18 May 1999 Monitoring and modeling of a prestressed segmental box bridge
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Abstract
A large number of relatively long bridges have been constructed using prestressed segmental box girder technology and are currently in service around the world, This article purports to report the investigation of one such structure. The structure has been operational since the late 1970's and has innumerable visible shear cracks originating from the shear keys of the individual segments. The present investigation, a non-linear finite element model of the structure has been developed and analyzed under dead load, live load and thermal gradients. Results from a preliminary crack propagation investigation have also been reported. To validate and upgrade the finite element model a long term monitoring system has been installed on the bridge for monitoring temperature changes, crack growth and strain cycling due to traffic and temperature variations.
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Debashis Satpathi, Debashis Satpathi, Zhen L. Chen, Zhen L. Chen, Ming L. Wang, Ming L. Wang, J. G. Kim, J. G. Kim, } "Monitoring and modeling of a prestressed segmental box bridge", Proc. SPIE 3671, Smart Structures and Materials 1999: Smart Systems for Bridges, Structures, and Highways, (18 May 1999); doi: 10.1117/12.348686; https://doi.org/10.1117/12.348686
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