This paper is the result of a joint research project between the Department of the Environment (NI) Roads Service and the Department of Civil Engineering, Queen's University of Belfast. J. Kirkpatrick, Professor A.E. Long and A. Thompson
Ten simply supported 1.5 m square, under-reinforced, orthogonally prestressed concrete slabs have been tested to failure under centrally applied concentrated loading. Nominal concrete strength was 50 N/mm2. Steel ratio, platen size and average prestress were varied. Concrete strains, steel strains and slab deflections were measured during each test. H.0. Okafor and S.H. Perry