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September 5, 2025Advances in Structural Engineering

Punching shear failure behaviors of unbonded prestressed slab-column connections: Numerical investigation and code comparisons

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Authors

TQTao QuCWChang WuLHLinjie Huang

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Overview

Numerical models reveal distinct punching shear behaviors in slab-column structures, indicating code performance variations.

Key Points

  • Numerical models show distinct punching shear failure patterns in RCS-C and UBPS-C connections, highlighting safety concerns.
  • RCS-C connections demonstrated conventional conical punching failure, while UBPS-C connections exhibited circular damage propagation.
  • Different design codes predict punching shear resistance with varying accuracy, suggesting adjustments for improved safety and performance.
  • Prestressing tendons significantly enhance load-carrying capacity and ductility in unbonded prestressed connections, improving structural integrity.

Cite This Study

Qu et al. (2025) studied this question.

synapsesocial.com/papers/68bb421a2b87ece8dc958766https://doi.org/10.1177/13694332251375198
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