The strength of the steel structure engineering structure compared with the general concrete structure
- The steel structure engineering structure is a steel concrete column+steel beam structure. Because the strength of the steel structure is significantly higher than the concrete strength, the cross -section of the structural column and the beam greatly reduces the amount of concrete and reinforcement.
- The steel column improves the bearing talent of the structure column, and reduces the thickness of the steel plate of the column. It also improved the stiffness of the column and the corresponding structural side -oriented stiffness, and it is conducive to the fire prevention talent of the pillar.
- The strength of the steel structure engineering is significantly higher than the concrete, and it is easier to obtain large space and improve the use of indoor space. In the previous room, there was a slightly large concrete pillar with large sections, which affected beautiful and use. The steel structure is smaller than the main component of the steel concrete structure, and the use area can be expanded by 5%-10%.
- Steel structure engineering construction speed is fast. Comprehensive consideration of the manufacturing cycle, device cycle, material fee, management fee and other elements, the cost has economic advantages on long -term projects.
- Steel structures are large -scale production and high processing accuracy, which is conducive to on -site construction accuracy control. Its error control is controlled by “millimeter”; but the construction accuracy of the concrete is controlled by “cm”.
The defects of steel structure engineering structure and general concrete structure
- The fire resistance function is poor when the steel structure occurs.
- Anti -corrosion and rust treatment during construction.
- Deformation is larger than the concrete structure, but the multi -layer structure is not significant.
Composition
- Steel structure
Steel structure is a spatial structure composed of steel as the raw material, and is one of the main structure types of modern buildings. The steel structure is mainly composed of steel beams, steel columns, steel truss and other components made of raw materials. Welding, bolts or rivets are usually connected between components or components. Because of its lightness and fast construction, it is widely used in large -scale factories, stadiums, farmers’ markets, and warehousing warehouses, but its fire resistance is poor.
- concrete
The concrete structure is a building structure based on concrete. Including plain concrete structures, reinforced concrete structures, and prestressed concrete structures. The advantages of concrete structures are specifically reflected in the following aspects: good overallness, can be built into a whole, can be built into a structure of various shapes and sizes, good durability and fire resistance, and low engineering cost and maintenance costs.
