Experimental and analytical study of the composite action between Hollowcore precast panels, and standard hot rolled steel beam sections

由拉法基预制埃德蒙顿生产的预制空心芯板的地板结构形成了常用的刚性地板系统。构件之间的连续性由弯曲的钢筋和剪切螺柱保证。一旦所有这些元素都安装好，在钢筋混凝土面板之间和整个地板上浇筑结构混凝土浇头。工程师目前认为楼板系统是刚性隔膜。然而，刚性隔膜和钢梁之间的复合作用的程度是未知的。因此，在目前的钢结构设计程序中，它的潜在效益没有被考虑在内。设计工程师根本不考虑空心和标准热轧梁截面之间的任何复合作用。该项目将允许Lafarge Precast Edmonton和Niche Development corp.获得所需参数的准确值，最终计算空心芯板和钢梁之间的复合作用，从而设计弯曲强度和挠度方程。

Floor construction with precast Hollowcore panels produced by Lafarge Precast Edmonton results in a commonly used rigid floor system. Continuity between the elements is ensured by bent rebars and shear studs. Once all these elements are installed, a structural concrete topping is poured between the reinforced concrete panels and over the entire floor. Engineers currently consider the floor system as a rigid diaphragm. However, the extent of composite action between the rigid diaphragm and the steel beams is not known. Therefore its potential benefit is not taken into account in the current design procedures for the steel structure. Design engineers simply do not consider any composite action between the Hollowcore and the standard hot rolled beam section. The project will allow Lafarge Precast Edmonton and Niche Development corp. to obtain accurate values of parameters needed to eventually calculate the composite action between Hollowcore panels and the steel beams, leading to design equations for bending strength and deflections.