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This study aims to analyze the behavior of precast concrete slabs under both short-term and long-term loading conditions. The investigation focused on two commonly used precast slabs in building construction: the Vector (half-slab) and Teriva (beam-and-hollow tile floor). The experimental program involves full-scale slabs to non-uniform loading to investigate crack morphology, lateral interaction between precast elements, and displacement characteristics. Computational analyses were also conducted using various models, including beam, grid, and slab models. The calculated displacements in the beam model significantly overestimate the observed displacement values. These differences indicate the complexity of accurately predicting the behavior of precast slabs. The study highlights the significance of considering two-way action in the expert assessment of precast slabs.

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Behavior of Half-Slab and Beam-and-Block Floor Supported on Four Edges: Short- and Long-Term Studies

  • 会议论文

  • 发表日期：

    2025年

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  • Jakub Zając,
  • Łukasz Drobiec,
  • Radosław Jasiński,
  • Krzysztof Grzyb

摘要

This study aims to analyze the behavior of precast concrete slabs under both short-term and long-term loading conditions. The investigation focused on two commonly used precast slabs in building construction: the Vector (half-slab) and Teriva (beam-and-hollow tile floor). The experimental program involves full-scale slabs to non-uniform loading to investigate crack morphology, lateral interaction between precast elements, and displacement characteristics. Computational analyses were also conducted using various models, including beam, grid, and slab models. The calculated displacements in the beam model significantly overestimate the observed displacement values. These differences indicate the complexity of accurately predicting the behavior of precast slabs. The study highlights the significance of considering two-way action in the expert assessment of precast slabs.