A Study on the Restrainer for Isolated Bridge

Abstract:

As a result of adopting isolated bearings, it is inevitable to increase the lateral displacement of the superstructure and the chance of girder falling. However, the shear keys that just satisfies the structural design is far from meeting the requirements of displacement of isolated bridge restrictions. On account of this, given the nonlinear characteristics of bearings and the restrainer, the authors make the study on the "damping rubber with coupling collar" restrainer, and then establish isolation system model of continuous beam bridge with finite element software named Midas. Meanwhile, the effect of the restrainer on the dynamic response of isolated bridges is presented by time-history analysis, which reveals the great value in the application of limiting displacement of isolated bridge.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 5208-5213
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.5208
• Online since: May 2011
• Authors: Yong Feng Du, Xiao Yu Sun
• Keywords: Dynamic Characteristic, Isolated Bridge, Restrainer, Time History Analysis

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