Shear and Punching Capacity Predictions for One-Way Slabs under Concentrated Loads Considering the Transition between Failure Mechanisms

Author(s)

de Sousa, Alex Micael Dantas ; Lantsoght, Eva Olivia Leontien ; El Debs, Mounir Khalil

• Document type: Journal article
• Source: BUILDINGS; v. 13, n. 2, p. 28-pg., 2023-02-01.

Abstract

Reinforced concrete one-way slabs under concentrated loads can develop different shear failure mechanisms: as wide beams in one-way shear, punching shear around the load or a mixed mode between them. Until now, most publications presented recommendations to assess the shear capacity considering only the one-way shear failure mechanism. This study proposed developing recommendations to assess both the one-way shear and punching shear capacity of such slabs. Different codes of practice were addressed, including the current Eurocode and fib Model Code 2010 expressions. The recommendations were validated against 143 test results from the literature. Following these recommendations, one-way shear and punching capacities predictions achieved enhanced and almost the same level of accuracy. (AU)

• FAPESP's process: 21/13916-0 - Strategies development for one-way shear and punching shear resistance analyses in bridge slabs
• Grantee: Alex Micael Dantas de Sousa
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 19/20092-3 - Calibration of shear strength calculation models to bridge slabs with emphasis on the national designs practice
• Grantee: Mounir Khalil El Debs
• Support Opportunities: Regular Research Grants
• FAPESP's process: 18/21573-2 - Calibration of shear strength calculation models to bridge slabs with emphasis on the national designs practice
• Grantee: Alex Micael Dantas de Sousa
• Support Opportunities: Scholarships in Brazil - Doctorate