Stress-strain model for laterally confined concrete

Lokuge, Weena P. and Sanjayan, J. G. and Setunge, Sujeeva (2005) Stress-strain model for laterally confined concrete. Journal of Materials in Civil Engineering, 17 (6). pp. 607-616. ISSN 0899-1561

Abstract

[Abstract]: High strength concrete HSC with highly desirable structural properties can lead to significant cost savings in heavily loaded lower story columns of concrete structures. Its use has however, been limited by a concern regarding an increased brittleness compared to normal strength concrete. It is well established that the ductility of HSC columns can be increased by confinement of the core of concrete columns by lateral steel reinforcement. Confining pressure applied by the reinforcement is a function of the lateral strain of concrete. Therefore establishing axial stress, axial strain, and lateral strain relationships is a timely concern. Based on shear failure of concrete, a simple strain-based model is proposed in this paper. It is developed using prevailing test results for HSC with active confinement.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author version not held. Permanent restricted access to published version due to publisher's copyright restrictions.
Depositing User: Dr Weena Lokuge
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 15 Nov 2010 23:10
Last Modified: 03 Jul 2013 00:05
Uncontrolled Keywords: high strength concretes; stress strain relations; concrete structures; brittleness; confinement; failures
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1061/ASCE0899-1561200517:6607
URI: http://eprints.usq.edu.au/id/eprint/8962

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