Abstract
The research presents skeletal steel structures analysis method according to BIM-based feasibility study tool proposed by Jaakko Haapio. Also in this paper an optimal joint stiffness determination formulae that was obtained. A multi-storey frame with different joint types was analyzed. The frame was modelled with different beams, columns and joints of different finite stiffness including the optimal one (hypothetically the most cost-effective) calculated by the formula. Five models of the frame were compared basing on cost criterion (joint fabrication and overall material costs) with each other and the one with optimal joint stiffness. The method and formula tested is applicable to frames with any number of spans and storeys.
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