Influence of bond slip on crack spacing in numerical modeling of reinforced concrete

Chen, G. and Baker, Graham (2003) Influence of bond slip on crack spacing in numerical modeling of reinforced concrete. Journal of Structural Engineering, 129 (11). pp. 1514-1521. ISSN 0733-9445

Abstract

This paper investigates the influence of bond slip on crack spacing in reinforced concrete. A bond-link element is used to account for the influence of the bond slip between the concrete and the reinforcing steel. Following a previous work, the writers treat crack spacing as a strain localization problem. A new numerical model for prediction of crack spacing in reinforced concrete is applied. It is assumed that the deformation pattern of crack spacing consumes the least energy among all kinematically admissible deformations, and the energy minimization approach is applied to predict crack spacing. To simplify the problem, a lattice model is used, in which the cracking process is represented by the damage of the concrete bar elements. The influence of the bond slip on the cracking patterns have been studied through three numerical examples. The results show that without considering bond slip, the damage near the reinforcement is distributed rather than localized, whereas considering bond slip, the damage near the reinforcement is localized. The influence of bond slip on crack spacing is significant.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Awaiting Author's version.
Depositing User: Prof Graham Baker
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 29 Oct 2007 07:23
Last Modified: 02 Jul 2013 22:52
Uncontrolled Keywords: concrete, reinforcement; cracking; slip; strain; numerical analysis
Fields of Research (FOR2008): 01 Mathematical Sciences > 0103 Numerical and Computational Mathematics > 010301 Numerical Analysis
09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Identification Number or DOI: doi: 10.1061/(ASCE)0733-9445(2003)129:11(1514)
URI: http://eprints.usq.edu.au/id/eprint/3453

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