Studies on the Dynamic Performance of the Continuous Rigid Frame Bridge Impacted by the Damage at Some Key Positions of the Side Piers

Abstract:

Continuous rigid frame bridge is widely used in bridge construction because of its superior characteristics, with its piers increasing. Shown in previous studies, the key positions of the side pier or lower pier at the top and the bottom of the pier yield firstly and then get into the plastic stage in the action of earthquake. So in this condition, dynamic analysis of the continuous rigid frame bridge impacted by the consolidation damage that may occur at the pier top and the bottom is studied in the paper. In the process, the consolidation damage degree is introduced in order to characterize the damage qualitatively. And then Midas/Civil 2010 is adopted to analyze the structure by modeling. Finally, some conclusions are obtained, including that the consolidation damage has a significant impact on the dynamic features, effect on the structure when the damage respectively happens at the two key sections is extremely close, and almost all value of the dynamic feature changes is located in the condition when the damage degree is less than 10%. The job above all in this paper may provide a valuable reference for the seismic analysis and the technique of damage identification and location in continuous rigid frame bridge.

• Periodical: Advanced Materials Research (Volume 1020)
• Pages: 137-142
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1020.137
• Online since: October 2014
• Authors: Bo Qiang Yao, Jun Dong*, Zhi Gang Qi
• Keywords: Connection Damage, Consolidation Damage, Continuous Rigid Frame Bridge, Damage Identification, Natural Vibration Properties

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