[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-650535-105":59,"doc-detail-650535-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","precast-pictorial-guide-2014","PRECAST PICTORIAL GUIDE - 2014","","Pictorial guidance from the Housing & Development Board (HDB) explains how to approach precast concrete planning, component categorisation, and construction details. It provides a structured table of contents covering fundamentals, unit and common-area elements, joints and connection details, and typical precast components. The guide includes safety and durability reminders, reinforcement adequacy references, dimensional standards (such as typical floor-to-floor height and connection gaps), and annex material including FAQs, standardisation rationale, and waterproofing system notes.",{"@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/precast-pictorial-guide-2014/650535/",{"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/precast-pictorial-guide-2014/650535.png","ImageObject",300,407,{"name":92,"@type":93},"acoobca","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of the HDB precast pictorial guide (2014)?","Question",{"text":112,"@type":113},"The guide provides reference information for minimum reinforcements and practical rules for using precast concrete components safely and durably, including dimensional standards and connection approach.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How are precast components categorised in this guide?",{"text":117,"@type":113},"Precacr components are categorised into three groups: fully standardisable across all projects, partially standardisable across all projects, and standardisable within individual projects.",{"name":119,"@type":110,"acceptedAnswer":120},"What guidance is given for reinforcements shown in the pictorial guide?",{"text":121,"@type":113},"The reinforcements shown are the minimum reinforcement required and serve only as reference; users must verify adequacy against their own design requirements.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},650535,1792983506,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},3985747870733,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","HOUSING & DEVELOPMENT  \nBOARD  \nPRECAST PICTORIAL GUIDE  \n2014  \n© HOUSING & DEVELOPMENT BOARD 2014. NO PART OF THIS PUBLICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS, OR STORED IN ANY RETRIEVAL SYSTEM OF ANY NATURE, WHETHER ELECTRONIC OR MECHANICAL, INCLUDING PHOTOCOPYING AND RECORDING, WITHOUT THE PRIOR WRITTEN PERMISSION OF HDB.  \nTHESE GUIDES WERE DEVELOPED FOR HDB’S OWN USE ONLY. HDB SHALL IN NO WAY BE LIABLE FOR ANY LOSS (WHETHER DIRECT, INDIRECT OR CONSEQUENTIAL LOSS INCLUDING PURE ECONOMIC LOSS) TO ANY PERSON RELYING ON ANY OF THE CONTENTS, WHETHER WHOLLY OR PARTIALLY, OF THIS PUBLICATION. HDB DOES NOT WARRANT OR REPRESENT THAT THESE GUIDES ARE SUITABLE FOR ANY PURPOSE NORTHAT THEY ARE ACCURATE OR UP-TO-DATE.  \nANY PERSONS WHO REFER TO OR ADOPT, WHETHER WHOLLY OR PARTIALLY, THE CONTENTS OF THIS PUBLICATION SHALL NOT BE RELIEVED OF ANY PROFESSIONAL AND CONTRACTUAL RESPONSIBILITIES. THESE RESPONSIBILITIES INCLUDE BUT ARE NOT LIMITED TO:  \n(I) VERIFYING THE ACCURACY OF THE CONTENTS OF THIS PUBLICATION;  \n(II) CORRECTLY APPLYING THE CONTENTS OF THIS PUBLICATION;  \n(III) OBTAINING ALL RELEVANT PROFESSIONAL ADVICE AND SERVICES; AND  \n(IV) CONSIDERING THE CONTENTS OF THIS PUBLICATION IN CONJUNCTION WITH ALL OTHER RELEVANT REQUIREMENTS, DOCUMENTS OR INFORMATION NECESSARY FOR THE SPECIFIC REQUIREMENTS OF THEIR PROJECT.  \nTABLE OF CONTENTS  \nLIST OF FIGURES  \nCHAPTER 1 TO GET YOU STARTED 1  \nCHAPTER 2 UNIT 5  \nCHAPTER 3 COMMON AREA 12  \nCHAPTER 4 JOINTS & CONNECTION DETAILS 18  \nCHAPTER 5 PRECAST COMPONENTS 24  \nANNEX A FREQUENTLY ASKED QUESTIONS  \nANNEX B STANDARDISATION & PRECAST COMPONENT CATEGORIES  \nANNEX C THE RATIONALE BEHIND 100 REPETITIONS AND HOW TO APPROACH THIS NUMBER  \nANNEX D POINTS TO NOTE WHEN HAVING GROOVELINES ANNEX E ANALYSIS AND EXPLANATION WITH EXAMPLE TO  \nACCOMMODATE STANDARD PRECAST STAIRCASE FLIGHT ANNEX F HDB’S WATERPROOFING SYSTEM  \nList of figures  \nFig 1A Typical floor-to-floor height  \nFig 1B 14mm vertical joint  \nFig 1C 15mm or 20mm horizontal joint  \nFig 2A Typical storey residential floor part plan 1 – with thickness indicated  \nFig 2B Typical storey residential floor part plan 2 – joints and components  \nFig 2C L-shaped façade  \nFig 2D Corner window façade  \nFig 2E Concrete framing for cast-in window frame  \nFig 2F Minimum 100mm overhang canopies  \nFig 2G Types of acceptable and non-acceptable canopies  \nFig 2H Canopy length and profile  \nFig 2I Standard coping detail  \nFig 2J Coping profile for KP at service yard  \nFig 3A Staircase dimensions stipulated in guide drawings  \nFig 3B Protrusion of lift wall to be non-structural  \nFig 3C Dimensions of refuse or recyclable chutes  \nFig 3D No integration of chutes with other components  \nFig 3E Only C-shape, E-shape or F-shape ducts shall be adopted  \nFig 3F Types of segments for water tank design  \nFig 3G Mixing and matching segments to achieve different configurations and  \ncapacities  \nFig 3H Maximum water level and design load for different types of water tanks  \nFig 3I Termination of canopy at edge of column  \nFig 3J Use of different plank types at MSCP  \nFig 4A Open drain at horizontal joint  \nFig 4B Vertical connection details for precast wall  \nFig 4C Vertical connection details between precast wall/column and precast façade  \nFig 4D Vertical connection details for half-height precast façade (K3F / K4F) Fig 4E Horizontal connection details for precast wall and column  \nFig 4F Horizontal connection details for precast façade  \nFig 4G Façade acting as non-structural column clad must be 120mm thick  \nFig 5A Typical details of 2-tier precast column (sectional view)  \nFig 5B Non-structural vertical components shall not protrude out of building line by  \nmore than 600mm  \nFig 5C Pre-fabricated cages for columns and meshes for walls & household shelters  \nFig 5D Use of wet pour to avoid differential cambering  \nFig 5E Precast component shall have no protruding bars  \nFig A1 Kitchen wall component facing both internal and extern","cbCaiu5nf8P1P1et","https://ap.wps.com/l/cbCaiu5nf8P1P1et","pdf",6253545,55,"English","# List of figures\n## Fig 1A Typical floor-to-floor height\n## Fig 4A Open drain at horizontal joint\n# Table of contents\n## Chapter 1 TO GET YOU STARTED\n## Chapter 2 UNIT 5\n## Chapter 3 COMMON AREA 12\n## Chapter 4 JOINTS & CONNECTION DETAILS 18\n## Chapter 5 PRECAST COMPONENTS 24\n## Annex A FREQUENTLY ASKED QUESTIONS\n## Annex B STANDARDISATION & PRECAST COMPONENT CATEGORIES\n## Annex C THE RATIONALE BEHIND 100 REPETITIONS AND HOW TO APPROACH THIS NUMBER\n## Annex D POINTS TO NOTE WHEN HAVING GROOVELINES\n## Annex E ANALYSIS AND EXPLANATION WITH EXAMPLE TO ACCOMMODATE STANDARD PRECAST STAIRCASE FLIGHT\n## Annex F HDB’S WATERPROOFING SYSTEM","[{\"question\":\"What is the purpose of the HDB precast pictorial guide (2014)?\",\"answer\":\"The guide provides reference information for minimum reinforcements and practical rules for using precast concrete components safely and durably, including dimensional standards and connection approach.\"},{\"question\":\"How are precast components categorised in this guide?\",\"answer\":\"Precacr components are categorised into three groups: fully standardisable across all projects, partially standardisable across all projects, and standardisable within individual projects.\"},{\"question\":\"What guidance is given for reinforcements shown in the pictorial guide?\",\"answer\":\"The reinforcements shown are the minimum reinforcement required and serve only as reference; users must verify adequacy against their own design requirements.\"}]","PRECAST PICTORIAL GUIDE - 2014 | PDF",1792831899,139]