[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-665212-105":59,"doc-detail-665212-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","safe-design-and-installation-of-outriggers-or-overhead-supports-for-suspended-scaffolds","Safe Design and Installation of Outriggers or Overhead Supports for Suspended Scaffolds","","Safe Design and Installation of Outriggers or Overhead Supports for Suspended Scaffolds sets out requirements to prevent falls when using suspended scaffolds (“Gondolas”) as temporary work platforms on building façades. It requires professional engineering design complying with Workplace Safety and Health (Scaffolds) Regulations, Singapore Standard 598:2014, and other accepted standards, including strength, load calculations, anchorage design, and site constraints. The document further specifies professional engineer duties for site planning, inspection, issuing Certificate of Inspection (COI), and authorised examiner checks to ensure installation matches the approved PE design.",{"@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":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/safe-design-and-installation-of-outriggers-or-overhead-supports-for-suspended-scaffolds/665212/",{"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/safe-design-and-installation-of-outriggers-or-overhead-supports-for-suspended-scaffolds/665212.png","ImageObject",300,407,{"name":92,"@type":93},"iuabcfuw","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-29",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Who must design outriggers or other overhead supports for suspended scaffolds?","Question",{"text":112,"@type":113},"Outriggers or other overhead supports shall be designed by a Professional Engineer (PE). The design and construction must comply with the Workplace Safety and Health (Scaffolds) Regulations and relevant standards and guidelines.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What should the PE include in the design and calculations?",{"text":117,"@type":113},"The PE design should include detailed drawings of components, connections and terminations, attachment methods, and calculations demonstrating sufficient strength for intended loading. Calculations should clearly indicate the design code, assumptions, permissible stress, and safety factors.",{"name":119,"@type":110,"acceptedAnswer":120},"What are the PE and authorised examiner responsibilities after design?",{"text":121,"@type":113},"The PE must inspect the installed outriggers or overhead supports on site and issue a Certificate of Inspection (COI) confirming compliance with PE design and drawings. The authorised examiner must check that supports have PE COIs and are deployed only at locations designed by the PE, and must not certify scaffolds without PE design.","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},665212,1793293304,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":39,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":46},3985747874027,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","MOM/OSHD/2025-02  \n10 January 2025  \nTo: Approved Scaffold Contractors  \nContractors, Building Owners  \nManagement Corporation Strata Titles  \nProfessional Engineers  \nAuthorised Examiners  \nAll Other Interested Parties  \nSafe Design and Installation of Outriggers or Overhead Supports for Suspended Scaffolds  \nSuspended scaffolds (also known as “Gondolas”) are commonly used as temporary work platforms to carry out work on building façades. To prevent falls from heights, suspended scaffolds must be designed, installed and maintained by competent persons.  \n2 The measures necessary for the safe use of suspended scaffolds include:  \ni) Safe design – a structurally and functionally sound design;  \nii) Proper planning – a plan to execute the installation and use of suspended scaffolds with respect to site conditions; and  \niii) Safe installation.  \nSafe Design  \n3 All outriggers or other overhead supports for suspended scaffolds shall be designed by a Professional Engineer (PE) . The design and construction shall comply with the Workplace Safety and Health (Scaffolds) Regulations and take guidance from:  \ni) Singapore Standard 598: 2014 Code of practice for suspended scaffolds;  \nii) Other applicable standards and codes acceptable by MOM;  \niii) Relevant guidelines issued by MOM or the Workplace Safety and Health Council (WSHC); and  \niv) the Eurocodes for design of structures.  \n4 The PE design shall include drawings detailed drawings of the components, connections and terminations, attachment methods, and calculations showing that the outriggers or other overhead supports for the suspended scaffolds have sufficient strength for the intended loading. Calculations should clearly indicate the design code, assumptions, permissible stress, safety factors etc.  \n5 In addition, the design of the outriggers or other overhead supports shall consider:  \ni) The structure(s) they are installed on is of sufficient strength to withstand any additional loading imposed.  \n• The existing structural drawings (approved and as-built) of the building should be referenced and verified on-site. The verified details must be included in the calculations.  \n• Should information about the existing structure be unavailable or incomplete, a PE shall conduct checks on the existing structure to verify its strength and integrity (such as concrete core tests and/or appropriate non-destructive tests), as part of the suspended scaffold design.  \n• Outriggers or other overhead supports for the suspended scaffolds shall not be designed to be installed on any parapet wall constructed of bricks or other block masonry, any thin wall (wall with 1 layer of reinforcement only) or sloping parapet wall, unless the PE is able to, and has, verified its strength and integrity.  \nii) Sufficient and suitable tie-backs anchored to roof beams or internal columns of the building can be provided.  \n• The anchorage points for the tie-backs shall as far as possible be in line with the outriggers or overhead supports (Fig 1a and 1b), and the tie-backs sufficiently tensioned with turnbuckles or other similar devices.  \n• If the anchorage points for the tie-backs cannot be in line with the outrigger or overhead support, the PE must consider and provide for the additional forces that will be introduced through such arrangements in the design of the outriggers or overhead supports.  \n• Tie-backs shall be anchored independently of the suspended scaffold's suspension or safety rope. The suspension rope and safety rope shall also be anchored independently of each other.  \nFig 1a. Plan view showing outrigger, tie-back and anchorage point in line.  \nSuspension and safety rope not shown.  \nFig 1b. Side section view showing outrigger, tie-back and anchorage point in line.  \nSuspension and safety rope not shown.  \n6 If there are any installations on the roof such as solar panels systems, M&E services or decorative features, the tie-backs of the outriggers or other overhead supports of the suspende","cbCaikGmyNCUrLFN","https://ap.wps.com/l/cbCaikGmyNCUrLFN","pdf",371206,"English","# Safe Design\n## Structural strength, standards, and calculations\n## Tie-backs and anchorage requirements\n## Installations on the roof and stable siting\n# Proper Planning\n## Site-specific layout plan requirements\n## Inspections, COI, and authorised examiner checks","[{\"question\":\"Who must design outriggers or other overhead supports for suspended scaffolds?\",\"answer\":\"Outriggers or other overhead supports shall be designed by a Professional Engineer (PE). The design and construction must comply with the Workplace Safety and Health (Scaffolds) Regulations and relevant standards and guidelines.\"},{\"question\":\"What should the PE include in the design and calculations?\",\"answer\":\"The PE design should include detailed drawings of components, connections and terminations, attachment methods, and calculations demonstrating sufficient strength for intended loading. Calculations should clearly indicate the design code, assumptions, permissible stress, and safety factors.\"},{\"question\":\"What are the PE and authorised examiner responsibilities after design?\",\"answer\":\"The PE must inspect the installed outriggers or overhead supports on site and issue a Certificate of Inspection (COI) confirming compliance with PE design and drawings. The authorised examiner must check that supports have PE COIs and are deployed only at locations designed by the PE, and must not certify scaffolds without PE design.\"}]","Safe Design and Installation of Outriggers or Overhead Supports for Suspended Scaffolds | PDF"]