A selection methodology of slab-form construction methods in residential buildings based on the simulation and Delphi techniques

Abstract

Compared to other operations, formwork depends mostly on manual labor and greatly influences the subsequent and overall processes. The form selection criteria for construction projects in South Korea are based however, not on objective and concrete origins, but on the limited experiences of highly practiced planners or engineers. Also, there are no appropriate selection criteria for the data shared by construction companies. Therefore, this paper aims to offer an objective and concrete methodology by which an appropriate formwork operation for structural works can be selected. Toward this end, the aluminum form, sky-deck form, and AFB methods are among the slab form methods widely used in densely populated regions. The Delphi technique was used for the qualitative items of the criteria and the simulation technique for the quantitative items. Also, the AHP technique was applied for finding variable weights of both qualitative and quantitative items in an integrated model. Through the aforementioned procedure, objective selection criteria were derived. Also, by presenting a case study on the selection of an appropriate operation, which includes emerging technologies that completely lack actual data, a practical application of the proposed methodology is proposed.