The Fuzzy Reliability Analysis for the Super Wide Box Girder of New Jiujiang Changjiang River Bridge

Abstract:

The crack control of the concrete super wide box girder for New Jiujiang Changjiang River Bridge is effected by various uncertain factors such as loads, concrete strength and the release of hydration heat etc. Because of the fuzziness for the crack control of the super wide box girder, it is difficult to accurately calculate the crack width to meet with the requirement of the limiting crack design for the structure. Based on the maximal permit crack formula issued in “Concrete Design Specifications”, the fuzziness analysis is made to the crack control reliability, the index of fuzzy reliable degrees of the girder maximal permit crack width is calculated by Monte Carlo method, and the sensitivity analysis to uncertain parameters is given to provide reference of the design for River-Crossing Bridge.

• Periodical: Advanced Materials Research (Volume 680)
• Pages: 157-160
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.680.157
• Online since: April 2013
• Authors: Yao Rong, Hong Yuan Huang, Xiao Qin Ouyang
• Keywords: Crack Control, Fuzzy Reliability, River-Crossing Bridges, Super Wide Box Girder

References

[1] Zhuang W, Song YF, Xu CB, Reliability Analysis of the Maximum Crack Width Formula in built-up Beam component. Building Technology Development, Vol. 33 (1) (2006)4-6.

[2] Wu HQ, Huang RC, Calculation of Reliability Index of Concrete Structure based on the Maximum Crack Width, Guangxi Engineering Institute journal, Vol. 13 (4) (2002)9-13.

[3] Zhou JM, Hu KZ Fuzzy Random Analysis of Crack Control Reliability of Reinforced Concrete Structure. Shanghai Railroad Institute journal, Vol. 11 (4) (1990)55-66.

[4] Tang XR, Fuzzy Probability Analysis of Crack Control Reliability of Reinforced Concrete Component. Suzhou Urban construction Environmental protection Institute journal, 4 (1998)1-7.

[5] Saito Y, The Monte Carlo simulation of micro structural evolution in metals. Materials Science and Engineering, A223(1997)114-124.

[6] Lee H N, Ryoo H S, Hwan S K, Monte Carlo simulation of microstructure evolution based on grain boundary character distribution. Materials Science and Engineering, A281(2000)176-188.

DOI: 10.1016/s0921-5093(99)00725-x

[7] XU ZJ (1985). Monte Carlo method, Shanghai.

[8] GB 50010-201, Code for Design of Concrete Structures in China.

[9] Yao,R. The Fuzzy Reliability Analysis for the Lining of Crack Control of the Sea Tunnel. 2009, Advances in Intelligent and Soft Computing, Chongqing.