2025-10-07    89

Steel structures are widely used in an extensive range of projects, including high-rise and super high-rise buildings, long-span and large-space structures, as well as numerous small and medium-sized industrial, commercial, community, cultural, educational, and healthcare buildings. Their application also extends to bridges, towers, most low-rise non-residential buildings, and various other structures.

The use of steel structures offers significant advantages, as components can be manufactured off-site in factories and then assembled on-site, which greatly accelerates construction progress. Currently, in developed countries, steel structure buildings are characterized by their diverse applications and high steel consumption, with their superior performance and efficiency confirmed through practical application.

In Europe, the Americas, Japan, Taiwan, and other regions, industrial facilities are almost exclusively constructed using steel structures. In the United States, approximately 70% of non-residential and two-story-or-less buildings employ steel frame systems.

In the field of structural reinforcement and retrofitting, common applications include:

• Adding new steel mezzanine floors

• Installing new steel staircases and steel platforms

• Integrating steel components with reinforced concrete columns

• Strengthening existing concrete beams by adding steel elements