Brief Introduction to the Application Characteristics of Steel Structural Bolts
Brief Introduction to the Application Characteristics of Steel Structural Bolts
The full name of steel structural bolts is the steel structural bolt connection pair, which is generally not referred to as high-strength bolts. Steel structural bolts are crucial for building industrial production and industrial buildings, railway tunnels, road and highway bridges, pipeline and highway bridges, tower and bow structures, heating furnace structures, heating furnace steel frame structures, large span factories, high-rise residential industrial buildings, various tower bodies, light steel structures, lifting equipment, and other steel frame structures that connect building structures.
Each connection pair includes an anchor bolt, a nut, and 2 sealing rings. According to the installation characteristics, steel structural bolts are divided into large hexagonal head bolts and torsional shear type foundation bolts. The product cost of compression strength torsional shear type anchor bolt connectors is higher than that of hexagonal bolts. When assembling high toughness torsional shear type screws for connection, the side of the nut containing a circular table should be chamfered with the sealing ring; The high toughness torsion shear bolt connection pair used in steel frame structures is an improved version of the large and medium-sized hexagonal bolt connection pair used in steel frame structures. Its key advantage is that its structure is simpler than hexagonal bolts. Due to the limited indoor space required for engineering construction, it is safe to use an electric wrench to immediately open the circular head at the tail end. The actual operation is simple and convenient, and the inspection of construction quality is very convenient. It does not require technical professionals or machine equipment. Only by observing and inspecting to confirm that the red plum blossom head has been tightened can construction quality be ensured.
Each pair of twisted shear bolt connections to GB/t3632 includes an anchor bolt, a nut, and a sealing ring. When installing the connection of large hexagonal steel structural bolts, the side directly below the sealing ring of the anchor bolt head that contains a chamfer should be aligned with the anchor bolt head; When using large hexagonal high-strength bolts with large structures, a torque wrench must be used. This torque wrench must have a large indoor space for actual operation and must be divided into two parts: original tightening and final tightening. The construction of torsion shear type anchor bolts is relatively complex. Quality inspection also requires torque inspection, which requires technical and professional machinery and equipment as well as quality inspection personnel.
