Steel structures have the following characteristics compared to the structure of other materials:
First, the steel structure is light in weight
Although the bulk density of the steel structure is large, its strength is much higher than that of other building materials. Therefore, when the load and conditions are the same, the steel structure is lighter than other structures, easy to transport and install, and can span more. Big span.
Second, the steel has good plasticity and toughness
The plasticity is good, so that the steel structure is generally not broken and broken by accidental overload or partial overload. Good toughness makes the steel structure more adaptable to dynamic loads. These properties of steel provide a sufficient guarantee for the safety and reliability of the steel structure.
Third, steel is closer to homogeneous and isotropic
The internal structure of the steel is relatively uniform, very close to the homogeneous and isotropic body, and is almost completely elastic within a certain stress range. These performances are in line with the assumptions in the mechanical calculations, so the calculation results of the steel structure are more in line with the actual stress conditions.
Fourth, the steel structure is easy to manufacture, easy to adopt industrial production, and the construction and installation cycle is short.
The steel structure is composed of various profiles and is easy to manufacture. A large number of steel structures are manufactured in specialized metal structure manufacturing plants; high precision. The manufactured components are assembled to the site for assembly, bolted, and light in structure, so the construction is convenient and the construction period is short. In addition, the completed steel structure is also easy to disassemble, reinforce or modify.
Five, the steel structure is well sealed
The steel structure is airtight and watertight.
Sixth, the steel structure has good heat resistance, but the fire performance is poor.
Steel is heat resistant and not resistant to high temperatures. As the temperature increases, the strength decreases. When there is radiant heat around, when the temperature is above 150 degrees, the shielding measures should be taken. In the event of a fire, if the structural temperature reaches 500 degrees or more, it may collapse all at once. In order to improve the fire resistance of the steel structure, it is usually wrapped with concrete or brick.
7. Steel is prone to corrosion and protective measures should be taken.
Steel is prone to rust in humid environments, especially in corrosive media, must be painted or galvanized, and should be regularly maintained during use.
Compared with other structures, steel structures have advantages in terms of function, design, construction, and comprehensive economy. The advantages of applying steel structures in residential buildings are mainly reflected in the following aspects:
1. Steel-structured houses can better meet the requirements of flexible separation between large openings in buildings than traditional buildings, and can improve the area utilization rate by reducing the cross-sectional area of ​​the columns and using lightweight wall panels. The effective indoor use area is improved by about 6. %.
Second, the energy-saving effect is good, the wall uses light energy-saving standardized prefabricated wallboard instead of clay bricks, the insulation performance is good, energy saving is 50%, and each household can save 18 yuan for heating and cooling.
Third, the steel structure system used in residential buildings can give full play to the steel structure with good ductility, strong plastic deformation ability, excellent seismic and wind resistance, and greatly improve the safety and reliability of the house. Especially in the case of earthquakes and typhoon disasters, it is possible to avoid collapse of buildings. For example, in the 1995 Great Hanshin Earthquake in Japan, almost all of the collapsed earthquakes in the 1999 earthquake in 1999 were steel structures made of H-beams.
Fourth, the total weight of the building is light, and the steel structure residential system is light in weight, about half of the concrete structure, which can greatly reduce the basic cost.
5. The construction speed is fast, and the construction period is shortened by at least one third compared with the traditional residential system, thus reducing the overall cost and reducing the overall cost by 5%. Accelerate capital turnover and greatly improve investment efficiency.
Sixth, the environmental protection effect is good. The construction of steel structure houses greatly reduces the amount of sand, stone and ash. The materials used are mainly green, recyclable or degradable materials. When the building is demolished, most of the materials can be regenerated or degraded without causing a lot of garbage.
Seven, has a higher performance price ratio.
Eight, the architectural style is flexible and rich. Large open room design, indoor space can be divided into multiple programs to meet the different needs of users.
9. Meet the requirements of residential industrialization and sustainable development. The steel structure is suitable for mass production in factories, with high degree of industrialization, and can integrate advanced products such as energy saving, waterproofing, heat insulation, doors and windows into one, complete application, integrate design, production and construction, and improve the level of the housing industry.
In summary, the steel structure is a residential structural system suitable for innovation. Buying and selling steel structures of second-hand steel structure plants can design new types of houses with various shapes, scales and spaces according to different aesthetics and functional requirements.
Changshu City, the second-hand herringbone beam network, mainly engaged in the cover of the green, red, glazed iron beam, old roof panels, can also be customized new iron beam, but also for steel structure plant, activity plant, color steel tile, steel structure movable board Housing installation and other services, to undertake various types of steel structure engineering, trading of second-hand steel structure plant. Steel structures can be built in Jiangsu.
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