Unbalanced Moment Resistance in Slab-Column Joints: Analytical Assessment
Publication: Journal of Structural Engineering
Volume 134, Issue 5
Abstract
ACI 318-05 considers that unbalanced moment, , transferred between column and slab is resisted in part by shear and the remaining part, by flexure. The code specifies the fraction and permits, in Section 13.5.3.3, that the fraction can be decreased when two requirements for the shearing force, , and for the flexural reinforcement ratio, , are satisfied. Nonlinear finite-element analyses for interior, edge, and corner connections are employed to calculate the value of at all load stages up to failure, indicating that the reduction as permitted by 13.5.3.3 is not justified. This statement is supported by experimental interaction graph.
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Acknowledgments
This work was funded by a research grant from the Natural Sciences and Engineering Research Council of Canada.
References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 134 • Issue 5 • May 2008
Pages: 859 - 864
Copyright
© 2008 ASCE.
History
Received: Jan 6, 2005
Accepted: Jul 19, 2007
Published online: May 1, 2008
Published in print: May 2008
Notes
Note. Associate Editor: Dat Duthinh
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