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http://dx.doi.org/10.12652/Ksce.2011.31.4A.269

Life Cycle Assessment of Steel Box Girder Bridge  

Kim, Sang-Hyo (연세대학교 사회환경시스템공학부)
Choi, Moon-Seock (연세대학교 사회환경시스템공학부)
Cho, Kwang-Il (포항산업과학연구원 강구조연구소)
Yoon, Ji-Hyun (연세대학교 사회환경시스템공학부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.4A, 2011 , pp. 269-278 More about this Journal
Abstract
Recently, methods on minimizing environmental effect caused from human-made goods have been studied in various research fields. Such issue has been also spotlighted into the civil engineering field; however, application of environmental performance assessment on civil structures is very complicated, since they handles vast ranges of materials and has comparatively long life span with various construction stages. Thus, this study intended to apply environmental performance assessment into an ordinary type of steel box girder bridge, using most popular Life cycle assessment (LCA) procedures, which are called Survey-based method and Indirect method. For better comparison of two methods, greenhouse effect of the example bridge is considered. As result of analysis, total $CO_2$ emission is evaluated as 241.27 ton with Survey-based method while it is evaluated as 221.03 ton with Indirect method. It is also revealed that most $CO_2$ is generated from the process of manufacturing and producing construction materials. Such result indicates that the efficient design which secures certain level of structural safety with minimized input materials. It is considered that the specific LCA on civil structure performed in this study could be utilized to other civil structures for reasonable environmental performance assessment.
Keywords
environmental performance assessment; life cycle assessment; survey based method; indirect method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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