Evaluation, Calibration, and Verification of a Reinforced Concrete Beam–Column Joint Model
Publication: Journal of Structural Engineering
Volume 133, Issue 1
Abstract
A model for use in simulating the response of reinforced concrete interior beam–column joints is developed and evaluated using an extensive experimental data set. This model builds on previous work by Lowes and Altoontash in 2003, modifying the previously proposed model to improve prediction of response and extend the range of applicability. First, a new element formulation is proposed to improve simulation of joint response mechanisms. Second, a new method for simulating the shear stress-strain response of the joint core is developed. This method assumes joint shear is transferred through a confined concrete strut and simulates strength loss due to load history and joint damage following yielding of beam longitudinal steel. Third, modifications are made to enable better simulation of anchorage zone response. Comparison of simulated and observed response histories indicates that the new model represents well stiffness and strength response parameters for joints with a wide range of design parameters.
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Acknowledgments
This work was supported by the Earthquake Engineering Research Centers Program of the National Science Foundation, under Award No. NSFEEC-9701568 through the Pacific Earthquake Engineering Research Center (PEER). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the writers and do not necessarily reflect those of the National Science Foundation.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 133 • Issue 1 • January 2007
Pages: 105 - 120
Copyright
© 2007 ASCE.
History
Received: Jul 18, 2005
Accepted: Jul 10, 2006
Published online: Jan 1, 2007
Published in print: Jan 2007
Notes
Note. Associate Editor: Enrico Spacone
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