Advantages of Steel Structure in Architectural Engineering

Advantages of Steel Structure in Architectural Engineering

1. High material strength and light weight

Steel has higher strength and elastic modulus. Compared with concrete and wood, the ratio of density to yield strength is relatively low, so under the same stress conditions, steel structure components have small cross section, light weight, convenient transportation and installation, and are suitable for structures with large span, high height and heavy load.

2. Steel toughness, good plasticity, uniform material, high structural reliability

It is suitable for bearing impact and dynamic load and has good seismic performance. The internal structure of steel is uniform and close to isotropic homogeneous body. The actual working performance of steel structure accords with the calculation theory. Therefore, the steel structure has high reliability.

3. Steel structure manufacturing and installation mechanization degree is high

Steel structural members are easy to manufacture in factories and assemble on construction sites. The factory mechanized manufacture of steel structure components has high precision, high production efficiency, fast assembling speed and short construction period. Steel structure is the most industrialized structure.

4. Steel structure sealing performance is good

As the welded structure can be completely sealed, it can be made into high-pressure vessels, large oil pools, pressure pipelines, etc. with good air tightness and water tightness.

5. The steel structure is resistant to heat and fire

When the temperature is below 150 ℃, the properties of steel change little. Therefore, the steel structure is suitable for hot workshops, but when the surface of the structure is exposed to heat radiation at about 150 ℃, it should be protected by heat insulation panels. When the temperature is between 300 ℃ and 400 ℃, the strength and elastic modulus of the steel decrease significantly. When the temperature is around 600 ℃, the strength of the steel tends to zero. In buildings with special fire protection requirements, steel structures must be protected with refractory materials to improve the fire resistance rating.

6. Steel structure corrosion resistance is poor

Especially in humid and corrosive environment, it is easy to rust. General steel structures shall be derusted, galvanized or coated, and shall be maintained regularly. For offshore platform structures in seawater, special measures such as " zinc anode protection" shall be adopted to prevent corrosion.

7. Low-carbon, energy-saving, green and environment-friendly and reusable

Demolition of steel structures hardly generates construction waste, and steel can be recycled.

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