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This paper presents a nonlinear finite element simulation of the top slab-track layer railway designed for high-speed train systems. The study investigates the top slab-track layer previously designed using a conventional reinforced concrete (RC) structure with the new material design based on fiber-reinforced concrete (FRC). This study is the pilot project on using advanced material technology for the slab-track structure. The two fibers that would be used to construct the FRC are the hooked-end steel fiber DRAMIX 3D 65/35 and polypropylene fiber. The volumetric content of both fibers is 2.0%. The basic concrete strength is 50 MPa. In this paper, only one panel of slab-track is being investigated. The panel has a width of 600 mm, a width of 2500 mm, and a thickness of 200 mm. The panel is tested as a simply supported beam with an inverted position to mimic the restraint imposed by the wheel train. The simulation uses an in-house 3DNLFEA package with a multi-surface plasticity model suitable for modeling plain and fiber-reinforced concrete. The simulation found that using fibers can improve the peak load-carrying capacity and enhance the post-peak softening behavior of the slab-track structures.

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Numerical Modeling of a Single Panel Slab-Track with Steel Fiber and Polypropylene Fiber Reinforced Concrete

  • 会议论文

  • 发表日期：

    2025年

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  • Ardyan Ezardika,
  • Bambang Piscesa,
  • Danny Triputra Setiamanah,
  • Priyo Suprobo,
  • Dwi Agus Purnomo,
  • Djoko Prijo Utomo,
  • Wimpie Agoeng Noegroho Aspar

摘要

This paper presents a nonlinear finite element simulation of the top slab-track layer railway designed for high-speed train systems. The study investigates the top slab-track layer previously designed using a conventional reinforced concrete (RC) structure with the new material design based on fiber-reinforced concrete (FRC). This study is the pilot project on using advanced material technology for the slab-track structure. The two fibers that would be used to construct the FRC are the hooked-end steel fiber DRAMIX 3D 65/35 and polypropylene fiber. The volumetric content of both fibers is 2.0%. The basic concrete strength is 50 MPa. In this paper, only one panel of slab-track is being investigated. The panel has a width of 600 mm, a width of 2500 mm, and a thickness of 200 mm. The panel is tested as a simply supported beam with an inverted position to mimic the restraint imposed by the wheel train. The simulation uses an in-house 3DNLFEA package with a multi-surface plasticity model suitable for modeling plain and fiber-reinforced concrete. The simulation found that using fibers can improve the peak load-carrying capacity and enhance the post-peak softening behavior of the slab-track structures.