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Analysis And Testing Of Composite Wood-concrete Floor/deck Systems


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R. Gutkowski, J. Balogh, M. Wieligmann, C. Rogers & P. Haller


Analysis and testing of composite woodconcrete floorldeck systems R. ~utkowski', J. ~ a l o ~ h ' , M. wieligmann2, C. ~ o ~ e r s ' , P. ~ a l l e ? 1 Department of Civil Engineering, Colorado State University, USA. 2 Department of Civil Engineering, Technical University of Dresden, Germany. Abstract Experimental and analykal studies of composite wood-concrete floorldeck systems have been ongoing at Colorado State University. A novel shear keylanchor detail of overlaying solid wood floors in office buildings with a concrete layer, thus creating a composite floor, was adapted for this study. The detail utilizes a notch to transfer bearing stress and shear stress in the joined materials for interlayer force transfer, rather than connector shear. Compared to ordinary mechanical connectors, the connection detail develops a substantially higher degree of composite action. Systems are being studied for residences, offices etc. and short span bridges. Laboratory testing included pull-out tests on th