Does modern architecture have to use steel?

Modern buildings are not necessarily made of steel. Steel structure is one of the main building structure types in modern architecture.

Compared with the traditional reinforced concrete structure, steel structure building has the advantages of light weight, high strength, safety and reliability, good seismic performance, energy saving and environmental protection, and can increase the building space by 3%-4%. Especially in the northern region, steel structure buildings can be prefabricated in factories, which is not affected by seasons, reducing the workload on the construction site and greatly shortening the construction period. In recent years, steel structure technology has been popularized with the development of modern construction industry, and has become an important pillar for the development and upgrading of modern construction industry.