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Factory fabrication can improve precision and reduce material loss, but may constrain rapid communication with site managers, potentially causing delays and cost overruns. Comparing in-factory and on-site merits and drawbacks motivates developing a selection guideline using key decision-making factors. This study determines the criticality of those factors and supports comparative analysis of both approaches.",{"@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/an-analysis-of-decision-making-factors-in-rebar-fabrication-method-selection/648703/",{"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/an-analysis-of-decision-making-factors-in-rebar-fabrication-method-selection/648703.png","ImageObject",300,407,{"name":92,"@type":93},"Franzy","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-26","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":8},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why is factory rebar fabrication considered more suitable in many projects?","Question",{"text":112,"@type":113},"Factory fabrication provides higher precision due to automated cutting and bending and can reduce relative rebar material loss compared with less automated alternatives.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What disadvantages can occur with in-factory rebar fabrication?",{"text":117,"@type":113},"It may suffer from limited prompt communication with site managers, which can hinder quick responses to contingencies, leading to schedule delays and cost overruns.",{"name":119,"@type":110,"acceptedAnswer":120},"How does the research evaluate selection of fabrication method?",{"text":121,"@type":113},"It analyzes process differences between on-site and in-factory approaches, derives decision-making factors, then applies survey-based pairwise comparison using the AHP technique to establish the criticality and weights of the factors.","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},648703,1792984981,{"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":8,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":52,"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":143,"read_time":144},2336478945519,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","INTERNATIONAL CONFERENCE ON MULTI-NATIONAL CONSTRUCTION PROJECTS“Securing high Performance through Cultural awareness and Dispute Avoidance”  \nSHANGHAI, CHINA  \nNovember 21-23, 2008  \nAn Analysis of Decision-Making Factors in Rebar Fabrication Method  \nSelection  \nKim, Do-hyung1 and Lee, Jun-bok2  \n1. Graduate Student, Kyunghee University, Suwon, Korea([eyenee@lycos.co.kr](eyenee@lycos.co.kr))  \n2. Professor, Kyunghee University, Suwon, Korea([leejb@khu.ac.kr](leejb@khu.ac.kr))  \nABSTRACT  \nAs construction projects require increasingly more various designs rather than standard ones, re-bar work requires more complex and diverse processing configurations. Accordingly, it is necessary to adopt more of rebar fabrication in factory where rebars are cut and bent by automated machines before they are moved to construction site. Rebar fabrication in factory offers such advantages as higher precision level in fabrication and reduction of rebar material loss in relative terms. However, its downside involves constraints in prompt communication with site manager, which may hamper prompt response to contingency, resulting in schedule delay and cost overrun. Rebar fabrication in factory or on site has clearly distinctive meritsand demerits and it is necessary to develop a selection guideline to enable site managers to select a rebar fabrication approach most optimum to their site needs in rebar fabrication planning stage. Therefore, this research aims to determine criticality of major decision-making factors that affect selection of rebar fabrication method and provide underlying inputs for comparative analysis of \"on-site\" rebar fabrication versus \"in-factory\" rebar fabrication.  \nKeywords: Analysis of Hierarchical Process (AHP) , Decision-making factors, In-factory rebar fabrication, Pairwise comparison, Rebar fabrication  \n1. INSTRUCTIONS  \n1.1 Background & Purpose  \nStructural work in a construction project involves formwork, rebar work and concrete work in broad terms and rebar work affects structural safety and durability significantly. Furthermore, although it accounts for less quantity than concrete, rebar is very significant in terms of cost (Salim , 1995) , accounting for about 30% of total reinforced concrete work costs (Cho, HoonHee, 1996) .  \nRebar work consists of 3 phases including preparation of rebar fabrication/assembly drawing (shop drawing) 1 , rebar fabrication and rebar assembly, preparation of rebar fabrication/assembly drawing and rebar fabrication are precursors to rebar assembly and  \n1 Rebar fabrication/assembly drawing(shop drawing) : a drawing describing rebar layout customized to a given structure from standard layout defined by standard specification of each construction contractor  \naccuracy in fabrication affects productivity and precision in rebar assembly, which ultimately impacts schedule and cost of structural work.  \nOn-site rebar fabrication involves installation of rebar fabrication shop on site and is the most preferred approach in Korea, as site managers are quite familiar with such approach and it also ensures prompt response to fabrication error which is unavoidable in rebar fabrication. However, on-site rebar fabrication approach depends largely on rebar worker's experience for quantity estimation in relation to shop drawing preparation and is open to frequent errors in rebar shaping because of dependence on manual shop drawing preparation, which leads to excessive rebar waste and administrative overhead.  \nOn the other hand, in-factory rebar fabrication approach ensures that rebars are cut and bent by automated machines in factory and moved to construction site. Such approach usually ensures high quality of fabricated rebar and better precision in shop drawing preparation due to use of SW program, reducing construction schedule and site labor requirements by requiring less amount of site work. However, blind implementation of in-factory fabrication approach without due consideration of compatib","cbCaiuYPP42DCc29","https://ap.wps.com/l/cbCaiuYPP42DCc29","pdf",214132,"English","# Instructions\n## Background & Purpose\n## Research Scope & Method\n# Analyzing recent preceding studies","[{\"question\":\"Why is factory rebar fabrication considered more suitable in many projects?\",\"answer\":\"Factory fabrication provides higher precision due to automated cutting and bending and can reduce relative rebar material loss compared with less automated alternatives.\"},{\"question\":\"What disadvantages can occur with in-factory rebar fabrication?\",\"answer\":\"It may suffer from limited prompt communication with site managers, which can hinder quick responses to contingencies, leading to schedule delays and cost overruns.\"},{\"question\":\"How does the research evaluate selection of fabrication method?\",\"answer\":\"It analyzes process differences between on-site and in-factory approaches, derives decision-making factors, then applies survey-based pairwise comparison using the AHP technique to establish the criticality and weights of the factors.\"}]","An Analysis of Decision-Making Factors in Rebar Fabrication Method Selection | PDF",1792794730,25]