Steel structure is a structure which is made from the organized combination of custom-designed structural steel members to meet architecture and engineering requirements of users. Steel structure involves sub-structure or members in a building made from structural steel.
Advantages of steel structures
They are super-quick to build at site, as a lot of work can be pre-fabbed at the factory.
They are flexible, which makes them very good at resisting dynamic (changing) forces such as wind or earthquake forces.
A wide range of ready-made structural sections are available, such as I, C, and angle sections
They can be made to take any kind of shape, and clad with any type of material
A wide range of joining methods is available, such as bolting, welding, and riveting
Disadvantages of steel structures
They lose strength at high temperatures, and are susceptible to fire.
They are prone to corrosion in humid or marine environments.
Various shapes of structural steel
Angle: L-shaped cross section.
Structural Channels: C-beam or C-shaped cross section.
T-shaped cross section.
Rail Profile: Strap rail, Flanged rail, Baulk rail, Barlow rail, Flat bottomed rail, Double-headed rail, Bullhead rail, Tangential turnouts, Grooved rail.
Bar: a piece of metal, rectangular cross-sectioned and long, but not so wide so as to be called a sheet.
Open web joists.
Main structural types