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Multiobjective Optimization Model for Planning Repetitive Construction Projects
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DOI：10.1061/(ASCE)CO.1943-7862.0002072.png)
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Minimizing the duration of repetitive construction projects such as high-rise buildings and highway construction often requires interrupting the work continuity of construction crews and/or utilizing overtime hours. Available scheduling models for repetitive construction projects can generate optimal trade-offs between minimizing project duration and crew work interruptions; however, they are incapable of minimizing the use of overtime hours. This paper developed a novel multiobjective optimization model for repetitive construction projects that is capable of generating optimal trade-offs among project duration, work interruptions, and overtime use. The model was developed in three main phases (1) a formulation phase that identified all relevant decision variables and formulated the three objective functions of the model; (2) an implementation phase that executed the model computations using multiobjective genetic algorithms; and (3) a performance evaluation phase. The results of this performance evaluation confirmed that the model outperforms existing models in minimizing the use of overtime hours, and generating optimal trade-offs among project duration, crew work interruptions, and overtime use. (C) 2021 American Society of Civil Engineers.
Keyword:
COST OPTIMIZATION
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CPM
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IF:
5.1
论文数:
5.1K
被引数:
1.4W
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