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Aerostatic Reliability Analysis of Long-Span Bridges |
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| Authors: | Cheng Su Xiufeng Luo Tianquan Yun |
| Affiliation: | 1Professor, School of Civil Engineering and Transportation, State Key Laboratory of Subtropical Building Science, South China Univ. of Technology, Guangzhou 510640, People’s Republic of China (corresponding author). E-mail: cvchsu@scut.edu.cn 2Graduate Student, School of Civil Engineering and Transportation, South China Univ. of Technology, Guangzhou 510640, People’s Republic of China. E-mail: xfluo_1983@163.com 3Professor, School of Civil Engineering and Transportation, South China Univ. of Technology, Guangzhou 510640, People’s Republic of China. E-mail: cttqyun@scut.edu.cn |
| Abstract: | The response surface Monte Carlo method (RSMCM) is proposed for reliability analysis of aerostatic response and aerostatic stability for different types of long-span bridges, in which the nonlinear effects due to geometric nonlinearity and deformation-dependent aerostatic loads are taken into consideration. The geometric parameters, the material parameters, and the aerostatic coefficients of the bridge girder are regarded as random variables in the proposed method. RSMCM has higher accuracy in comparison with the traditional response surface method and requires much less computational cost than the conventional Monte Carlo method. The proposed method is applied to reliability analysis of aerostatic response and aerostatic stability of the Hong Kong Ting Kau Bridge, and reasonable results illustrating effectiveness of the method are obtained. |
| Keywords: | Bridges, long span Static loads Wind loads Nonlinear response Structural stability Structural reliability Monte Carlo method |