栓钉属于一种高强度刚度连接的紧固件，用于各种钢结构工程中，在不同连接件中起刚性组合连接作用。用焊接方法把他固定连接在一个零件(或构件)上面，以便再与其他零件进行连接.栓钉的规格为公称直径10～Ф25mm，焊接前总长度40～300mm。

    Bolts are fasteners with high strength stiffness connections for rigid combination connections in various steel structures. He is attached to a part (or component) by welding so that it can be connected with other parts. The specifications of the stud are nominal diameter 10 ~ Ф25mm, the total length of 40 ~ 300mm before welding.

    在钢结构中，不管是现浇楼板、普通压型钢板还是钢筋桁架模板，栓钉是必须设置的。由于钢筋桁架模板两端有支座竖向钢筋和钢梁点焊固定，所以栓钉可采用非穿透焊，而普通的压型钢板在钢梁上的固定需通过栓钉，故必须采用穿透焊。穿透焊将影响到压型钢板的使用性能及栓钉的焊接质量。

    In the steel structure, whether it is cast-in-place floor, ordinary pressure plate or steel truss template, pegs must be set. As the steel bar truss at both ends of the bearing at both ends of the vertical reinforcement and steel beam spot welding fixed, so the tap can be used non-penetrating welding, and ordinary pressure plate in the steel beam on the need to fix the bolt, it must be used to wear Through welding. Penetrating welding will affect the performance of the press plate and the quality of the pegs.

     组合楼板下部为钢梁，上部为混凝土板，两者共同工作。但是在两者的结合面上，也就是混凝土板底和钢梁顶面之间，需要保证其有效传递剪力，以免两者之间相对滑移。这单靠混凝土和钢梁之间的粘结力是远远不够的，所以要在钢梁顶设置栓钉，与钢梁焊接，并埋入混凝土中，这样就能够有效地传递剪力了。

The lower part of the composite floor is steel beam, the upper part of the concrete slab, the two work together. But in the combination of the two, that is, between the concrete floor and the top of the steel beam, you need to ensure that the effective transfer of shear, so as to avoid the relative slip between the two. The adhesion between the concrete and the steel beam is far from enough, so it is necessary to set the pegs on the top of the steel beam and weld with the steel beam and embed it in the concrete so that the shear force can be effectively transmitted.