Off-Site Prefabrication: What Does It Require From the Trade Contractor?
Baris Bekdik1, Daniel Hall2 & Sigmund Aslesen3
1PhD Student, Management Engineering Dept., Technical University of Denmark, Produktionstorvet Bygning 424, 2800 Kongens Lyngby, Denmark, +45 2270 3677, [email protected].2PhD Candidate, Civil and Environmental Eng Dept., Global Projects Center, Stanford University, Y2E2 Bldg, 472 Via Ortega, Suite 242, Stanford, CA 94305-4020, USA, [email protected].
3Development Manager, Veidekke Entreprenør, Department of Strategy & Improvement, PO Box 506 Skøyen, 0214 Oslo, Norway, [email protected].
Abstract
The purpose of the paper is to show what is required to industrialize a building process from the standpoint of the trade contractor. Rationalization of building processes has, over the years, caught the attention of numerous IGLC papers. Although significant contributions have been made to further understand and improve existing construction processes, relatively few contributions have focused on the opportunities for industrialization from the trade contractor’s perspective. This paper uses an in-depth case study to address the deployment strategy for off-site fabrication techniques and processes used for modular plumbing fixture carriers deployed on two large-scale hospital projects in the United States. Findings include the organizational and technological arrangement for prefabrication. The paper applies value stream mapping to visualize the process and improve it. Because this work looks at only one case study, the conclusions are limited in generalizability to other prefabrication operations. However, it represents an important in-depth case from the trade contractors’ perspective and will contribute to the growing body of research focused on industrialization and prefabrication in lean construction. .
Keywords
Lean construction, modularity, prefabrication, standardization, value stream mapping (VSM)
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Reference
Bekdik, B. , Hall, D. & Aslesen, S. 2016. Off-Site Prefabrication: What Does It Require From the Trade Contractor?, 24th Annual Conference of the International Group for Lean Construction , -. doi.org/
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Founded in 1993, the IGLC is an international network of researchers from practice and academia in architecture, engineering, and construction (AEC) who feel that the practice, education, and research of the AEC industry have to be radically renewed in order to respond to the global challenges ahead.
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