Failure mode transitions of corroded deep beams exposed to marine environment for long period

Abstract : This paper presents an investigation of the residual structural response of corroded, deep, reinforced concrete (RC) beams. A three-point loading test was carried out on two corroded deep beams that had been stored in a natural corrosive environment for 28 years. Two uncorroded beams with the same steel configuration and span were tested to understand the impact of corrosion on the residual mechanical performance of the deep beams. The distribution of corrosion and gravimetric cross-section loss of the tension bars were measured. The corroded tension bars were extracted from the beams to study the residual mechanical properties. The load-bearing capacities of the corroded beams were assessed using the measured mechanical properties and the residual cross-section of the bars according to different failure mechanisms. The results show that, in this case, the corrosion of steel reinforcing bars could change the failure mode of the reinforced concrete beams from shear to flexure. (C) 2015 Elsevier Ltd. All rights reserved.
Document type :
Journal articles
Complete list of metadatas

https://hal.insa-toulouse.fr/hal-01849767
Contributor : Insa Toulouse Scd <>
Submitted on : Thursday, July 26, 2018 - 2:42:09 PM
Last modification on : Friday, October 25, 2019 - 6:16:35 PM

Identifiers

Citation

Raoul Francois, David Cleland, Dario Coronelli, Wenjun Zhu. Failure mode transitions of corroded deep beams exposed to marine environment for long period. Engineering Structures, Elsevier, 2015, 96, pp.66--77. ⟨10.1016/j.engstruct.2015.04.004⟩. ⟨hal-01849767⟩

Share

Metrics

Record views

14