This paper describes the latest development, application, finite element modelling and testing of a full-scale composite roof panel system which was applied as an alternative to traditional forms of roof construction. The system known as the Profiled Sheeting Steel Dry Board (PSSDB) system consists of profiled steel sheeting connected to dry board using simple mechanical connectors. Compared to traditional roofing systems and materials, the PSSDB roofing system eliminates the roof trusses in buildings. Besides, the proposed system has many advantages such as it is lightweight, requires a shorter construction time, optimises the utilisation of materials and provides greater safety for residence (is theft-proof). A full-scale school classroom module was built and tested. A theoretical model of the roof system based on the finite element method (FEM) was proposed. Comparison of deflections between the FEM and the full-scale real roof system showed a safe underestimation by the FEM of the roof stiffness by about 5.8%.
Key words: Profiled steel sheeting, dry board, composite structure, roofing system.
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