Commercial building refers to buildings for commodity exchange and business activities. Steel structure widely used in commercial and service buildings, such as office building, stadium, aircraft hangar, garage building, and low- and multi-story residential buildings.
It can also use for adding floors, rebuilding, strengthening the old houses, and the area that inconvenient transportation, tight construction periods, and portable demolition buildings.
Steel structure can also replace masonry or wood structure, which is recyclable, in line with environmental protection and sustainable development principles.
Commonly used steel structure load-bearing systems include steel frame structure, multi-layer frame structure.
The amount of steel used for light steel structure is generally 20 ~ 50kg / m2, which mainly depends on the structure type, span, column distance, live load, and size.