1、high-rise steel structure technology.
Frames, frame supports, cylinders and mega frame structures are used according to the height and design requirements of the building. The components can be steel, stiff reinforced concrete or concrete filled steel tube. The steel member has good ductility and can be welded steel or rolled steel. It is suitable for super high-rise buildings. The stiff reinforced concrete members have high rigidity and good fireproof performance. They are suitable for medium and high-rise buildings or bottom structures. Used only for column structures.
2、space steel structure technology.
The space steel structure has light weight, high rigidity, beautiful appearance and fast construction speed. The ball joint plate net frame, multi-layer variable cross-section net frame and net shell with steel pipe as the rod are the structural types with the largest amount of space steel structure in China. It has the advantages of large space rigidity, low steel consumption, design, construction and inspection procedures, and can provide complete CAD. In addition to the grid structure, the space structure still has a large span suspension structure and a cable membrane structure.
3、steel structure technology.
A new structural form consisting of a wall and a roof envelope with a light colored steel plate. Large-section thin-walled H-shaped steel wall beam and roofing rafter welded or rolled by steel plate of 5mm or more, made of flexible support system and high-strength bolted steel structure made of round steel. The column spacing can be from 6m to 9m, and the span can reach 30m or more, the height can reach more than ten meters, and the light crane can be set. The amount of steel used is 20 to 30 kg/m2. Now we have standardized design procedures and specialized production enterprises. The products are of good quality, fast installation speed, light weight, low investment, and construction is not subject to seasonal restrictions. It is suitable for all kinds of light industrial plants.
4、steel concrete composite structure technology.
The beam and column load-bearing structure composed of steel or steel management and concrete members is a steel-mixed composite structure, and its application range has been expanded in recent years. The combined structure has the advantages of both steel and concrete, and has high overall strength, good rigidity and good seismic performance. When using the outer concrete structure, it has better fire resistance and corrosion resistance. The composite structural member can generally reduce the amount of steel used by 15 to 20%. The combination of the floor and the concrete-filled steel tube members also has the advantages of less or no support, and convenient and rapid construction, and has a great promotion potential. Suitable for frame beams, columns and floor coverings, industrial building columns and floor coverings for multi-storey or high-rise buildings with large loads.
5、high strength bolting and welding technology.
High-strength bolts transmit stress through frictional forces and consist of bolts, nuts and washers. The high-strength bolt connection has the advantages of simple construction, flexible removal, high bearing capacity, good fatigue resistance, self-locking property and high safety. The riveting and partial welding have been replaced in the engineering, which has become the main connecting means in the manufacture and installation of steel structures. For steel members made in the workshop, thick plates should be welded by automatic multi-wire arc, and box-shaped column partitions should be welded with electric slag welding. Semi-automatic welding technology and gas-shielded flux-cored wire and self-shielded flux-cored wire technology should be used in on-site installation and construction.
6、steel structure protection technology.
Steel structure protection includes fireproofing, anti-corrosion and anti-rust. Generally, it is not required to be rust-proof after treatment with fire-retardant coatings, but it is still required to be treated in corrosion in buildings with corrosive gases. There are many types of domestic fireproof coatings, such as TN series, MC-10, etc. Among them, MC-10 fireproof coatings include alkyd enamel, chlorinated rubber paint, fluororubber coating and chlorosulfonated coating. Appropriate coatings and coating thicknesses should be selected during construction according to steel structure type, fire rating requirements and environmental requirements.
LINGSHAN STEEL STRUCTURE is a successful manufacturer and supplier in China, operating in the steel structure for many years, to provide you with quality service and competitive prices, we look forward to working with you to become long-term partners.
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