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      THE OPTIMIZATION OF BUILDING DECONSTRUCTION FOR DEPARTMENT OF DEFENSE FACILITIES: FT. MCCLELLAN DECONSTRUCTION PROJECT

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          Abstract

          Deconstruction is the selective dismantling of building structures to recover the maximum amount of primarily reusable and secondarily recyclable materials in a safe and cost-effective manner. Deconstruction is a labor intensive process and can be difficult to achieve in a time-efficient and economical manner for light wood-framed buildings. Deconstruction techniques that balance hand and mechanical labor must be developed to maintain the integrity of materials for reuse and obtain maximum salvage value per unit of cost and time-on-site. This project entailed the removal of three identical WWII-era two-story wood-framed barracks buildings at Ft. McClellan Army Base, Anniston, AL, using hand de-construction, combined mechanical and hand deconstruction techniques, and a traditional demolition method, i.e., mechanical reduction and disposal, in order to determine “optimal” deconstruction techniques based on salvage value per unit of cost. The maximum practical materials salvage from the study buildings using 100% hand deconstruction techniques was 39% of the mass by weight. A combination of hand and mechanical techniques was discovered to have approximately the same economic efficiency as 100% hand deconstruction, measured as a ratio of gross cost per salvage value, with a 44.6% reduction in total labor-hours, and a reduction of only 7% of salvage materials by weight. These findings indicate the potential for greatly increasing wood-framed building deconstruction practice relative to the additional time-on-site and labor that is required, compared to demolition, while optimizing economic benefits. This paper describes the research methods and deconstruction techniques employed, and lessons learned to advance the practice of deconstruction to be more economically competitive and time-efficient.

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          Most cited references 5

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          “Survey on Actual Service Lives for North American Buildings”

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            “Consumption of Materials in the United States, 1900–1995”

             G Matos,  L WAGNER,  G. MATOS (1998)
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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Winter 2006
                : 1
                : 1
                : 102-122
                Author notes

                1.Bradley Guy is the Director of Operations, Hamer Center for Community Design, The Pennsylvania State University. He has a M.S. in Architectural Studies from the University of Florida, and a B. Arch. from the University of Arizona. Mr. Guy has acted as designer or consultant on numerous green building projects with a focus on the US Green Building Council LEED® Green Building Rating System. He has made presentations at national and international conferences of the US Green Building Council, the International Council for Research and Innovation in Building and Construction (CIB), and the United Nations Environment Programme Sustainable Building and Construction Group. Mr. Guy is an Associate of the American Institute of Architects, the President of the Building Materials Reuse Association, and a founding member of the Building Deconstruction Consortium, the Florida Green Building Coalition, and CIB Task Group 39— Deconstruction.

                Article
                jgb.1.1.102
                10.3992/jgb.1.1.102
                ©2006 by College Publishing. All rights reserved.

                Volumes 1-7 of JOGB are open access and do not require permission for use, though proper citation should be given. To view the licenses, visit https://creativecommons.org/licenses/by-nc/4.0/

                Page count
                Pages: 21
                Product
                Categories
                RESEARCH ARTICLES

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