A Computer Aided System to Improve Dimensional Control of on-site Construction

The increased use of prefabricated components, the complexity of new building shapes, and the speeding up of production in construction, demand an efficient and precise dimensional control. Meanwhile Information and Communication Technology (ICT) increasingly supports construction, among others, CAD systems and Total Stations, are being used for the purpose of dimensional control. In order to improve the dimensional control of on-site construction projects, this research tries to capture the knowledge required to design an adequate dimensional control plan and make that knowledge more generally available, and build a connection between CAD systems and Total Stations by applying state-of art ICT, focusing on prefabricated concrete building structural elements. This paper presents an updated information model that defines the various deviations and represents engineering experience knowledge using UML. The model has been implemented in a Dimensional Control System (DCS) and applied in the “La Tour” construction project in Apeldoorn, the Netherlands.