[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-648713-105":59,"doc-detail-648713-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","guidance-note-401-drawings-and-execution-specification","Guidance Note 4.01 - Drawings and execution specification","","Guidance Note 4.01 explains how contract drawings differ from working and fabrication drawings, and how approval of fabrication drawings should be handled. It describes the roles of the designer/engineer and the steelwork contractor, including responsibilities for defining requirements, ensuring safe construction, and producing details that meet the designer’s specification. It also discusses what execution specification means in BS EN 1090-2, drawing priorities over 3D models, and typical items requiring designer review.",{"@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/guidance-note-401-drawings-and-execution-specification/648713/",{"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/guidance-note-401-drawings-and-execution-specification/648713.png","ImageObject",300,407,{"name":92,"@type":93},"kopisore","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-23",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},"What is the purpose of contract drawings compared with working and fabrication drawings?","Question",{"text":112,"@type":113},"Contract drawings explain how a structure is to be built, while working or fabrication drawings enable fabrication, delivery, and installation. The note highlights that both types form part of the execution specification and support construction responsibilities.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What information must the designer communicate on their drawings?",{"text":117,"@type":113},"The designer needs to communicate completion dimensions, required materials and sizes, construction-sequence assumptions, and information about the structure’s presumed behaviour.",{"name":119,"@type":110,"acceptedAnswer":120},"What kinds of submissions require designer approval for working and fabrication drawings?",{"text":121,"@type":113},"When required by the project specification (e.g., via SHW Appendix 1/4), working and fabrication drawings should be submitted for review on matters that affect the design of permanent works, such as plate thicknesses and weld sizes, and changes that imply different materials or erection schemes.","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},648713,1792794777,{"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":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"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":39},962090880963,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","1   2   3   4   5   6   7   8   4.01   \nGuidance Note 4.01  \nDrawings and execution specification  \nScope  \nThis Guidance Note explains the differences between contract drawings (usually produced by the designer) and working or fabrication drawings. The issue of approval of fabrication drawings is discussed. The definition of ‘execution specification’ given in BS EN 1090-2 [1] is discussed.  \nGeneral  \nDrawings are a necessary part of the documentation needed to explain how a structure is to be built (or, in the case of record drawings, how it has been built) . Indeed, drawings are referred to in the Conditions of Contract and are part of the execution specification. But drawings are needed for more than one purpose and will be made by more than one party to the contract.  \nDesigner’s drawings  \nThe designer (the Engineer, in traditional forms of contract) must specify clearly and unambiguously what is to be built; they are responsible for ensuring that the structure is of adequate strength and stability both during service and during construction. The latter requirement has in the past been subject to some tendency to pass responsibility to the contractor (for example, statements such as “all bracing necessary for erection purposes to be designed by the Contractor”appeared on designer’s drawings) but since the introduction of the CDM Regulations, the designer is now responsible for demonstrating that the structure can be built safely.  \nThe Designer’s / Engineer’s drawings thus form definitive documents describing the structure.  \nProvided that the structure is built in accordance with the drawings, and the associated technical requirements, the responsibility for the design remains with the designer. Furthermore, the work of the constructor is clearly defined.  \nIn summary, the designer needs to communicate the following information:  \n▪ The dimensions required on completion.  \n▪ The materials and sizes needed.  \n▪ Assumptions made by the designer about the construction sequence.  \n▪ Information about the presumed behaviour of the structure (see GN 4.03 on allowance for permanent deformations) .  \nMost of this information is best transmitted in the form of drawings, either in pdf or dwg format. However, 3D models are now commonly shared between the designer and steelwork contractor for visualisation and reference purposes, but the information provided on the 2D drawings will always take precedence.  \nSteelwork contractor’s drawings  \nOn most projects, the main contractor will engage with a steelwork contractor who will be responsible for the fabrication, delivery and installation of the bridge steelwork. The steelwork contractor will be responsible for producing fabrication drawings and details to enable them to carry out their works.  \nThe steelwork contractor needs to determine additional information to ensure the fabricated steelwork meets the designer’s requirements. Typically, dimensions need to be adjusted to allow for weld shrinkage and distortion, and the welding procedures to be used must be selected to minimise these effects. Sometimes temporary attachments need to be added to the steelwork, either to aid with fabrication or for assembly and installation on site, e.g. draw cleats and lifting lugs. Where these attachments may affect the structural integrity of the structure, details will need to be added to the drawings and submitted to the designer for review and acceptance.  \n6   7   8   4.01   \n5  \n4  \n3  \nSteelwork contractor’s 3D model  \nMost steelwork contractors will create a 3D model of the structure to facilitate the fabrication and installation process. This will be produced using the information provided on the designer’s drawings. The main functions of the model will be as follows:  \n▪ To produce an accurate model of the structure in its precambered condition to reflect the designer’s requirements.  \n▪ To generate material lists for material ordering purposes including plates, sections, bolts, shear stud","cbCaiffdYwydJQwH","https://ap.wps.com/l/cbCaiffdYwydJQwH","pdf",395199,"English","# Scope\n# General\n# Designer’s drawings\n# Steelwork contractor’s drawings\n# Steelwork contractor’s 3D model\n# Approval of working and fabrication drawings","[{\"question\":\"What is the purpose of contract drawings compared with working and fabrication drawings?\",\"answer\":\"Contract drawings explain how a structure is to be built, while working or fabrication drawings enable fabrication, delivery, and installation. The note highlights that both types form part of the execution specification and support construction responsibilities.\"},{\"question\":\"What information must the designer communicate on their drawings?\",\"answer\":\"The designer needs to communicate completion dimensions, required materials and sizes, construction-sequence assumptions, and information about the structure’s presumed behaviour.\"},{\"question\":\"What kinds of submissions require designer approval for working and fabrication drawings?\",\"answer\":\"When required by the project specification (e.g., via SHW Appendix 1/4), working and fabrication drawings should be submitted for review on matters that affect the design of permanent works, such as plate thicknesses and weld sizes, and changes that imply different materials or erection schemes.\"}]","Guidance Note 4.01 - Drawings and execution specification | PDF"]