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Analytical model for the bond-slip behaviour of corroded ribbed reinforcement
2012 (English)In: Structure and Infrastructure Engineering, ISSN 1573-2479, E-ISSN 1744-8980, Vol. 8, no 2, p. 157-169Article in journal (Refereed)
Abstract [en]

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 with 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 behaviour.

Place, publisher, year, edition, pages
2012. Vol. 8, no 2, p. 157-169
Keyword [en]
analytical model, bond slip, concrete, corrosion, reinforcement
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-2723Local ID: 3992OAI: oai:DiVA.org:ri-2723DiVA, id: diva2:960326
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2017-11-21Bibliographically approved

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