Hybrid reliability model for fatigue reliability analysis of steel bridges

被引：0
作者：
Shan-shan Cao
Jun-qing Lei
机构：
[1] Beijing Jiaotong University,School of Civil Engineering
来源：
Journal of Central South University | 2016年 / 23卷
关键词：
hybrid reliability model (HRM); consistency relationships; linear and bilinear ; curve; fatigue reliability; normal distribution;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A kind of hybrid reliability model is presented to solve the fatigue reliability problems of steel bridges. The cumulative damage model is one kind of the models used in fatigue reliability analysis. The parameter characteristics of the model can be described as probabilistic and interval. The two-stage hybrid reliability model is given with a theoretical foundation and a solving algorithm to solve the hybrid reliability problems. The theoretical foundation is established by the consistency relationships of interval reliability model and probability reliability model with normally distributed variables in theory. The solving process is combined with the definition of interval reliability index and the probabilistic algorithm. With the consideration of the parameter characteristics of the S−N curve, the cumulative damage model with hybrid variables is given based on the standards from different countries. Lastly, a case of steel structure in the Neville Island Bridge is analyzed to verify the applicability of the hybrid reliability model in fatigue reliability analysis based on the AASHTO.
引用
收藏
页码：449 / 460
页数：11
相关论文
共 69 条
[1]  
Ben-Haim Y(1994)A non-probabilistic concept of reliability [J] Structural Safety 14 227-245
[2]  
Elishakoff I(1993)Combination of probabilistic and convex models of uncertainty when limited knowledge is present on acoustic excitation parameters [J] Comput Methods Appl Mech Eng 104 187-209
[3]  
Colombi P(1994)Non-linear buckling of a column with initial imperfections via stochastic and non-stochastic convex models [J] Int J Nonlin Mech 29 71-82
[4]  
Elishakoff I(2001)A non-probabilistic model of structure reliability based on interval analysis [J] Journal of Computational Mechanics 18 56-60
[5]  
Cai G Q(2002)Hybrid probabilistic and non-probabilistic model of structural reliability [J] Chinese Journal of Mechanical Strength 24 524-526, 530
[6]  
Stames J H(2009)Reliability sensitivity analysis with random and interval variables [J] International Journal for Numerical Methods in Engineering 78 1585-1617
[7]  
Guo S-x(2011)Structural reliability analysis based on random distributions with interval parameters [J] Computers and Structures 89 2292-2302
[8]  
Lu Z-z(2009)Probabilistic and non-probabilistic hybrid reliability model of structures [J] Aeronautica et Astronautica Sinica 30 1398-1404
[9]  
Feng Y-sheng(2012)New hybrid convex model and probability reliability method for structures [J] Journal of Mechanical Engineering in Chinese 48 192-198
[10]  
Guo S-x(2002)Efficient estimation of structural reliability for problems with uncertain intervals [J] Computers and Structures 80 1103-1112
1234567