S C O T TConcrete Society Technical Report No. 43 TR.043 Published 1994 ISBN 0 946691 45 2 Published by The Concrete Society No. 3, Eatongate Slough SL1 2JA Further copies may be obtained from Publication Sales, The Concrete Soaety QThe Concrete Society 1994 All rights reserved, except as permitted under current legislation. No part of this work may be photo- copied, stored in a retrieval system, published, performed in public, adapted, broadcast, transmitted, recordedorreproducedinanyform or byany means,withoutthepriorpermission ofcopyright owner. Enquiries should be addressed to The Concrete Society. Although The Concrete Society (limited by guarantee) does its bestto ensure that any advice, reco-m- mendations or information ii may give either in this publication or elsewhere is accurate, no liability or responsibility of any kind(including liability for negligence) howsoever andfrom whatsoever cause arising, is accepted in this respect bythe Society, its servants or agents. CONCRETE SOCXET'II TECHNICAL REPORT POST-TENSIONED CONCRETE FLOORS - DESIGN HANDBOOK This TechnicalReport wasprepared by a Working Party oftheSociety's DesignGroup whichis one ofthespecialist technical groups within The Technical Development Cen:re.

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Members of the Working Party ME Rai i s (Convenor)ROW&Benaim and Asmiates MA. PhD,CEng, MICE, MIStructE G A Bell BSc, CEng, MICE P W Matthew BE, MSc, MIE AusL RT Whitde MA(Cdnmb), CEn& MICE CCL Syslems Ltd Swift Smcrures Ltd Ove Arup and Partners ACKNOWLEDGEMENT Duringthedraftingofthisreporttheworkingpartyreceivedalargenumberofhelpful commenrrcfrommembers of theindustry. Assistanceinpreparationofthereport bythefollowingmembersofArupResearchand Development is gratefully acknowledged: Kate Benton, Ian Feltham, JonathanF~nch, Geoff Lavender, Paula Youngs. CONTENTS 1.Intmduction 1.1Advantages of post-tensioned floors 12Sltuctural types considered 1.4Bonded ar unbonded tendons 1.5Analytical techniques 2.1Effecrs of pascess 2.2One-way and two-wayspanning flmrs 2.3Flexure inone-wayflmrs 2.4-Flexure infIatslab (hvo-way r p n g )... 2.4.1Fkt slab critehi2:. 3.1Column layout 3 3 ':Floor i h i c b and types.:,..

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Technical Report 43, Post-tensioned concrete floors - Design Hand- b0old4), which was published in 1994, combined the earlier reports and expanded some of the recommendations in line with current practice and the requirements of BS 8110(5). CONCRETE SOCXET'II TECHNICAL REPORT POST-TENSIONED CONCRETE FLOORS - DESIGN HANDBOOK This TechnicalReport wasprepared by a Working Party oftheSociety's DesignGroup whichis one ofthespecialist technical groups within The Technical Development Cen:re. Members of the Working Party ME Rai i s (Convenor)ROW&Benaim and Asmiates MA.