Abstract
The component site layout for the prefabricated construction subject to constraints such as site constraints, component constraints, construction schedule and component arrival schedule that may change over time and interact has seldom been studied. This study is aimed to solve the dynamic prefabricated component site layout problem (DPCSLP) subject to the above constraints. Based on analyses on the DPCSLP concerning the dynamic and interactive constraints, multi-phase layout, and dynamic allocation of yard locations, a mathematical model for the DPCSLP is proposed. Then the particle swarm optimization (PSO)-based solving algorithm regarding DPCSLP mapping and optimization framework incorporated with multi-phase layout and two-step optimization is developed. A case study is presented to demonstrate and justify the developed method. This study contributes to the domain knowledge for solving the DPCSLP regarding the mathematical model and the PSO-based algorithm as well as reducing project duration of the prefabricated construction by enhancing site coordination.
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