A parametric finite element study of concrete cone failure in headed bars under tensile loading

João Paulo de Barros Santos; Marcos Honorato de Oliveira; Nataniel Wontoon Barbosa Lima; Manoel José Mangabeira Pereira Filho; Mauricio de Pina Ferreira

doi:10.1590/1679-78257940

A parametric finite element study of concrete cone failure in headed bars under tensile loading

Authors

João Paulo de Barros Santos Departamento de Engenharia Civil e Ambiental, Universidade de Brasília, Brasília, Distrito Federal, Brasil. https://orcid.org/0000-0003-4676-2222
Marcos Honorato de Oliveira Departamento de Engenharia Civil e Ambiental, Universidade de Brasília, Brasília, Distrito Federal, Brasil. https://orcid.org/0000-0003-1251-7923
Nataniel Wontoon Barbosa Lima Departamento de Engenharia Civil e Ambiental, Universidade de Brasília, Brasília, Distrito Federal, Brasil. https://orcid.org/0000-0003-4325-8362
Manoel José Mangabeira Pereira Filho Núcleo de Desenvolvimento Amazônico em Engenharia, Universidade Federal do Pará, Belém, Pará, Brasil. https://orcid.org/0000-0001-9622-3863
Mauricio de Pina Ferreira Núcleo de Desenvolvimento Amazônico em Engenharia, Universidade Federal do Pará, Belém, Pará, Brasil. https://orcid.org/0000-0001-8905-9479

DOI:

https://doi.org/10.1590/1679-78257940

Abstract

This article presents a parametric numerical study of the pullout behavior of headed bars embedded in concrete elements. The finite element model was developed using Abaqus software and validated to simulate the behavior of four pullout tests. The numerical results were validated against the experimental results and showed excellent agreement with the load–slip response and failure modes. Furthermore, a parametric numerical study with 23 simulations was planned to explore the influence of several variables on concrete cone failure, including concrete strength, flexural reinforcement ratio, geometry and head size, shaft diameter, and edge and group effects. The ultimate load results, failure modes, and influence on ultimate load are discussed.

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Published

2024-01-30

Issue

Vol. 21 No. 2 (2024)

Section

Articles

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