This issue of Steel Construction contains two papers on aspects of composite steel beams. The first paper 'Strength and ductility of headed stud connectors welded in modern profiled steel sheeting' by Stephen Hicks relates to the capacity of shear connections when used with modern trapezoidal steel decking profiles. The paper reports on full scale testing of steel-concrete composite beams and companion push tests. The second paper "Evaluation of footfall vibration in commercial buildings" by Timothy Marks deals with the issue of vibration of steel concrete beams and reports on field testing on three long span systems in actual buildings. In Steel Construction, volume 44, number 1 Sep 2010.
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