doi:10.3850/978-981-08-7920-4_S1-CP11-cd

ABSTRACT

Time and cost estimations during the preconstruction planning process are of high importance for a reliable prediction of the financial conditions of a construction project. These time and cost estimations are based so far on partially inaccurate correlations in terms of the interactions among formwork related teams. Elementary processes which are interacting with other elementary processes may produce waiting times which cannot be considered in the general performance factors commonly used for the time estimations. The new approach performs a modified CYCLONE-analysis so that the geometrical properties of the construction site as well as the working group properties can be considered in order to assess the waiting time quota. This analysis fits into the formwork-selection-model newly developed by the ETH Zurich in cooperation with Swiss industrial partners. Through the use of the formwork-selection-model expanded with the modified CYCLONE-analysis construction companies can now identify the optimal formwork system in order to minimize their project specific operation costs.

Keywords: Formwork related teams, Modified CYCLONE-model, Process oriented, Process duration, Formwork selection.

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