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What are the main contents of steel structure construction technology?
With the development of social economy, the level of urban construction is getting higher and higher, and the technical level of construction industry is also soaring. As a new building structure, steel structure is developing rapidly. From light steel residence to super high-rise building, from passageway canopy to large stadium, from small warehouse to large industrial plant, steel structure is omnipotent and ubiquitous. Due to more and more widely used, steel structure engineering construction technology is gradually becoming mature. So today we will take you to see what the steel structure engineering construction technology contains!
1. High rise steel structure engineering construction technology
According to the building height and design requirements, frame, frame support, tube and mega frame structures are adopted respectively, and the components can be steel, reinforced concrete or concrete filled steel tube. The steel members are light in weight and good in ductility, and can be welded or rolled, which is suitable for super-high building; the steel reinforced concrete members have high rigidity and good fire resistance performance, which is suitable for medium and high-rise buildings; the steel tube concrete construction is simple, which is only used for column structure.
2. Construction technology of space steel structure engineering
The space steel structure has the advantages of light weight, large rigidity, beautiful appearance and fast construction speed. Flat grid with spherical joints, multi-layer grid with variable cross-section and reticulated shell with steel tubes as members are widely used in space steel structures in China. It has the advantages of large space stiffness and low steel consumption, and can provide complete CAD drawings in design, construction and inspection procedures. In addition to grid structure, space structure also has long-span suspension structure, cable membrane structure and so on.
3. Construction technology of light steel structure engineering
Along with the new structure form of light color steel plate wall and roof envelope structure. The light steel structure system is composed of large section thin-walled H-steel wall beam and roof purlin welded or rolled by 5mm steel plate, flexible support system made of round steel and high-strength bolt connection. The column spacing can be from 6m to 9m, the span can be up to 30m or more, the height can be up to more than 10m, and the steel consumption can be 20-30kg / m2. The steel structure of the workshop has the advantages of fast installation speed, light weight, less investment, and the construction is not restricted by seasons. It is suitable for all kinds of light industrial plants.
4. Steel concrete composite structure technology
In recent years, the application scope of steel-concrete composite structure is expanding. The composite structure has the advantages of both steel and concrete. It has high overall strength, good rigidity and good seismic performance. When the concrete structure is used, it has better fire resistance and corrosion resistance. Generally, the steel consumption of composite structural members can be reduced by 15-20%. The composite floor and concrete-filled steel tubular members also have the advantages of less or no formwork support and convenient and rapid construction. It is suitable for frame beams, columns and floors of multi-storey or high-rise buildings with large load, columns and floors of industrial buildings, etc.
5. High strength bolt connection and welding technology
High strength bolt is to transfer stress through friction, which is composed of bolt, nut and washer. High strength bolt connection has the advantages of simple construction, flexible removal, high bearing capacity, good anti fatigue performance, self-locking and high safety. Riveting and partial welding have been replaced in engineering, and it has become the main connection means in steel structure fabrication and installation. The semi-automatic welding technology, gas shielded flux cored wire and self shielded flux cored wire technology should be adopted in the field installation construction.
6. Steel structure engineering protection technology
The protection of steel structure includes fire prevention, anti-corrosion and anti rust. Generally, the anti rust treatment is not necessary after the fire retardant coating treatment, but it is still necessary to carry out anti-corrosion treatment in buildings with corrosive gas. In the construction, the appropriate coating and coating thickness should be selected according to the steel structure type, fire resistance rating and environmental requirements.
Dalian Guangtong Steel Structure Co., Ltd. customizes large-span environmental protection workshop steel structure for customers. The material is Q235B or q355b, the seismic strength can reach grade 7, and the surface is sandblasted. Workshop steel structure can be used as warehouse, stadium, residence, light steel complex house, light steel villa and other construction sites. The installation method is site hoisting assembly and bolt connection installation. The steel structure of Guangtong steel structure workshop has the advantages of large span, high strength, light weight, heat preservation and energy saving, beautiful and durable, short construction time, good heat preservation effect, long service life, space saving and good seismic performance. Performance, flexible layout, etc
Dalian Guangtong Steel Structure Co., Ltd. is a steel structure company in Dalian, China, mainly for steel structure construction industry, production and installation in one. Based on the development and research of high standard new building materials. We firmly believe that good reputation comes from excellent quality and strong strength.
