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

采用拉法基预制埃德蒙顿公司生产的预制空心板的地板结构导致了常用的刚性地板系统。构件之间的连续性通过弯曲钢筋和剪力钉来确保。一旦安装了所有这些构件，在钢筋混凝土面板之间和整个地板上浇筑结构混凝土顶部。工程师们目前将楼板系统视为刚性横隔膜。然而，刚性横隔板和钢梁之间的复合作用程度尚不清楚。因此，在目前的钢结构设计程序中，没有考虑到它的潜在效益。设计工程师简单地不考虑空芯和标准热轧钢梁截面之间的任何复合作用。 该项目将允许拉法基预制埃德蒙顿和利基发展公司。为了获得最终计算空心板和钢梁之间的组合作用所需的参数的精确值，从而得出抗弯强度和挠度的设计公式。

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.