2025-01-21    314

　　Prefabricated buildings can be categorized into three major types based on their structural systems: precast concrete (PC), steel structure (PS), and wood structure. Currently, the mainstream structure remains PC. Steel structure, an emerging type of prefabricated building, differs from precast concrete in that all its primary load-bearing components are made of steel, consisting of galvanized steel sections and EPS insulation materials, with components connected on-site using bolts or rivets. Over 80% of the components for steel-framed buildings can be processed in factories, and they are easy to dismantle, with some products and materials being recyclable.

　　Steel-framed buildings boast superior performance and serve as a substitute for traditional concrete structures. Compared to traditional concrete structures, steel-framed buildings exhibit three key characteristics: "height, large span, and lightness," facilitating standardized design, industrialized component production, mechanized construction, and assembly.

　　Furthermore, steel structures offer the following performance features:

　　1.Lightweight with high strength;

　　2.Small footprint with high space utilization, offering a 5% to 8% increase in usable floor area compared to traditional reinforced concrete residences;

　　3.Excellent ductility and seismic performance;

　　4.High construction efficiency with a shortened building cycle;

　　5.Energy-saving and environmentally friendly.

　　Prefabricated steel-framed buildings offer advantages such as superior seismic performance, flexible floor plans, lightweight and high strength, environmental friendliness, and construction convenience. With the combination of various favorable policies, prefabricated steel-framed buildings are poised to enter a golden period of development.