Open Access

ABSTRACT

Stay cable vehicle live load effects analysis based on structural health monitoring data

C.M. Lan¹, H. Li¹

1 Harbin Institute of Technology, Harbin, China

The International Conference on Computational & Experimental Engineering and Sciences 2009, 12(3), 75-82. https://doi.org/10.3970/icces.2009.012.075

Abstract

Stay cables are some of the most critical structural components of a bridge. However, stay cables readily suffer from corrosion damage and stress corrosion damage. Thus, health monitoring of stay cables is important for ensuring the integrity and safety of a bridge. Glass Fibre Reinforced Polymer Optical Fibre Bragg Grating (GFRP-OFBG) cable, a kind of fibre Bragg grating optical sensing technology-based smart stay cables, is proposed in this study. The fabrication procedure of the smart stay cable was developed and the self-sensing property of the smart stay cable was calibrated. The application of the smart stay cables on the Tianjin Yonghe Bridge was demonstrated and the vehicle live load effects smart stay cables were evaluated based on field monitoring data. Finally, the probability distribution and extreme value distribution of live load effects of the stay cables were established.

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Keywords

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