Steel structure, with its light weight and good seismic performance, plays a vital role in modern architecture. Steel not only has excellent shock and impact resistance, its industrial production is also very high, so that components can be quickly and accurately assembled.
The steel used in steel structure mainly includes carbon structural steel, low alloy high strength structural steel, high quality carbon structural steel and alloy structural steel. These materials are widely used in different structures and components according to their properties, such as high-rise buildings, long-span structures, and various specialized structures. When selecting steel structure materials, it is necessary to ensure the bearing capacity of the load-bearing structure and prevent brittle failure under certain conditions.
High-rise and space steel structure technology is suitable for high-rise buildings and long-span space structures, including frames, frame supports, barrels and giant frame structures.
Light steel structure technology is suitable for light industrial plants, using colored steel plate as wall and roof envelope structure, with fast installation and light weight and high strength characteristics.
Steel-concrete composite structure technology combines the advantages of steel and concrete, improves the overall strength, stiffness and seismic performance, and is suitable for multi-story and high-rise buildings.
High-strength bolting and welding technology provides a reliable connection method for steel structures, in which high-strength bolting is easy to construct and disassemble, while welding can provide greater connection stiffness.
The main connection methods of steel structure include weld connection, bolt connection and rivet connection. Each method has its own unique advantages and disadvantages and is suitable for different structural needs and construction conditions. Welding is one of the common methods in steel structure connection, which is divided into manual arc welding, automatic or semi-automatic arc welding and gas shielded welding. Welds come in various forms, including butt welds and fillet welds. Bolt connection is divided into ordinary bolt connection and high strength bolt connection, the latter can be divided into friction type and pressure type two.
