Steel structure application field and advantages in construction
Application field of steel structure
1. Heavy plant structure. Generally speaking, the crane lifting weight may be more heavy work workshop will use this steel skeleton, such as the metallurgical plant of the open furnace, converter workshop, mixing furnace workshop, priming workshop; Heavy machinery factory casting workshop, hydraulic press workshop, forging workshop, etc.
2. Large span structure. Long-span structure refers to the vertical load-bearing structure of columns and walls, roof with steel grid, suspension structure or concrete thin shell, membrane structure, such as public buildings such as stadiums and railway stations.
3. Tower and mast structure. It is a structure with a large height and relatively small cross section.
4. multi-storey, high-rise buildings.
5. bearing vibration load affecting the seismic effect of the structure.
6. Removable or movable structure.
It can be said that the use of steel structure is very wide, and steel structure has a decisive effect in the above categories, which has brought great convenience to the production operations of some industries, enterprises and even people's days.
The advantages of steel structure in construction
Steel structure is a structure made of steel as a material. The steel structure housing has been paid attention to by all parties for its comprehensive advantages such as light weight, low foundation cost, suitable for weak foundation, easy installation, fast construction, short cycle, fast investment recovery, less environmental pollution and good seismic performance. Compared with other structures -- brick-concrete structure and concrete structure, steel structure has advantages in the use function, design, construction, and comprehensive economy. The advantages of steel structure application in residential buildings are mainly reflected in the following aspects:
1. can reasonably arrange the functional interval
Using the characteristics of high strength of steel, the design can use large room layout, so that the building plane can be reasonably separated, flexible and convenient, create open housing and traditional structure (brick-concrete structure, concrete structure) due to the material nature limits the freedom of space layout, the past room is generally 3.2 meters, 3.4 meters, 3.6 meters, if too large, it will cause plate thickness, beam height, column large, out The phenomenon of "fat beam and fat column" not only affects the appearance, but also increases the weight and increases the cost, and buyers often change the location of the wall by themselves when decorating the second time, increasing the hidden danger.
2. meet the requirements of housing industrialization and sustainable development
Steel structure suitable for factory mass production, high degree of industrialization, and energy saving, waterproof, heat insulation, doors and Windows and other advanced products in one set of applications, the design, production, construction integration, improve the level of residential industrialization.
3. Low comprehensive cost
Due to the light weight, the basic cost is reduced, the overall material consumption is reduced, the direct cost is reduced, the construction period is short, and the indirect cost can be reduced, so the comprehensive cost is low.
4. Convenient construction and short construction period
Steel structure components, can be implemented in the factory production, on-site installation. Due to the small amount of on-site work, less pollution to the surrounding environment, at the same time, the high degree of construction mechanization, speed up the construction speed. According to statistics, the same area of buildings, steel structure than concrete structure construction period, can be shortened by one-third, and can save the mold material.
5. light weight, good seismic performance
The same building area of the building floor, the steel structure light weight, according to the comparison, the weight of the six-story light steel structure house, only equivalent to the weight of the four-story brick and concrete structure house. Moreover, the steel has ductility, which can better consume the energy brought by the earthquake, so the seismic performance is good and the structural safety is high.
