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Seismic Performance of Pier Columns Reinforced with High-Performance Materials Based on Finite Elements
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(1.Shanghai Municipal Planning & Design Institute Co., Ltd., Shanghai 200031, China; 2.Shanghai Chentou Urban Development Institute Co.,Ltd., Shanghai 200031,China; 3.Shanghai Engineering Research Center of Urban Road Ecological Technology, Shanghai 201418, China.)

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    Abstract:

    This paper focuses on the challenge of insufficient transverse seismic capacity in urban elevated twin-column pier bridges. By conducting finite element simulations, it studies how externally reinforcing pier columns with Fiber-Reinforced Polymer (FRP), Engineered Cementitious Composite (ECC), and Ultra-High Performance Concrete (UHPC) affects their bearing capacity, stiffness, ductility, and energy dissipation. The results indicate that UHPC significantly enhances the bearing capacity of concrete columns, while both ECC and UHPC effectively improve ductility and energy dissipation. In contrast, FRP reinforcement shows no significant effect on bearing capacity, stiffness, or ultimate deformation. These findings provide reference data for strengthening similar projects.

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Xinzhi Duan Seismic Performance of Pier Columns Reinforced with High-Performance Materials Based on Finite Elements. Prestress Technology 2025,3(02):16-29. 10.59238/j. pt.2025.02.002

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History
  • Received:April 22,2025
  • Revised:May 20,2025
  • Adopted:
  • Online: June 28,2025
  • Published: June 28,2025