000201177 001__ 201177
000201177 005__ 20181203023559.0
000201177 0247_ $$2doi$$a10.1016/j.engstruct.2014.04.034
000201177 022__ $$a0141-0296
000201177 02470 $$2ISI$$a000337874200006
000201177 037__ $$aARTICLE
000201177 245__ $$aInfluence of prestressing on the punching strength of post-tensioned slabs
000201177 260__ $$aOxford$$bElsevier Sci Ltd$$c2014
000201177 269__ $$a2014
000201177 300__ $$a14
000201177 336__ $$aJournal Articles
000201177 520__ $$aPrevious researches on punching of post-tensioned slabs have shown a number of phenomena significantly influencing their strength and behaviour. However, no general agreement is yet found on a physical theory (either in codes of practice or in design models) suitably describing the influence of prestressing and how should it be accounted on the punching shear behaviour. In this paper, the authors present the results of tests on 15 slabs (3000 x 3000 x 250 mm) tested to failure under different loading conditions. The aim of the tests was to investigate in a separate manner the different actions induced by prestressing on the punching shear strength (in-plane forces, bending moments and bonded tendons). These results are finally investigated on the basis of the physical model of the Critical Shear Crack Theory. The fundamentals of this theory are presented and adapted to post-tensioned slabs, providing a rational explanation of the observed phenomena and measured strengths. (C) 2014 Elsevier Ltd. All rights reserved.
000201177 6531_ $$aPunching
000201177 6531_ $$aPost-tensioned slabs
000201177 6531_ $$aCritical Shear Crack Theory
000201177 6531_ $$aIn-plane forces
000201177 6531_ $$aPrestressing tendons
000201177 700__ $$0243856$$aClement, Thibault$$g172196$$uEcole Polytech Fed Lausanne, ENAC, Lausanne, Switzerland
000201177 700__ $$aRamos, Antonio Pinho
000201177 700__ $$0240571$$aRuiz, Miguel Fernandez$$g166236$$uEcole Polytech Fed Lausanne, ENAC, Lausanne, Switzerland
000201177 700__ $$0240411$$aMuttoni, Aurelio$$g133346$$uEcole Polytech Fed Lausanne, ENAC, Lausanne, Switzerland
000201177 773__ $$j72$$q56-69$$tEngineering Structures
000201177 909C0 $$0252126$$pIBETON$$xU10235
000201177 909CO $$ooai:infoscience.tind.io:201177$$particle$$pENAC
000201177 937__ $$aEPFL-ARTICLE-201177
000201177 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000201177 980__ $$aARTICLE