Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Exact Solution Computation Model for Time-Cost Tradeoff Analysis

시간-비용 최적관계 분석용 정확해 추정기법

  • 이동은 (경북대학교 건축.토목공학부) ;
  • 곽한성 (경북대학교 건설환경에너지공학부 대학원) ;
  • 이창용 (경북대학교 건설환경에너지공학부 대학원)
  • Received : 2014.11.03
  • Accepted : 2014.12.09
  • Published : 2015.02.28
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Abstract

This paper presents a computational method that computes exact solution for activity overlapping involved in project time-cost tradeoff analysis. The method introduces a concept of rework cost-slope and identifies optimal overlap rate between preceding and succeeding critical activities. The mathematical concepts relative to the exact method are clearly defined and the procedures to formulate the variables are explained in detail. The method identifies the activities and their exact overlapping rates to meet a job site specific needs exactly. It maximizes usability of schedule data obtained from commercial CPM softwares(e.g., P3, SureTrak). Decision makers(i.e., project manager etc.) may make the appropriate decision in accordance with the site-specific conditions involved in the overlapping rates among critical activities. Case studies verify the usability and the validity of the system.

Keywords

Acknowledgement

Supported by : 한국연구재단

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