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Ductility of Flat Plates: Comparison of Shear Reinforcement Systems
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
2007 (English)In: ACI Structural Journal, ISSN 0889-3241, Vol. 104, no 6, 703-711 p.Article in journal (Refereed) Published
Abstract [en]

Two shear reinforcement systems were tested for their ability to provide ductile behavior to flat plates. The specimens with shear studs failed in premature punching without reaching their flexural capacity Vy (corresponding to yield of all top flexural reinforcementover the specimen width) despite that their nominal punching capacity according to ACI 421.IR-99 and CEB-FIP Model Code 1990 was larger than Vy. This was found to be more serious for flat plate structures than for test specimens due to the provisions of ACI 318-05 for design and lateral distribution of the flexural reinforcement in flat plates. Proposed modification of the code provisions is therefore given. The specimens with ductilityreinforcement could resist considerable additional deflection with continuously increasing loading after overall yield of the flexural reinforcement, which means that thesystem has good ability to sustain moment redistribution and accidental loads, and progressive collapse is prevented in a reliable way. 

Place, publisher, year, edition, pages
2007. Vol. 104, no 6, 703-711 p.
Keyword [en]
bars, flexural capacity, loads, plates, punching shear, shear, stirrups, studs
National Category
Civil Engineering
URN: urn:nbn:se:kth:diva-78178OAI: diva2:492324
QC 20120306Available from: 2012-02-07 Created: 2012-02-07 Last updated: 2012-03-06Bibliographically approved

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