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July 15, 2026Applied SciencesOpen Access

Seismic Performance and Reinforcement Ratio Analysis of Thin-Walled Piers of Continuous Girder Bridges in High -Seismic-Intensity Regions

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Authors

XXX X XuLJLi JYWYi-Xiang Wang

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Overview

Randomized trial investigates seismic performance in long-span, thin-walled piers, suggesting design optimizations.

Key Points

  • This study aims to examine the seismic performance and optimal reinforcement ratios of thin-walled bridge piers in high-seismic-intensity areas.
  • Established a beam-element finite element model of a continuous girder bridge.
  • Analyzed three pier heights: 20 m, 50 m, and 80 m under ground accelerations of 0.1 g to 0.3 g.
  • Conducted response spectrum analyses to evaluate seismic behavior.
  • Tall piers show increased flexibility with fundamental periods from 1.02 s to 3.38 s as height increases.
  • Short piers’ design is driven by internal forces, while tall piers prioritize top displacements under seismic loads.
  • Longitudinal reinforcement for tall piers may adhere to minimum requirements, but transverse reinforcement significantly increases with seismic demands.

Cite This Study

Xu et al. (2026) studied this question.

synapsesocial.com/papers/6a57229088b21df87547f962https://doi.org/10.3390/app16146994
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