Application characteristics of steel structure bolts

The full name of steel structure bolt is steel structure bolt connection pair, which is not generally called high strength bolt. Steel structure bolts are used to build industrial production and industrial buildings, railway tunnels, roads, bridges, pipelines, highway bridges, tower and bow structures, heating furnace structures, steel structures of heating furnaces, long-span workshops, high-rise residential industrial buildings, various tower bodies, light-weight steel structures, lifting equipment and other steel structures connecting housing buildings.

Each coupling pair consists of one anchor bolt, one nut and two sealing rings. According to the installation characteristics, the steel structure bolts are divided into large hexagon head bolts and torsion shear anchor bolts. The product cost of the shear type anchor bolt connector with compressive strength is higher than that of the hexagon bolt. When assembling the connection pairs of high tenacity twist shear type screws, the side of the nut containing round table should deal with the fillet of the sealing ring; the high toughness torsional shear bolt connection pair for steel frame structure is an improved version of large and medium-sized hexagon bolt connection pair used for steel frame structure, and its key advantage is that its structure is simpler than that of hexagonal bolt. Because the indoor space of engineering construction is not large, the electric wrench can be safely applied to immediately turn off the ring head at the end. The actual operation is simple and convenient, and it is very convenient to check the construction quality. It does not require technical staff or machinery. The construction quality can be ensured only if the red plum flower head has been tightened according to the inspection.

Each pair of torsional shear bolt connection pair GB / t3632 includes one anchor bolt, one nut and one sealing ring. When installing the large hexagon head steel structure bolt connection, the side with fillet under the anchor bolt head seal ring should deal with the anchor bolt head; when installing the large hexagon head high-strength bolt, the torque wrench must be used, which must have a large actual operation room space, and should be divided into two parts: original tightening and final tightening. The structure of torsion shear anchor bolt is complicated. Quality inspection must also be torque inspection, which must be technical professional machinery and equipment and quality inspection staff.