冷弯型钢是以热轧或冷轧带钢为原料,在常温下冷拔压制或辊弯成型,而得到的各种断面形状的建筑用钢材.阐述冷弯型钢在1~2层轻型民用建筑、以工字型截面门式刚架为主的横向承重结构在大跨度公用建筑中的应用及冷弯型钢的特点.通过实例,提出了不同结构中采用冷弯型钢的设计规格.并对冷弯型钢结构的建筑与普通钢结构以及钢筋混凝土结构的建筑在建设周期、用钢量及造价等方面作了分析、比较.“,”The hot-rolling or cold-rolling steel tape is used as raw material for cold forming sections which are formed by means of cold-drawing or roll-bending.The design specifications of cold forming sections used in different constructions are put forward via examples. This paper analyses and contrasts the cold forming section construction with traditional steel structure and rebar construction in consumption of steel,cost and period of manufacture.