Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (11): 1648-1653.DOI: 10.12068/j.issn.1005-3026.2019.11.023

• Resources & Civil Engineering • Previous Articles     Next Articles

Structural Reliability Analysis Method Considering Load Sequence

KANG Yu-mei, LIU Zi-ao, WU Peng-fei   

  1. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2018-08-23 Revised:2018-08-23 Online:2019-11-15 Published:2019-11-05
  • Contact: KANG Yu-mei
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Abstract: In view of the contradiction which load effects are assumed to be both independent and completely related in load-effect combination method recommended by JCSS , and the ineffectiveness of time-interval analysis method for non-stationary load-effect process in engineering, structural reliability analysis method considering load sequence is performed. Firstly, the structural reliability analysis method under non-stationary load effect process is proposed. Secondly, the structural reliability calculation model under multi-period load considering load sequence is improved. Finally, the influence of structural damage on reliability is analyzed by cross-threshold theory, and the formula for calculating structural reliability considering non-stationary load process, loading sequence and structural damage is derived. The results showed that the method is more applicable and the calculation results are more realistic and reliable.

Key words: structural reliability, time period analysis method, non-stationary load effect, load sequence, load combination

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