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.

reinforcement

bond slip

concrete

analytical model

corrosion

Författare

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

Styrkeområden

Building Futures

Ämneskategorier

Samhällsbyggnadsteknik

Tillförlitlighets- och kvalitetsteknik

DOI

10.1080/15732470903446993