高层钢结构建筑的楼面一般均为钢-混凝土组合结构;而且大多数是采用压型钢板与钢筋混凝土组成的组合楼层。这种楼层结构由栓钉(又称柱头螺栓)将钢筋混凝土、压型钢板和钢梁组合成整体(图1)。栓钉是组合楼层结构的剪力连接件,在一般情况下楼面上的水平荷载通过它传递到梁柱框架,所以又称为剪力螺栓;它的规格、数量是按楼面与钢梁连接处的剪力大小确定的。栓钉应与钢构件牢固焊接。 The floor of a high-rise steel structure building is generally a steel-concrete composite structure; and most of them are composite floors composed of profiled steel plates and reinforced concrete. This kind of floor structure is composed of reinforced concrete, profiled steel plates and steel beams combined by studs (also called studs) (Figure 1). The stud is the shear connection of the combined floor structure. Under normal circumstances, the horizontal load on the floor passes through it to the beam-column frame, so it is also called the shear bolt; its specification and quantity are according to the floor and the steel beam. The shear strength at the joint is determined. Studs should be firmly welded to the steel components.