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It covers ultimate limit state aspects (including flexure and punching shear) and serviceability limit state requirements such as crack limitation, deflections, tendon force, vibration, fire resistance, and corrosion protection. The report further addresses detail design issues, tendon arrangement, construction procedures for bonded and unbonded systems, preliminary design, execution of calculations via flow and examples, and summaries of completed structures, supported by appendices with symbols, definitions, and standards overview.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/vsl-report-series-post-tensioned-slabs-fundamentals-of-the-design-process/650214/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/vsl-report-series-post-tensioned-slabs-fundamentals-of-the-design-process/650214.png","ImageObject",300,407,{"name":92,"@type":93},"I feel Different","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What advantages does post-tensioned construction offer compared with reinforced concrete?","Question",{"text":112,"@type":113},"The report highlights savings in concrete and steel due to more slender designs, smaller deflections, good crack behaviour for corrosion protection, permanent serviceability after overload, and high fatigue strength because stress amplitude in prestressing steel remains small.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which topics are covered under the ultimate limit state and serviceability limit state?",{"text":117,"@type":113},"Ultimate limit state sections address flexure and punching shear. Serviceability limit state sections cover crack limitation, deflections, tendon force, vibrations, fire resistance, and corrosion protection.",{"name":119,"@type":110,"acceptedAnswer":120},"How does the report treat construction procedures for bonded versus unbonded post-tensioning?",{"text":121,"@type":113},"Construction procedures are presented with separate treatment for bonded post-tensioning and for unbonded post-tensioning, after covering general aspects and tendon fabrication. 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Ritz, Civil Engineer ETH  \nP. Matt, Civil Engineer ETH  \nCh. Tellenbach, Civil Engineer ETH  \nP. Schlub, Civil Engineer ETH  \nH. U. Aeberhard, Civil Engineer ETH  \nCopyright  \nVSL INTERNATIONAL LTD, Berne/Swizerland  \nAll rights reserved  \nPrinted in Switzerland  \nForeword  \nWith the publication of this technical report, VSL INTERNATIONAL LTD is pleased to make a contribution to the development of Civil Engineering.  \nThe research work carried out throughout the world in the field of post-tensioned slab structures and the associated practical experience have been reviewed and analysed in order to etablish the recommendations and guidelines set out in this report. The document is intended primarily for design engineers, but we shall be very pleased if it is also of use to contractors and clients. Through our  \nrepresentatives we offer to interested parties throughout the world our assistance end support in the planning, design and construction of posttensioned buildings in general and posttensioned slabs in particular.  \nI would like to thank the authors and all those who in some way have made a contribution to the realization of this report for their excellent work. My special thanks are due to Professor Dr B. Thürlimann of the Swiss Federal Institute of Technology (ETH) Zürich and his colleagues, who were good enough to reed through and critically appraise the manuscript.  \nHans Georg Elsaesser  \nChairman of the Board and President  \nBerne, January 1985 IfVSLINTERNATIONALLTD  \nTable of contents  \nPage  \n1. lntroduction 2  \n1.1. General 2  \n1.2. Historical review 2  \n1.3. Post-tensioning with or without bonding of tendons 3  \n1.4. Typical applications of post-tensioned slabs 4  \n2. Fundamentals of the design process 6  \n2.1. General 6  \n2.2. Research 6  \n2.3. Standards 6  \n3. Ultimate limit state 6  \n3 1 Flexure 6  \n3.2 Punching shear 9  \n4. Serviceability limit state 11  \n41 Crack limitation 11  \n42. Deflections 12  \n43 Post-tensioning force in  \nthe tendon 12  \n44 Vibrations 13  \n45 Fire resistance 13  \n4Z Corrosion protection 13  \nPage  \n5. Detail design aspects 13  \n5.1. Arrangement of tendons 13  \n5.2. Joints  \n6.Construction