The Reliability Sensitivity Analysis of Composite Beam Cable-Stayed Bridge during Construction Stage

Abstract:

A 10DOF composite beam element was developed, which had taken the interface slip effect and geometric nonlinearity into consideration. The method to obtain structural response gradients of composite beam was analyzed, meanwhile the reliability index was achieved by using the FORM method and on this basis, and the sensitivity of random variable parameters could be finished. At last the control of target elevation was took as state performance function, the sensitivity analysis of random variable parameters which might have an effect on the elevation control reliability was effectively completed, and some useful conclusions which were be beneficial to construction control of composite beam cable-stayed bridge obtained.

• Periodical: Applied Mechanics and Materials (Volumes 438-439)
• Pages: 901-907
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.438-439.901
• Online since: October 2013
• Authors: Bu Yu Jia, Xiao Lin Yu, Quan Sheng Yan, Zhou Chen
• Keywords: Cable-Stayed Bridge, Composite Beam, Construction Stage, Elevation, Interface Slip, Sensitivity

References

[1] Y. Liu, The Researching Time-dependent Relibaility of Conerete Cbale-stayed Bridges during Construction, Hunan, (2006).

[2] J. Zhang, F. Xu, Reliability Analysis of the global stability in cantilever construction of continuous bridges, Journal of Changsha Communications University, 1 (2002) 26-29.

[3] C. Su, X. Fan, Parameter sensitivity and reliability analysis for construction control of cable-stayed bridges, China Civil Engineering Journal, 10 (2005) 85-91.

[4] Y. Xu, C. Su, S. Zhao, Reliability analysis of elevation and cable force control during construction process for girder segment of cable-stayed bridges, J. of HUST. (Urban Science Edition), 2 (2010) 34-39.

[5] A. Dall'Asta, A. Zona, Slip locking in finite elements for composite beams with deformable shear connection, Finite Elements in Analysis and Design, 40 (2004) 1907-(1930).

DOI: 10.1016/j.finel.2004.01.007

[6] R. Zhang, Nonlinear Finite Element Analysis, Chongqing University Press, Chongqing, (1990).

[7] M. Barbato, Finite element response sensitivity probabilistic response and reliability analyses of structural systems with applications to earthquake engineering, University of California, San Diego, (2007).

DOI: 10.1201/9780203881637-11

[8] Y. Zhang, A. Der Kiureghian, First-excursion probability of uncertain structures, Probabilistic Engineering Mechanics, 9 (1994) 135-143.

DOI: 10.1016/0266-8920(94)90037-x