Analytical model for the bond-slip behaviour of corroded ribbed reinforcement
Artikel i vetenskaplig tidskrift, 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, Bygg- och miljöteknik, Konstruktionsteknik

Per Kettil

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

Kamyab Zandi

Chalmers, Bygg- och miljöteknik, Konstruktionsteknik

Hendrik Schlune

Chalmers, Bygg- och miljöteknik, Konstruktionsteknik

Armando Soto San Roman

Structure and Infrastructure Engineering

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

Vol. 8 2 157-169


Building Futures



Tillförlitlighets- och kvalitetsteknik