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September 12, 2025Applied SciencesOpen Access

Study on the Mechanical Behavior of a Large-Segment Fully Prefabricated Subway Station During the Construction Process

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Authors

ZTZhongsheng TanYLYuanzhuo LiXFXiaomin Fan

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Overview

Analysis reveals stress concentrations and deflections in a prefabricated subway station model, indicating design improvements.

Key Points

  • Roof vault settlement remains below 3.8 mm during assembly, but backfilling increases roof displacement to 45 mm.
  • Stress concentrations develop in longitudinal mortise–tenon joints, with maximum Von Mises stress reaching 32 MPa.
  • A refined 3D model using ABAQUS software accurately simulates mechanical behavior across a seven-phase construction sequence.
  • Results affirm the structure's stability while suggesting improved member stiffness matching and reinforcement design.

Cite This Study

Tan et al. (2025) studied this question.

synapsesocial.com/papers/68d44b2231b076d99fa540d7https://doi.org/10.3390/app15189941
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