To ensure the safety of steel structures have what characteristics

To ensure the safety of steel structures have what characteristics

1, good airtight performance

Since the welded structure can be completely sealed, airtight and watertight some requests good pressure vessels, large oil depots, gas cabinets, piping, etc. are made from steel plate and shell structures. Hainan Steel

2, has a heat resistance

When the temperature is within 250 ℃, a small change in properties of the steel, the temperature reaches above 300 ℃, the strength is gradually decreased, reaches 450 ℃ ~ 650 ℃, the intensity is reduced to zero. Therefore, steel can be used in case of a temperature of not higher than 250 ℃ of. In the request itself has special fire building, steel must be maintained with refractories.

3, poor corrosion resistance of steel

Steel's biggest drawback is easy to rust. Create new steel generally takes careful rust, galvanized or paint brush. After a certain time interval, again, paint brush, high maintenance costs.

4, elastic, plastic, and strong seismic performance

Under the same conditions as the bearing capacity, steel or reinforced concrete structure, wood structure compared to smaller components, lightweight, easy to transport and install. Due to homogeneity and toughness of the steel material, may have large deformation, it can be an excellent withstand dynamic loads, with excellent shock resistance. Among them, the yield ratio is a key measure of the ability parameters hardening steel. The lower the yield ratio, the ability of steel to resist strong earthquakes stronger. Request the European construction steel yield ratio is less than 0.91, and the Japanese request construction steel yield ratio of less than 0.80. At the same time, steel has good elastic, plastic and impact resistance, in general, the steel structure of the ability to adapt to dynamic loads, its good ductility and energy dissipation capacity can ensure that it is not due to changes in external loads abruptly fracture, which is steel seismic wrong very advantageous.

In addition, the steel structure of these characteristics, not only can effectively reduce the project cost structure, but also makes it a clear advantage in dealing with special foundations and the like. Hainan Steel