Heavy Modern Commercial Steel Structures Fire Resistance For Shopping Mall
Product Description:
The load bearing parts are mainly steel structures, including steel columns, steel beams
steel structural basements, bracing systems for wall and roof. The Main Structure are usually made of Q345 Steel while the Purlins and Bracing System are made of Q235 Steel. They are the most common steel materials used for steel structure in China.
Specification:
| Wind speed | 75(100),100(130),120(160),130(150),140(180),150(200) |
| Wind pressure | As the customer request |
| Material | Q235,Q345,Q420 |
| Color | As the customer request |
| Height | 20---100m |
| Appearance | Hot-dip-galvanized Steel Poles or Painting |
| Connection structure | Overlap/Flange connection |
| Certifications | GB/T19001-2008-ISO9001,GB/T 24001-2004-ISO 14001,GB/T28001-2001 |
| Spare parts | Parts for connection or installation will be provided |
| Lifetime | 50 years |
| Platform Quantity | As the customer request |
| Antenna Support | As the customer request |
| Microwave Dish | As the customer request |
| Shape | As the customer request |
Steel Structure Features:
1, high strength, light weight
Although the density of steel than other building materials, but its strength is high, the same force case, the steel weight is small, can be made into a larger span structure.
2, plastic, toughness
Good plasticity of steel, the structure under normal circumstances will not be accidental overload or local overload and sudden fracture. Good toughness of steel, the structure of the dynamic load of adaptability.
3, reliability
Steel internal organization is uniform, isotropic. The actual working performance of the steel structure is in good agreement with the theoretical calculation results, so the reliability of the structure is high.
4, solderability
Because of the weldability of steel, the steel structure of the connection is greatly simplified, adapted to the manufacture of complex shapes of the structure.
Steel production, installation of a high degree of industrialization
Steel production is mainly in the specialized metal structure factory, thus making simple, high precision. Made of components transported to the scene to install, a high degree of assembly, installation speed, duration is short.
5, sealing
The internal structure of steel is very dense, when using welded connections, even with rivets or bolts, are easy to do close without leakage.
6, fire resistance
When the steel surface temperature in 1500C or less, the steel strength changes are small, so the steel structure for hot workshop. When the temperature exceeds 1500C, its strength decreased significantly. When the temperature reaches 500-600t, the strength is almost zero. Therefore, the occurrence of fire, the fire-resistant steel structure shorter, a sudden collapse will occur. There are special requirements of the steel structure. To take insulation and fire-resistant measures.
7, corrosion resistance
Steel in the humid environment, especially in a corrosive medium environment, easy to rust, need regular maintenance, an increase of maintenance costs.
