Introduction to the advantages of steel structure
Compared with the structure of other materials, the steel structure has the following characteristics: 1. The weight of the steel structure is light. Although the bulk density of the steel structure is relatively large, its strength is much higher than that of other building materials, so when the load and conditions it bears At the same time, steel structures are lighter than other structures, are easier to transport and install, and can span larger spans. 2. The plasticity and toughness of the steel are good. The plasticity is good, so that the steel structure will not be suddenly broken due to accidental overloading or local overloading. 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. 3. Steel is closer to homogeneous and isotropic body The internal structure of steel is relatively uniform, very close to homogeneous and isotropic body, and is almost completely elastic within a certain stress range. These properties are in line with the assumptions in the mechanical calculation, so the calculation results of the steel structure are more in line with the actual stress situation. 4. The steel structure is simple to manufacture, easy to use in industrial production, and has a short construction and installation period. 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 fabrication plants; with high precision. The fabricated components are transported to the site for assembly, and are connected by bolts. The structure is light, so the construction is convenient and the construction period is short. In addition, the completed steel structure can be easily dismantled, strengthened or retrofitted. 5. Good sealing of steel structure The air tightness and water tightness of steel structure are good. 6. The heat resistance of the steel structure is good, but the fire resistance is poor. The steel is heat-resistant but not resistant to high temperature. As the temperature increases, the strength decreases. When there is radiant heat around and the temperature is above 150 degrees, shielding measures should be taken. In the event of a fire, when the temperature of the structure reaches 500 degrees or more, it may all collapse instantaneously. In order to improve the fire resistance of the steel structure, it is usually wrapped with concrete or bricks. 7. Steel is easy to corrode, and protective measures should be taken. Steel is easy to corrode in a humid environment, especially in an environment with corrosive media. It must be painted or galvanized, and it should be regularly maintained during use. Compared with other structures, steel structure has advantages in use function, design, construction, and comprehensive economy. The advantages of using steel structure in residential buildings are mainly reflected in the following aspects: 1. Steel structure residential buildings can be better than traditional buildings. It can better meet the requirements of flexible separation of large bays in buildings, and can improve the area utilization rate by reducing the cross-sectional area of columns and using lightweight wall panels, and the effective indoor use area is increased by about 6%. 2. The energy-saving effect is good. The wall adopts light-weight energy-saving standardized prefabricated wall panels instead of clay bricks, which has good thermal insulation performance and saves energy by 50%. Each household can save 18 yuan per square meter of heating and cooling costs. 3. The use of steel structure system in residential buildings can give full play to the good ductility, strong plastic deformation ability of steel structure, and excellent seismic and wind resistance performance, which greatly improves the safety and reliability of residential buildings. Especially in the event of an earthquake or a typhoon disaster, the collapse of buildings can be avoided. For example, in the Great Hanshin Earthquake in 1995 and the Great Taiwan Earthquake in 1999, almost all the steel structure buildings that did not collapse were made of H-beam. 4. The total weight of the building is light, and the steel structure residential system is light in weight, which is about half of the concrete structure, which can greatly reduce the basic cost. 5. The construction speed is fast, and the construction period is at least one third shorter than that of the traditional residential system, so the comprehensive cost can be reduced by 5%^. Accelerate capital turnover and greatly improve investment efficiency. 6. The environmental protection effect is good. The amount of sand, stone and ash is greatly reduced during the construction of the steel structure house. The materials used are mainly green, recyclable or degradable materials. When the building is demolished, most of the materials can be regenerated or degraded. Doesn't make a lot of garbage. 7. Has a high cost performance. 8. The architectural style is flexible and solid. Large bay design, indoor space can be divided into multiple schemes to meet the different needs of users. 9. It meets the requirements of housing industrialization and sustainable development. The steel structure is suitable for mass production in factories, with a 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 residential industry. To sum up, the steel structure is a suitable and innovative residential structural system. The steel structure can be used to design new room types of various shapes, scales and spaces according to people's different aesthetics and functional requirements. The manufacturer can complete it with high precision, high quality and high speed, so that the building can achieve both beautiful and economical effects.