Abstract
This study aims to analyze seismic damage of reinforced outlet piers of arch dams by the nonlinear finite element (FE) sub-model method. First, the dam–foundation system is modeled and analyzed, in which the effects of infinite foundation, contraction joints, and nonlinear concrete are taken into account. The detailed structures of the outlet pier are then simulated with a refined FE model in the sub-model analysis. In this way the damage mechanism of the plain (unreinforced) outlet pier is analyzed, and the effects of two reinforcement measures (i.e., post-tensioned anchor cables and reinforcing bar) on the dynamic damage to the outlet pier are investigated comprehensively. Results show that the plain pier is damaged severely by strong earthquakes while implementation of post-tensioned anchor cables strengthens the pier effectively. In addition, radiation damping strongly alleviates seismic damage to the piers.
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Supported by: National Natural Science Foundation of China under Grant Nos. 51179093 and 91215301, and Specialized Research Fund for the Doctoral Program of Higher Education under Grant No. 20130002110032
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Song, L., Wu, M., Wang, J. et al. Seismic damage analysis of the outlet piers of arch dams using the finite element sub-model method. Earthq. Eng. Eng. Vib. 15, 617–626 (2016). https://doi.org/10.1007/s11803-016-0348-7
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DOI: https://doi.org/10.1007/s11803-016-0348-7