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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Reliability-based design of reinforced concrete pipes to satisfy the TEBT

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Author(s):
Alex Micael Dantas de Sousa [1] ; Lisiane Pereira Prado [2] ; Mounir Khalil El Debs [3]
Total Authors: 3
Affiliation:
[1] Universidade de São Paulo. Escola de Engenharia de São Carlos - Brasil
[2] Universidade Estadual Paulista. Faculdade de Engenharia - Brasil
[3] Universidade de São Paulo. Escola de Engenharia de São Carlos - Brasil
Total Affiliations: 3
Document type: Journal article
Source: LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES; v. 20, n. 7 2023-08-28.
Abstract

Abstract Reinforced concrete pipes are usually designed to attend a three-edged-bearing test (TEBT) using the partial safety factors from building structures. This study presents an alternative approach to designing RC pipes based on simplified reliability analyses. The procedure consists of providing curves of failure probability according to the reinforcement areas used in the pipes. The results indicate that RC pipes with simple reinforcement show a failure probability of around 1% with the most traditional design method, even using the partial safety factors from buildings, due to the higher dispersion of the concrete cover and the use of a single reinforcement layer to satisfy different control sections. Meanwhile, RC pipes with double reinforcement show a significantly lower failure probability as each reinforcement layer is designed to satisfy the bending moments from different control sections and due to the larger pipe thickness. In summary, the large randomness of the reinforcement position increases the failure probability of these members compared to traditional building structures. (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