The steel structure mainly made of hot-rolled C-section steel has scienctific and reasonable structure, good plasticity and fiexibility, and high structure stability. It is suitable for the construction structure with large vibration and impact load and strong resistance to natural disasters. It is especially suitable for the construction structure with many earthquake zones.

The structure is light in weight. Compared with the self weight of concrete structure, the decrease of the self weight of structure reduces the internal forece of structural planning, which can make the demand of structural foundation treatment low, the construction simple and the cost reduced.

Compared with welding C-section steel, it can obviously save labor and material, reduce the consumption of raw materials, power and labor, lower residual stress, and better appearance and surface quality.

C-beam planning is sensitive and rich. In the case of the same beam height, the bay of steel structure can be 50% larger than that of concrete structure, and then make the construction and placement more sensitive.

Add useful use area of construcion. Compared with the concrete structure, the section area of steel structure column is small, and then the useful area can be added. Depending on the construction method, the useful use area can be added by 4-6%.

It is convenient for machining, structural connection and installation, and also easy to remove and reduce.