Punching shear design of RC flat slabs supported on wall corners
File(s)
Published version
OA Location
Author(s)
Setiawan, Andri
Vollum, Robert L
Macorini, Lorenzo
Izzuddin, Bassam A
Type
Journal Article
Abstract
Reinforced concrete buildings are typically braced with shear walls positioned around lift shafts and stairs. Vertical transfer of load from slab to walls leads to a concentration of shear stress in the slab at wall ends and corners, which needs to be considered in punching shear design. This issue is not addressed in EN 1992 (2004) and only partially addressed in fib Model Code 2010 leaving engineers to resort to their own judgment. Consequently, consideration of punching shear at wall corners can be overlooked entirely or not properly addressed through lack of knowledge. The paper addresses this issue by proposing a method for calculating the design shear stress at wall corners for use in conjunction with the Critical Shear Crack Theory. The method is initially validated against test results for slabs supported on elongated columns as well as numerical simulations. Subsequently, the method is extended to the punching design of a slab supported by a wall corner. The proposed analysis of the slab‐wall corner junction is validated against the predictions of nonlinear finite element analysis (NLFEA) employing 3‐D solid elements as well as the joint‐shell punching model (JSPM) previously developed by the authors.
Date Issued
2020-06-01
Date Acceptance
2020-03-08
Citation
Structural Concrete, 2020, 21 (3), pp.859-874
ISSN
1464-4177
Publisher
Wiley
Start Page
859
End Page
874
Journal / Book Title
Structural Concrete
Volume
21
Issue
3
Copyright Statement
© 2020 The Authors. Structural Concrete published by John Wiley & Sons Ltd on behalf of International Federation for Structural Concrete
This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Identifier
https://onlinelibrary.wiley.com/doi/full/10.1002/suco.201900514
Subjects
Science & Technology
Technology
Construction & Building Technology
Engineering, Civil
Engineering
design procedure
finite element methods
punching
CONCRETE FLOOR SLABS
STRENGTH
COMPOSITE
FAILURES
Civil Engineering
0905 Civil Engineering
Publication Status
Published
Date Publish Online
2020-04-03