Reliability analysis of the upper anchorage of a cable-stayed bridge using a probabilistic structural model

Didier Samayoa; Francisco Carrión; José Alfredo López; Alexander Balankin

doi:10.1117/12.660533

20 March 2006 Reliability analysis of the upper anchorage of a cable-stayed bridge using a probabilistic structural model

Didier Samayoa, Francisco Carrión, José Alfredo López, Alexander Balankin

Author Affiliations +

Proceedings Volume 6176, Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure V; 61760W (2006) https://doi.org/10.1117/12.660533
Event: Nondestructive Evaluation for Health Monitoring and Diagnostics, 2006, San Diego, CA, United States

Abstract

This work describes the experimental and theoretical approach used for the development of a structural reliability model for the upper anchorage of a cable-stayed bridge. Experimental and field analysis are used to establish the statistical models for uncertainty in material constitutive laws, fracture toughness, external loads (traffic and wind), and material defects (inclusions and pores). A standard reliability method is used for the evaluation of probabilistic characteristics of parameters and for the failure probabilities. Finite element analysis is used within two levels; the first level considers the model of the whole bridge to calculate the loads on the anchorages under different external load conditions. The second level considers the detailed model for the anchorage to calculate stresses on critical points. A particular semi-empirical model is proposed to analyze fatigue and to predict structural life. The reliability model is evaluated through the simulation of different scenarios of load conditions.

Citation Download Citation

Didier Samayoa, Francisco Carrión, José Alfredo López, and Alexander Balankin "Reliability analysis of the upper anchorage of a cable-stayed bridge using a probabilistic structural model", Proc. SPIE 6176, Nondestructive Evaluation and Health Monitoring of Aerospace Materials, Composites, and Civil Infrastructure V, 61760W (20 March 2006); https://doi.org/10.1117/12.660533

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