| Summary: | 碩士 === 國立成功大學 === 土木工程學系碩博士班 === 90 === Abstract
Construction engineers usually have to properly allocate construction facilities, such as material warehouses, the batch plant, or the job site office, so that the workflows within different working parties are smooth and the high productivity at the job site can be achieved. However, because of the dynamic sequences at the construction site, it is important that the facility layout of the construction site should be coordinated with the project schedule. Previous research related to the dynamic facility layout problem takes subjective weighting approach to determine the closeness between facilities. Such approach usually results in that the layout of the facilities is controlled by the subjective closeness coefficients, which is not practically acceptable. In addition, the solutions generated by the previous research are not flexible for the construction engineers to perform what-if analysis.
This research first analyzed the characteristics of different construction facilities during the construction period in terms of variations in size and location. A new dynamic facility layout model that the closeness between facilities is determined according to the project schedule is then developed. Furthermore, an elite non-dominate genetic algorithm (ENDGA) based on Pareto front is developed to solve the newly established model. Results showed that with the objectively determining the closeness of facilities, the facility layout is more practically acceptable at the construction site. The solutions generated by using ENDGA also provide the more flexible facility layout. A user-friendly program coded with Microsoft Visual Basic 6, is built to provide a practical tool for the construction engineers to easy the facility layout planning process.
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