Transition from one-way to two-way shear by coupling lefea and the csct models

Alex de Sousa, Eva Lantsoght, Andri Setiawan, Mounir El Debs

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

Bridge deck slabs without shear reinforcement under concentrated loads close to line supports may develop different shear failure modes: (i) one-way shear by shear-compression or flexure-shear failure mechanisms and (ii) two-way shear or punching shear under asymmetrical loading conditions. Notably, most publications concentrate on one of the failure modes and do not delve into the transition between these failure modes. This study proposes to discuss the level of precision of the Critical Shear Crack Theory (CSCT) to predict the shear capacity of slabs subjected to transitional failure modes in shear due to asymmetrical load or support conditions. For this purpose, the CSCT models of one-way shear and two-way shear are coupled with Linear Elastic Finite Element Analyses (LEFEA) to evaluate the non-uniform distribution of shear forces and bending moments around the loaded area and on the control sections used. The use of LEFEA aids in understanding the change of failure modes according to parameters such as the member width to effective depth ratio and the shear span. The results indicate that the CSCT coupled with LEFEA allows for accurate predictions of the shear and punching shear capacity of slabs according to the governing failure mode of the tests.

Idioma originalInglés
Título de la publicación alojadaConcrete Structures
Subtítulo de la publicación alojadaNew Trends for Eco-Efficiency and Performance - Proceedings of the fib Symposium 2021
EditoresEduardo Julio, Jonatas Valenca, Ana Sofia Louro
Editorialfib. The International Federation for Structural Concrete
Páginas1710-1719
Número de páginas10
ISBN (versión digital)9782940643080
EstadoPublicada - 2021
Evento2021 fib Symposium of Concrete Structures: New Trends for Eco-Efficiency and Performance - Virtual, Lisbon, Portugal
Duración: 14 jun. 202116 jun. 2021

Serie de la publicación

Nombrefib Symposium
Volumen2021-June
ISSN (versión impresa)2617-4820

Conferencia

Conferencia2021 fib Symposium of Concrete Structures: New Trends for Eco-Efficiency and Performance
País/TerritorioPortugal
CiudadVirtual, Lisbon
Período14/06/2116/06/21

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