Exploration of Productivity Loss Function Due to Interface Interference in Semiconductor Plant Construction
Date Issued
2009
Date
2009
Author(s)
Tsuei, Hung-Ruei
Abstract
Construction of High-tech manufactory plant is quite different from ordinary construction due to its tight schedule, complicate construction interference conflict, and concurrent engineering. Therefore, different trades may interfere with one another while working in the same space, and produce many construction interface conflicts. These construction interface conflicts produce chaos in a construction site, and affect labor productivity directly. Few researchers quantify the relationship of productivity with waiting behavior and crowded space of the different trades, and the severity of the productivity loss. Therefore, the purpose of this research is to explain productivity loss function due to interference in semiconductor plant construction.his thesis focuses on hi-tech semiconductor fab. Through on-site interviews with the construction experts, the waiting behavior and crowded space which are made by construction interface conflicts are quantified. The fuzzy verbal questionnaires were adopted in the interviews according to the construction interface conflicts types, and the interviews were recorded in the form of fuzzy intersection. After applying the fuzzy statistics, the parameter of each fuzzy verbal variable that causes the productivity loss was identified. Then the function of different types of construction interface conflicts of productivity loss was built, and the difference of productivity loss value and the reasons for differences were determined.fter collecting the common construction interface conflicts in hi-tech factory buildings, and quantifying waiting and crowded problems into productivity loss function, in practice, labor productivity loss value was obtained based on the situation of construction site. Then, it is readjusted reasonable productivity. In this way, the most serious construction interface conflict is highlighted, and more attention can be point to avoid the occurrence of the impact of the overall project. Then, it result in a better control of the project management.
Subjects
high-tech fab
construction interface conflicts
fuzzy logic
productivity loss function
Type
thesis
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