Structural behavior of a cable stayed bridge through the use of a long-term health monitoring system

Yinghong Cao; Ming Wang

doi:10.1117/12.848909

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8 April 2010 Structural behavior of a cable stayed bridge through the use of a long-term health monitoring system

Yinghong Cao, Ming Wang

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Proceedings Volume 7649, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010; 76491M (2010) https://doi.org/10.1117/12.848909
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

The Zhanjiang Bay Bridge is a cable stayed bridge with a main span of 480m. Structural behavior due to thermal effects is presented in this paper in according to data received from a health monitoring system (HMS) since 2006. Data obtained from the analysis includes temperature gradients and time lags in the steel box girder, concrete tower, and stayed cables. By comparing the measured and calculated thermal displacements, it was possible to estimate the unmeasured thermal gradient on the surface of the towers as well as to determine that one of the expansion joints was likely constrained and contributing to the bridges asymmetrical displacement.

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Yinghong Cao and Ming Wang "Structural behavior of a cable stayed bridge through the use of a long-term health monitoring system", Proc. SPIE 7649, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2010, 76491M (8 April 2010); https://doi.org/10.1117/12.848909

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