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.
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.
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.