LCA 기반 PSC 교량의 환경부하 특성분석에 대한 연구open access
- Authors
- 조남호; 윤원건; 이완렬; 김경주
- Issue Date
- 2016
- Publisher
- 대한토목학회
- Keywords
- LCA (Life Cycle Assessment); LCI (Life Cycle Inventory); Environmental load; PSC beam bridge; BOQ (Bill of Quantity); 전과정 평가; 목록분석; 환경부하량; PSC beam 교; 수량산출
- Citation
- 대한토목학회논문집(국문), v.36, no.2, pp 297 - 305
- Pages
- 9
- Journal Title
- 대한토목학회논문집(국문)
- Volume
- 36
- Number
- 2
- Start Page
- 297
- End Page
- 305
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/8315
- DOI
- 10.12652/Ksce.2016.36.2.0297
- ISSN
- 1015-6348
- Abstract
- 2015년부터 한국에서 시행된 “탄소배출권 거래제”로 인해 각 분야에서 환경문제에 대응하고자 하는 움직임이 커지고 있다. 특히 환경부하량의정확한 산출이 어려운 건설 분야에서는 ISO 14040 Series의 LCA (Life Cycle Assessment)를 적용하여 환경부하량을 산출하고자 하는 움직임이 지속되고 있다. 본 연구에서는 PSC beam 교량의 시공중 발생하는 환경부하량을 전과정 평가(Life Cycle Assessment, LCA) 방법론을기반으로 분석하였다. 총 34개의 교량을 대상으로 분석한 결과, 건설 자재별 환경부하량은 레미콘(53.3%), 선재(9.6%), 철근(7.8%), 시멘트(6.8%) 합판(5.5%), 에너지(5.2%) 순으로 도출되었으며, 환경 범주별 환경부하량은 지구온난화(45.5%), 자원고갈(30.4%), 인체독성(10.5%),광화학산화물생성(8.9%) 순으로 도출되었다. 향후 LCA를 기획 및 설계 단계에서 도입한다면, 환경부하를 고려한 의사결정을 수행할 수 있을것으로 기대된다.
This study aims to analyze characteristics of environmental load for the construction phase of PSC beam bridge based on Life Cycle Assessment. For detail computation of environmental load, the construction materials and energy consumption are derived from the BOQ, also connecting with environmental load by Korea LCI Database Information Network. The characteristic of environmental impact was analyzed by 25 cases and cut-off ratio was 80% to 94%. The result sorted by construction materials revealed that environmental load were 53.3% for ready-mixed concrete, 9.6% for wire rod, 7.8% for rebar, 6.8% for cement, 5.5% for plywood, and 5.2% for energy. Furthermore, the result of environmental impact revealed that 45.5% for global warming, 30.4% for abiotic resources depletion, 10.5% for human toxicity, and 8.9% for photochemical oxidant creation. In the future, we can make a decision considering environmental load based on LCA at design phase.
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