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Assessment of the Partial Safety Factor Related to Resistance Model Uncertainties in 2D NLFEAs of R.C. Systems Read chapter Read first chapter

2020 | OriginalPaper | Chapter

Design Recommendations for Foundation Slabs with Punching Shear Reinforcement

Authors : E. Camnasio, J. Bujnak

Published in: Proceedings of Italian Concrete Days 2018

Publisher: Springer International Publishing

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Abstract

The structural performance of reinforced concrete foundation slabs or footings supporting isolated columns is often limited by the punching shear capacity in the area around the column. This can be significantly increased by using vertical punching shear reinforcement, which is typically provided under the form of tailor made stirrups or industrially produced double-headed studs. The lack of knowledge about the performance of slabs reinforced with this kind of reinforcement elements, which are not included in current EN 1992-1-1, has been the main motivation behind an experimental research program at the EPFL in Lausanne consisting in full scale laboratory tests of footings reinforced with Peikko PSB® studs. The results of this program have been used to develop design recommendations for slabs reinforced with Peikko PSB® studs that are now implemented in ETA 13/0151. The paper summarizes the main outcomes of the research project and presents practical design recommendations yielding from it.

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Literature
Bujnak J (2015) ETA 13/0151: design of flat slabs with PSB reinforcement elements. Concr Connect 1(2015):19–22
BS (British Standards) (2009) UK national annex to Eurocode 2, EN 1992-1-1/NA:2009. London
CEN (European Committee for Standardization) (2004) Eurocode 2: design of concrete structures. General rules and rules for buildings, EN 1992-1-1:2004. Brussels
CEN (European Committee for Standardization) (2014) Amendement for: design of concrete structures. General rules and rules for buildings, EN 1992-1-1/A1:2014. Brussels
DIN (German Institute for Standardization) (2011) Nationaler Anhang - National festgelegte Parameter - Eurocode 2: Bemessung und Konstruktion von Stahlbeton - und Spannbetontragwerken - Teil 1-1: Allgemeine Bemessungsregeln und Regeln für den Hochbau, EN 1992-1-1/NA:2011. Berlin
EOTA (2012) Common understanding of assessment procedure 03.01/05. Double-headed studs for the increase of punching resistance in flat slabs on column, for European technical approval. Brussels
ETA 13/0151 (European Technical Assessment) (2018) Peikko PSB punching reinforcement
European Concrete Platform (2008) ASBL: Eurocode 2 commentary. Brussels
Lips S, Fernández Ruiz M, Muttoni A (2012) Experimental investigation on the punching strength and the deformation capacity of shear-reinforced slabs. ACI Struct J 109(6):889–900
Muttoni A, Bujnak J (2013) Performance of slabs reinforced by Peikko PSB studs demonstrated by full scale tests and validated by ETA approval starting April 2013. Concr Connect 1(2013):18–23
Onorm (Austrian Standard) (2011) National annex to Eurocode 2 of Austria, B EN 1992-1-1/NA:2011. Vienna
Peikko Group (2013) PSB® Reinforcement against punching failure of slabs. Technical manual
SIS (Swedish Standards Institute) (2011) National annex to Eurocode 2 of Sweden, EN 1992-1-1/NA:2011. Stockholm
SFS (Finnish Standards Association) (2007) The Finnish national annex to the standard SFS-EN 1992-1-1, EN 1992-1-1/NA:2007. Helsinki
Simões JT, Bujnak J, Fernández Ruiz M, Muttoni A (2016) Punching shear tests on compact footings with uniform soil pressure. Struct Concr 4:603–617CrossRef
STN (Slovak Technical Standard) (2013) National annex to Eurocode 2 of Slovakia, EN 1992-1-1/NA/Z1:2013. Bratislava
Metadata
Title
Design Recommendations for Foundation Slabs with Punching Shear Reinforcement
Authors
E. Camnasio
J. Bujnak
Copyright Year
2020
Book
Proceedings of Italian Concrete Days 2018

Print ISBN: 978-3-030-23747-9

Electronic ISBN: 978-3-030-23748-6

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-3-030-23748-6_14