Optimizing Material Hoisting Operations and Storage Cells in Single Multi-storey Tower Block Construction by Genetic Algorithm

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)53 - 64
Journal / PublicationInternational Journal of Construction Management
Volume8
Issue number2
Publication statusPublished - 2008

Abstract

AbstractDuring construction, materials have to be stored properly and transported within a site area or evendifferent storeys in a high-rise structure. The total costs for storage and transportation are prime concerns.Optimizing material storage locations so as to pay the least transportation costs induced during the projectperiod is a typical construction management problem. In this paper, a genetic algorithm (GA) approach tooptimize the vertical hoisting and storage layout for a high-rise multi-storey tower building in confinedsites is studied. Costs include the storage and distribution costs which are calculated in terms of verticaltransportation, horizontal movements and then vertical distribution expenses. The sum of these costs isset as the objective function for optimization. Since it is a typical multiple-level warehouse layout anddistribution problem, which is NP-hard in nature, an effective assignment system with GA approach isapplied. An example of 10 types of materials to be stored and distributed in a 30-storey building is used asa numerical example to illustrate the model development. The results also demonstrate the effectivenessof applying the GA in minimizing the total transportation costs that verify the practical application ofthe proposed approach.

Citation Format(s)

Optimizing Material Hoisting Operations and Storage Cells in Single Multi-storey Tower Block Construction by Genetic Algorithm. / FUNG, Ivan Wing Hong; Wong, C. K.; Tam, C. M. et al.
In: International Journal of Construction Management, Vol. 8, No. 2, 2008, p. 53 - 64.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review