Punching Shear Design of Waffle Slabs at Internal Column Connections
Publication: Practice Periodical on Structural Design and Construction
Volume 28, Issue 3
Abstract
This paper presents two models to design waffle slabs against concentric and eccentric punching shear. The suggested design models modify the current code provisions in two ways by replicating the loss of shear surface area of waffle slabs on the code shear critical section, implementing a modified concrete shear strength equation, and introducing a factor to account for the moment transfer for waffle slabs–column connections subjected to eccentric punching shear. The proposed models were verified with the test results of flat slabs from the literature and then applied to predict the punching shear of waffle slabs. The models agree well with the test results of waffle slabs and the test results of flat slabs.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The authors would like to express their gratitude to the Ministry of Higher Education (MOHE) for funding this project under Fundamental Research Grant Scheme (FRGS/1/2019/TK01/UNIM/02/1) and the University of Nottingham Malaysia Campus for the financial support of this project.
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Information & Authors
Information
Published In
Practice Periodical on Structural Design and Construction
Volume 28 • Issue 3 • August 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Sep 26, 2022
Accepted: Feb 21, 2023
Published online: May 17, 2023
Published in print: Aug 1, 2023
Discussion open until: Oct 17, 2023
ASCE Technical Topics:
- Concrete
- Concrete slabs
- Connections (structural)
- Construction engineering
- Construction management
- Engineering materials (by type)
- Engineering mechanics
- Material mechanics
- Material properties
- Materials engineering
- Moment (mechanics)
- Punching shear
- Reinforced concrete
- Shear strength
- Shear stress
- Slabs
- Standards and codes
- Statics (mechanics)
- Strength of materials
- Stress (by type)
- Structural analysis
- Structural engineering
- Structural members
- Structural systems
Authors
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