photo courtesy of nbbj
DESCRIPTION
Exploring the Opportunities for Applying Lean Principles to Electrical Prefabrication . H. W. Chris Lee, Ph.D. Oregon State University July 22, 2013. Photo courtesy of NBBJ. Working Hypotheses. Electrical construction has its own unique barriers to prefabrication - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/1.jpg)
School of Civil and Construction Engineering
Photo courtesy of NBBJ
Exploring the Opportunities for
Applying Lean Principles to Electrical Prefabrication
H. W. Chris Lee, Ph.D.Oregon State University
July 22, 2013
![Page 2: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/2.jpg)
Working Hypotheses
1. Electrical construction has its own unique barriers to prefabrication
2. A project that applies more lean principles provides more opportunities for electrical prefabrication
Photo courtesy of Oregon Electric Group
![Page 3: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/3.jpg)
Project Objectives
Identify barriers
Investigate a list of lean principles
Develop a leanness scoring matrix
Increased Prefabrication in Electrical Construction
• Organizational• Contractual• Technological
1
2
3
![Page 4: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/4.jpg)
Project Tasks
1• Interviews to identify barriers
2• Case studies to identify lean principles
3• Cross-case analysis to develop the leanness scoring matrix
4• Documentation
![Page 5: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/5.jpg)
(Tentative) List of Lean Principles
• Design alignment– Design for Prefabrication– BIM implementation
• Variability management– Lead time/Labor/Quality/Design
• Inter-organizational collaboration– Multi-trade cost and design management
• Alignment of commercial interests– Integrated contracting methods
Photo courtesy of OEG
![Page 6: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/6.jpg)
Project Outcomes – Research Report
What to overcome?
Why to overcome?
How to overcome?
Barriers
Lean Principles
Leanness ScoringMatrix
![Page 7: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/7.jpg)
Research Outcomes:Leanness Scoring Matrix
Category A
Category B
Category C
Category D
Category E
Category F
0
5
Cross-case analysis to identify
improvement opportunities
Photos courtesy of OEG and Skanska
WHY Simple?
WHY Advanced?
![Page 8: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/8.jpg)
Hyun Woo “Chris” Lee, Ph.D.
• CEM faculty at Oregon State University– School matching support of $20,000 for the project
• Head, IPDS (Innovative Project Delivery for Sustainability) Lab– Applying lean construction concepts and methods to
sustainable investments
• 7 years of construction experience– 3 years as estimator for electrical construction of light rail
and trolleybus in California
![Page 9: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/9.jpg)
Strategic Partnership for Research
• NECA Oregon-Columbia Chapter
• NECA San Francisco Chapter
• And more!
![Page 10: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/10.jpg)
School of Civil and Construction Engineering
Thank you! Questions?
H. W. Chris Lee, Ph.D.School of Civil and Construction Eng.
Oregon State [email protected]
541-737-8539
Photo courtesy of NBBJ
![Page 11: Photo courtesy of NBBJ](https://reader031.vdocuments.net/reader031/viewer/2022020717/56816912550346895de02c3c/html5/thumbnails/11.jpg)
(Tentative) List of Barriers
• Organizational– Late decision making– Lack of pre-planning– Inflexibility of construction workflow– Lack of (field personnel) buy-in
• Contractual– Lack of contractors’ involvement– Lack of multi-trade communication
• Technological– Interoperability issues of design software