钢构件是指用钢板、角钢、槽钢、工字钢、焊接或热轧H型钢冷弯或焊接通过连接件连接而成的能承受和传递荷载的钢结构组合构件。

钢构件体系具有自重轻、工厂化制造、安装快捷、施工周期短、抗震性能好、投资回收快、环境污染少等综合优势，与钢筋混凝土结构相比，更具有在“高、大、轻”三个方面发展的独特优势，在全球范围内，特别是发达国家和地区，钢构件在建筑工程领域中得到合理、广泛的应用。

Steel components refer to composite components of steel structures that can withstand and transmit loads by connecting steel plates, angle steels, channel steels, I-beams, welded or hot-rolled H-beams through cold bending or welding.

The steel component system has comprehensive advantages such as light weight, factory manufacturing, fast installation, short construction period, good seismic performance, fast investment recovery, and low environmental pollution. Compared with reinforced concrete structures, it has unique advantages in the development of "high, large, and light" aspects. Steel components have been reasonably and widely used in the field of construction engineering worldwide, especially in developed countries and regions.