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The most comprehensive knowledge of steel structures

What is the steel structure, with the scientific research language, the steel structure should be made of stainless steel plate as the main structure, which is now one of the key structural types of building engineering. Stainless steel plate is characterized by high tensile strength, light net weight, good overall rigidity, and strong deformation ability, so it is particularly suitable for the construction of large-span and very tall and super-heavy buildings. Steel structure is made of steel beams, steel columns, steel tube trusses and other components made of steel grains and carbon steel plates. The structure of each component or component is welded by electric welding, anchor screws or rivets in the middle.

Steel structure characteristics

1. stainless steel plate plasticity, good plastic deformation, uniform raw materials, high structural reliability, suitable for destructive driving load, with good building seismic grade characteristics. The internal structure of the stainless steel plate is uniform and tends to a variety of homogenized protoplasm. The specific working characteristics of steel structure are in line with the basic knowledge of calculation. Therefore, the steel structure has high reliability.

2. the raw material tensile strength is high, its net weight is relatively light, the bolt strength is relatively high, the elastic abrasive is also very high. Compared with concrete and wood, the ratio of density and compressive strength is relatively low, so under the same bearing capacity conditions, the steel structure has a small section, and its own weight is light, which is conducive to transportation and installation, suitable for large span, high height, and heavy bearing structure.

3. the steel structure is cost-effective, because the welded structure can ensure complete tightness, can be made of tightness, tightness are particularly good high-pressure vessels, large, small and medium-sized sewage tanks, two types of pressure vessels and so on.

4. steel structure heat resistance is not fire safety, when the temperature is below 150℃, the characteristics of stainless steel plate change not much. Therefore, the steel structure can be used in a thermal production line, but when the surface of the structure is subjected to thermal radiation of about 150 ° C, all aspects of insulation materials should be maintained. The temperature is 300℃ -400℃. Bolt strength and elastic abrasive are significantly reduced, the temperature at 600℃ left, the tensile strength of stainless steel plate tends to zero. In the construction of projects with unique fire safety regulations, the steel structure tries to use fire-resistant insulation materials in all aspects of maintenance to improve the flame retardant level.

5. the corrosion resistance of steel structure is poor, especially in the wet and etched material environment, it is easy to rust. The general steel structure should be rust-proof, hot-dip galvanized or industrial paint, and it should be maintained. For the submarine integrated service platform structure at sea level, it is necessary to adopt special preventive measures such as "zinc block anode protection" to resist corrosion.

6. steel structure production and processing installation automation machinery technology is high, steel structure components are conducive to the production and processing of manufacturers, construction site assembly. The factory's automatic machinery production and processing of finished steel structure components have high precision, high production efficiency, and the construction site assembly speed is quite fast and the construction period is rushed. Steel structure is one of the largest intelligent level of a structure.

steel structure

Main features of steel structure

Wind resistance

The steel structure construction project has relatively light net weight, high tensile strength, good overall rigidity and strong deformation ability. The net weight of the engineering building itself is only one-fifth of the brick-concrete structure, and it can withstand 70 meters of hurricanes per second, so that life and property can be effectively maintained daily.

durability

The flat roof of the low-storey villa is mostly slope roof, so the flat roof structure is mostly managed by a triangular portal steel frame system made of cold-drawn steel components. After the light steel structure components are sealed and gypsum board is collected, a very stable "plate rib structure system management" is formed. This structural system manages a stronger building seismic rating and the ability to resist horizontal loads, and can be used in areas with a building seismic rating of more than 9 degrees.

Heat insulation property

The expected effect of sound insulation is a key index to identify the house. The Windows installed in the management of the light steel structure system are all double-layer insulating glass, and the actual effect of sound insulation is particularly good, and the sound insulation is more than 40 sound bars. The wall is composed of light steel keel partition wall and thermal insulation material gypsum board, and the expected sound insulation effect can reach 60 acoustic bars.

Thermal insulation

The thermal insulation material used is glass wool board as the main body, which has good thermal insulation and thermal insulation expected effect. The thermal insulation material used for the wall can scientifically and reasonably avoid the "deformation" of the wall, and achieve the expected effect of heat insulation and insulation. About 100mm thick R15 thermal insulation material thermal resistance value can be equivalent to 1 meter thick wall.

Physical and mental health

Do the construction work, reduce the air pollution caused by waste to the ecological environment, the raw materials of the steel structure of the house can be 100% recycled, and the raw materials of other service facilities can also be mostly recycled, which is in line with the current environmental protection awareness; All raw materials are green energy-saving buildings, taking into account the requirements of ecological environment management, which is conducive to health.

Service performance

The residential structure of light steel structure is all composed of cold drawn thick wall pipe steel component system management, and the draw-anchor is produced and processed by very corrosion resistant and high toughness cold galvanized sheet, which effectively avoids the harm of corrosion of carbon steel plate in the whole process of construction and application, and improves the service life of light steel structure components. The service life of the structure can be 100 years.

Comfort level

The walls of light steel structure are managed with high efficiency, energy saving and environmental protection system, which has respiratory effect and can adjust the dry humidity of indoor air pollution; The roof has the effect of air circulation, which can cause a liquid vapor space above the interior of the house to ensure the air circulation and heat dissipation requirements inside the roof. Five, the advantages and disadvantages of steel structure.


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Zhishang Steel Co., Ltd

ABOUT USOverviewThe company mainly deals in color-coated, galvanized, stainless steel pipes, stainless steel coils, stainless steel plates of various materials; hot-rolled series of rebar, medium and heavy plates, coils, I-beams, angle steels, channel steels, H-beams and other steel products and deep processing Service. (The company’s annual invent···

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