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Optimal Life-Cycle Cost Design of Steel Box Girders  

Shin Yung-Seok (아주대학교 환경건설교통공학과)
Park Jang-Ho (아주대학교 환경건설교통공학과)
Lee Hyun-Sub (아주대학교 환경건설교통공학과)
Ahn Ye-Jun (아주대학교 환경건설교통공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.18, no.4, 2005 , pp. 445-452 More about this Journal
Abstract
This paper presents a design method to minimize Life Cycle Cost (LCC) of steel box girders. The LCC considered in this paper includes initial cost, expected life-cycle maintenance cost and repair cost. A load carrying capacity curve is derived from a condition grade curve of steel girders and load tarrying capacity that is measured in safety diagnostic test. And then, optimal design of steel box girders is performed on the basis of load carrying capacity curve. In this paper time and number of times for repair of steel girders are determined based on the calculated load carrying capacity curve. Also, annual costs considering real discount rate are compared and analyzed in various cases. It is concluded that the optimal design of steel box gilders considering LCC by the presented method will lead to more economical and safer girders than conventional design.
Keywords
Life Cycle Cost; condition grade curve; load carrying capacity curve; steel box girder; optimal design; real discount rate;
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1 조효남, 민대홍, 권우성, 정기영 (2001) 강상자형교의 생애주기비용 최적설계, 한국전산구조공학회 학술발표회 논문집, 14(2), pp.128-136
2 한국도로교통협회(2005) 도로교설계기준
3 Andre K.P., Sandborn J.B. (2004) Minimization of Life Cycle Costs Through Optimization of the Validation Program, Proceedings Reliability and Maintai nabiliity Symposium
4 Boiidar Yanev (2000) Maturing Management for Aging Bridges, New York City, Structural Engineering For Meeting Urban Transportation Challenges
5 Raphael T. Hafta. Zafer Gurdal (1992) Elements of Structural Optimization, KLUWER ACADEMIC PUBLISHERS
6 안장원, 김용수, 권석현 (2001) 도로포장형식에 따른 LCC분석 및 비교에 관한 연구, 대한토목학회논문집, 21(5), pp.673-681
7 한국건설기술연구원(1999) '98 교량관리체계(BMS) 개선에 관한 연구
8 David G.W. (1997) Life Cycle Costing-Theory, Information Acquisition and Application, International Journal of Project Management, 15(6), pp. 335-344   DOI   ScienceOn
9 Hugh Hawk(2003) Bridge Life-Cycle Cost Analysis , NCHRP REPORT 483, Transportation Research Board
10 시설안전기술공단 (2000) 도로교의 공용수명 연장방안 연구, BR-2000-R1-37
11 고현무, 김용길, 김동석, 함대기 (2001) 지진으로 인한 손상평가를 통한 교량구조물의 생애주기비용 최소화, 대한토목학회학술발표회 논문집, pp.1-4
12 Sarma K.C., Adeli H. (2002) Life-Cycle Cost Optimization of Steel Structures, International Journal for Numerical Methods in Engineering