Study of service life of concrete girder bridge on the sea

T. J. Da Silva; A. M. Gomes

doi:10.3989/mc.2003.v53.i271-272.299

Study of service life of concrete girder bridge on the sea

Authors

T. J. Da Silva Universidad Federal de Uberlândia. Facultad de Ingeniería Civil, Uberlândia, Minas Gerais
A. M. Gomes Universidad Federal de Minas Gerais

DOI:

https://doi.org/10.3989/mc.2003.v53.i271-272.299

Keywords:

service life, corrosion, concrete bridges, structural reliability, cracking

Abstract

The objective of this paper is to study the evolution of the failure probability of the concrete beams to estimate the service life of a sea bridge in the southeast region of Brazil. The mechanism of deterioration analyzed in the study was the corrosion of the reinforcing bars. The models utilized for that are related with the carbonation and penetration of chlorides. Tests have been carried out for the characterization of the main variables used in the calculations and in the deterioration models. The information was completed with the control data obtained during the construction. It was obtained the functions of conjoined density of the variables through simulation. The method FORM was used to estimate the failure probability. For an adopted failure probability of 10^-3 cracking due the corrosion products, the obtained values for the service lives for the 25 analyzed beams were in a range of 25 up to 70 years.

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Published

2003-12-30

How to Cite

Da Silva, T. J., & Gomes, A. M. (2003). Study of service life of concrete girder bridge on the sea. Materiales De Construcción, 53(271-272), 145–154. https://doi.org/10.3989/mc.2003.v53.i271-272.299

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Issue

Vol. 53 No. 271-272 (2003)

Section

Research Articles

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