procedures 16  \n6.1. General 16  \n6.2. Fabrication of the tendons 16  \n6.3. Construction procedure for bonded post-tensioning 16  \n6.4. Construction procedure for  \nunbonded post-tensioning 17  \n7. Preliminary design 19  \n8. Execution of the calculations 20  \n8.1. Flow diagram 20  \n8.2. Calculation example 20  \n9. Completed structures 26  \n9.1. Introduction 26  \n9.2.Orchard Towers, Singapore 26  \n9.3. Headquarters of the Ilford Group,  \nBasildon, Great Britain 28  \n9.4.Centro Empresarial, São Paulo,  \nBrazil 28  \nPage  \n9.5. Doubletree Inn, Monterey, California,USA 30  \n9.6. Shopping Centre, Burwood, Australia 30  \n9.7. Municipal Construction Office Building, Leiden,Netherlands 31  \n9.8.Underground garage for ÖVA Brunswick, FR Germany 32  \n9.9. Shopping Centre, Oberes Murifeld/Wittigkooen, Berne,  \nSwitzerland 33  \n9.10. Underground garage Oed XII, Lure, Austria 35  \n9.11. Multi-storey car park,  \nSeas-Fee, Switzerland 35  \n9.12. Summary 37  \n10. Bibliography 38  \nAppendix 1: Symbols/ Definitions/ Dimensional units/ Signs  \nAppendix 2: Summary of various standards for unbonded post-tensioning  \n39  \n41  \n1  \n1. Introduction  \n1.1. General  \nPost-tensioned construction has for many years occupied a very important position, especially in the construction of bridges and storage tanks. The reason for this lies in its decisive technical and economical advantages.  \nThe most important advantages offered by post-tensioning may be briefly recalled here:  \n- By comparison with reinforced concrete, a con","cbCaimDLQYf5rqJm","https://ap.wps.com/l/cbCaimDLQYf5rqJm","pdf",3804762,44,"English","# Introduction\n## General\n## Historical review\n## Post-tensioning with or without bonding of tendons\n## Typical applications of post-tensioned slabs\n# Fundamentals of the design process\n## General\n## Research\n## Standards\n# Ultimate limit state\n## Flexure\n## Punching shear\n# Serviceability limit state\n## Crack limitation\n## Deflections\n## Post-tensioning force in the tendon\n## Vibrations\n## Fire resistance\n## Corrosion protection\n# Detail design aspects\n## Arrangement of tendons\n# Construction procedures\n## General\n## Fabrication of the tendons\n## Construction procedure for bonded post-tensioning\n## Construction procedure for unbonded post-tensioning\n# Preliminary design\n# Execution of the calculations\n## Flow diagram\n## Calculation example\n# Completed structures\n## Introduction\n## Orchard Towers, Singapore\n## Headquarters of the Ilford Group, Basildon, Great Britain\n## Centro Empresarial, São Paulo, Brazil\n## Doubletree Inn, Monterey, California, USA\n## Shopping Centre, Burwood, Australia\n## Municipal Construction Office Building, Leiden, Netherlands\n## Underground garage for ÖVA Brunswick, FR Germany\n## Shopping Centre, Oberes Murifeld/Wittigkooen, Berne, Switzerland\n## Underground garage Oed XII, Lure, Austria\n## Multi-storey car park, Seas-Fee, Switzerland\n## Summary\n# Bibliography\n# Appendix 1: Symbols/Definitions/Dimensional units/Signs\n# Appendix 2: Summary of various standards for unbonded post-tensioning","[{\"question\":\"What advantages does post-tensioned construction offer compared with reinforced concrete?\",\"answer\":\"The report highlights savings in concrete and steel due to more slender designs, smaller deflections, good crack behaviour for corrosion protection, permanent serviceability after overload, and high fatigue strength because stress amplitude in prestressing steel remains small.\"},{\"question\":\"Which topics are covered under the ultimate limit state and serviceability limit state?\",\"answer\":\"Ultimate limit state sections address flexure and punching shear. Serviceability limit state sections cover crack limitation, deflections, tendon force, vibrations, fire resistance, and corrosion protection.\"},{\"question\":\"How does the report treat construction procedures for bonded versus unbonded post-tensioning?\",\"answer\":\"Construction procedures are presented with separate treatment for bonded post-tensioning and for unbonded post-tensioning, after covering general aspects and tendon fabrication. The report also explains preliminary design and the execution of calculations using an example.\"}]","VSL REPORT SERIES - POST-TENSIONED SLABS - Fundamentals of the design process | PDF",1792821348,111]