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December 4, 2025Structural ConcreteOpen Access

Nonlinear analysis of flat post‐tensioned concrete slab–edge column connections

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Authors

RRRicardo de Paula RandiUniversidade Estadual de Campinas (UNICAMP)OAOrlando Matheus de L. AlmeidaLTLeandro Mouta TrautweinUniversidade Estadual de Campinas (UNICAMP)

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Overview

Nonlinear analysis demonstrates that prestressing tendon distribution significantly affects punching shear behavior in concrete slabs, highlighting key design implications.

Key Points

  • Punching shear capacity is influenced by the distribution of prestressing tendons, leading to different failure mechanisms.
  • A nonlinear finite element model validated against experiments showed accurate load–displacement behavior.
  • Increasing the reinforcement ratio enhances punching shear capacity by about 30%, while prestressing tendon placement is critical.
  • Conservative estimates from key design codes emerged, reflecting the need for enhanced predictions under unbalanced moments.

Cite This Study

Randi et al. (2025) studied this question.

synapsesocial.com/papers/6930dc6bea1aef094cca20c7https://doi.org/10.1002/suco.70415
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Also Consider

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  1. 1On the behavior of flat slabs with asymmetric openings near columns: A hypothesis based on numerical simulations and design code‐based analytical models2025 · 4 citations
  2. 2Flat slab‐edge column connections subjected to outward and inward eccentricity: Numerical modeling and comparison with codes2024 · 3 citations
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  4. 4Effect of Openings on Punching Shear Strength of Reinforced Concrete Slabs—Finite Element Investigation2017 · 47 citations