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Punching shear design of RC flat slabs supported on wall corners

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Title: Punching shear design of RC flat slabs supported on wall corners
Authors: Setiawan, A
Vollum, RL
Macorini, L
Izzuddin, BA
Item 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.
Issue Date: 1-Jun-2020
Date of Acceptance: 8-Mar-2020
URI: http://hdl.handle.net/10044/1/77861
DOI: 10.1002/suco.201900514
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.
Keywords: 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
Open Access location: https://doi.org/10.1002/suco.201900514
Online Publication Date: 2020-04-03
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering