Analytical model for the bond-slip behaviour of corroded ribbed reinforcement
Journal article, 2012

Corrosion of reinforcement affects the bond mechanism between reinforcement and concrete, and thus the anchorage. Reliable models describing this are needed especially for assessment of the load-carrying capacity of existing structures. This paper presents an analytical one-dimensional model for bond-slip response of corroded reinforcement. The proposed model is an extension of the bond-slip model given in the CEB-FIP Model Code 1990, and is practically applicable for structural analyses to determine the load-carrying capacity of corroded structures. Furthermore, the anchorage length needed to anchor the yield force is calculated from the bond slip, using the one-dimensional bond-slip differential equation. Results of the proposed model are compared to experimental results as well as results from an advanced three-dimensional finite element model. The suggested model is shown to give results that are consistent with the physical behavior.


bond slip


analytical model



Karin Lundgren

Chalmers, Civil and Environmental Engineering, Structural Engineering

Per Kettil

Chalmers, Applied Mechanics, Material and Computational Mechanics

Kamyab Zandi

Chalmers, Civil and Environmental Engineering, Structural Engineering

Hendrik Schlune

Chalmers, Civil and Environmental Engineering, Structural Engineering

Armando Soto San Roman

Structure and Infrastructure Engineering

1573-2479 (ISSN) 1744-8980 (eISSN)

Vol. 8 2 157-169

Areas of Advance

Building Futures (2010-2018)

Subject Categories

Civil Engineering

Reliability and Maintenance



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