Analysis of Mechanical Behavior of Corroded Reinforced Concrete Structures
Journal article, 2011

This paper presents a methodology to analyze the mechanical behavior and remaining load-carrying capacity of corroded reinforced concrete (RC) structures. The methodology is used to predict the mechanical behavior for a structure with an observed amount of uniform and pitting corrosion at a given time. The effect of corrosion is modeled as a change in geometry and properties of corroded reinforcement and surrounding concrete—that is, a reduction of steel area and ductility, removal of spalled concrete, modification of concrete response due to corrosion cracks, and modification of bond-slip properties. The methodology is applied to concrete beams affected by reinforcement corrosion, using both finite element analyses and analytical methods. A comparison of the results with available experiments from the literature indicated that the changes in failure mode and failure load caused by uniform and pitting corrosion of reinforcement can be predicted reasonably well by using the proposed methodology.

load-carrying capacity

material properties

corrosion of reinforcement

bond properties

existing concrete structures

Author

Kamyab Zandi

Chalmers, Civil and Environmental Engineering, Structural Engineering

Per Kettil

Chalmers, Applied Mechanics, Material and Computational Mechanics

Karin Lundgren

Chalmers, Civil and Environmental Engineering, Structural Engineering

ACI Structural Journal

0889-3241 (ISSN)

Vol. 108 5 532-541

Driving Forces

Sustainable development

Areas of Advance

Building Futures (2010-2018)

Subject Categories

Civil Engineering

Reliability and Maintenance

More information

Created

10/7/2017