The light steel framing building adopts the cold - formed steel as the bearing framework and light material as the enclosing structure . as its strength - weight ratio is comparably high and it could be formed according to the design , the cold - formed steel has obvious integrate economic benefits 冷弯薄壁住宅钢结构以冷弯c型钢龙骨结构体系为代表,采用经济型材冷弯型钢为承重骨架,以轻型墙体材料为围护结构所构成。