عنوان مقاله [English]
Understanding the mechanism in increasing the width of composite beam tonnages refers to the geometric and physical parameters of the trapezoidal sheet of the steel deck. This theory is based on numerical and experimental studies of countris in Europe and America in 1948. Several parameters of composite steel plates, which are very important in treatment resistance, are height of the congress, bending angle, surface friction conditions, etcetera, that are shown with numerical studies and are aim to improvement of mask steel projects. The results are shown that the analytical numerical steel deck according to bending angle and certain pitch length gives the desire results for loading and span various loading spans In this regard the study on the steel deck according to numerical optimization with MATLAB software causes reduction of dead load structure and increase the width of the tonnage of composite beam with thickness reduction of trapezoid sheet.