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Application of Fuzzy Logic to Simulation for Construction Operations |
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| Authors: | Hong Zhang C. M. Tam Jonathan Jingsheng Shi |
| Affiliation: | 1Senior Research Associate, Dept. of Building and Construction, City Univ. of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong. 2Associate Professor, Dept. of Building and Construction, City Univ. of Hong Kong, Tat Chee Ave., Kowloon, Hong Kong. 3Associate Professor, Dept. of Civil and Architectural Engineering, Illinois Inst. of Technology, 3201 S. Dearborn St., Chicago, IL 60616. |
| Abstract: | This paper describes the application of fuzzy logic to discrete event simulation in dealing with uncertainties of construction operations. The uncertainties in the quantity of resources required to activate an activity are modeled with fuzzy sets in linguistic terms. The fuzzy logic if-then rule is built to control the activation of activities. The duration of the activity that varies with the quantities of resources involved is determined through the fuzzy logic rule-based model. The fuzzy logic control of activities is incorporated with the activity scanning simulation strategy to implement the fuzzy simulation system for construction operations. In addition, the fuzzy activity element is adopted in the graphical modeling process. Examples are given that illustrate uses of the fuzzy simulation system and the impact of flexible demand of resources on productivity. |
| Keywords: | Fuzzy sets Simulation Uncertainty Construction management |