge[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 13-19. doi: 10.19818/j.cnki.1671-1637.2009.05.003
Citation: YAN Lei, LU: Ying-zhao, HE Shuan-hai, JIANG Jing. Practical evaluation method of component reliability for existing concrete bridge[J]. Journal of Traffic and Transportation Engineering, 2009, 9(5): 13-19. doi: 10.19818/j.cnki.1671-1637.2009.05.003
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Practical evaluation method of component reliability for existing concrete bridge

doi: 10.19818/j.cnki.1671-1637.2009.05.003
  • 1.

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

  • 2.

    Highway Administration of Hangzhou, Hangzhou 310004, Zhejiang, China

  • 3.

    Xi'an Highway Survey and Design Institute, Xi'an 710065, Shaanxi, China

More Information
  • Author Bio:

    YAN Lei(1979-), male, lecturer, doctoral student, +86-29-82334870, YL96955@126.com

    HE Shuan-hai(1962-), male, professor, PhD, +86-29-82334871, keji_1@chd.edu.cn

  • Received Date: 2009-05-11
  • Publish Date: 2009-10-25
    Abstract
  • In order to realize the rapid assessment of the reliability of existing concrete bridge, a loading effect probability model considering evaluation base period and the modification factor of live load was established.A classification evaluation criterion of component's bearing capacity was put forward, which regarded resistance coefficients and limit coefficients.Four main factors were taken into account, which are the bearing force situation, the determination degree of resistance, the ratio of vehicle load to dead load and the assessment reference period.A practical evaluation method of reliability for existing concrete bridge's component was put forward through a lot of reliability calculation.For an existing concrete bridge, the reliability index is 4.21 and the safety grade is secondary according to the computation method from unified standard for reliability design of highway engineering structures(GB/T 50283—1999).The checking index is 0.994 and the assessment result is also secondary.Computation result indicates that the method is convenient and practical.

     

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