Stress–Strain Model for Laterally Confined Concrete
Publication: Journal of Materials in Civil Engineering
Volume 17, Issue 6
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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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 17 • Issue 6 • December 2005
Pages: 607 - 616
Copyright
© 2005 ASCE.
History
Received: Oct 1, 2002
Accepted: Feb 3, 2004
Published online: Dec 1, 2005
Published in print: Dec 2005
Notes
Note. Associate Editor: Christopher K. Y. Leung
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