Predicting Strength of Exterior Wide Beam–Column Joints for Seismic Resistance
Publication: Journal of Structural Engineering
Volume 146, Issue 2
Abstract
An analytical model for predicting the strengths of exterior reinforced concrete wide beam-column joints is developed in this paper. In the proposed model, the shear strength of the joint core is derived based on the softened strut-and-tie concept and the torsional strength of the outer joint is determined using the thin-walled tube space truss analogy. Integration and iteration in the computation processes are minimized to enable easier applications in the design practice. Compared with the predictions by current standards, the model shows high accuracy through experimental verification, with an average strength ratio of 1.04 and a coefficient of variance of 0.14. Owing to its superior accuracy, simplicity, and conservativeness, the proposed model is considered as a suitable tool for the practical design of reinforced concrete wide beam-column joints for seismic resistance in practice.
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Acknowledgments
The support of the Hong Kong Research Grants Council under Grant No. 16209115 is gratefully acknowledged.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 2 • February 2020
Copyright
©2019 American Society of Civil Engineers.
History
Received: Nov 14, 2018
Accepted: Jun 5, 2019
Published online: Dec 14, 2019
Published in print: Feb 1, 2020
Discussion open until: May 14, 2020
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