1、 Application of light steel structure 1. Low rise light steel buildings: low rise light steel buildings refer to steel buildings with less than two floors (including two floors), mainly adopting solid web or lattice portal plane steel frame structure system. There are more than 8 million square meters of light-weight steel structures with gabled steel frames in China, and they are increasing at a rate of about 1 million square meters every year. 2. Multi storey light steel building: multi storey light steel building is another kind of building form with great development prospects, which can generally define houses with less than 10 floors; When the total height of public buildings is less than 24 meters, the floor load is less than 8 kn / M? Industrial plants in the city. This kind of building mostly adopts three-dimensional frame structure system, or plane steel frame structure system.

二、轻型钢结构的优缺点

2、 Advantages and disadvantages of light steel structure

1、空间大、重量轻、体积小：轻钢结构与钢筋混凝土以及砖混比较，自重减轻15-30倍，体积减少2-5倍。利用钢材强度高的特点，设计可采用大开间布置，使建筑平面能够合理分隔，灵活方便，创造开放式建筑。钢管或钢骨混凝土柱子（现在我国工程中纯钢结构的柱子较少）充分合理利用了钢和混凝土的料特性，提高相应的强度来缩小截面，其抗压、抗侧弯强度，均比混凝土柱高１．５倍，大大增加了抗强震的能力，加大了有用空间。比起传统的结构，可以更好的满足建筑上大开间、灵活分隔的要求。并可以提高使用面积率５％-８％。

1. Large space, light weight and small volume: compared with reinforced concrete and brick concrete, light steel structure can reduce weight by 15-30 times and volume by 2-5 times. Using the characteristics of high steel strength, the design can adopt large bay layout, so that the building plane can be reasonably separated, flexible and convenient, creating an open building. Steel tube or steel reinforced concrete columns (now there are few columns of pure steel structure in our country) make full use of the material characteristics of steel and concrete, improve the corresponding strength to reduce the section, and their compressive strength and lateral bending strength are 1.5 times higher than those of concrete columns, greatly increasing the ability of strong earthquake resistance and increasing the useful space. Compared with the traditional structure, it can better meet the requirements of large bay and flexible separation. And can improve the use of area rate 5% - 8%.

2、综合成本较低：钢材的稳定的供给造成价位的波动很小。使用薄壁轻钢结构的墙面可以保持好的平面。这也意味着当你在钉钉子的时候墙面不会反弹和收缩破裂。因为材料可以预先切到需要的长度，所以在很大的程度上降低了浪费。

2. The comprehensive cost is low: the stable supply of steel causes little price fluctuation. The use of thin-walled light steel structure of the wall can maintain a good plane. It also means that when you're driving nails, the wall won't bounce and shrink and crack. Because the material can be cut to the required length in advance, the waste is greatly reduced.

另外，钢材的边料也是可以卖的，这样更是大大的降低了浪费。基础处理简便适用于广泛地质程度,基础部分比传统建筑要节约50%费用。合理墙体厚度使得用户的得房率比一般现行建筑要多出8%左右，且因为施工快，缩短了资金的周转期，加快了资金的流动速度，相应的降低了成本。

In addition, steel scrap can also be sold, which greatly reduces the waste. The foundation treatment is simple, suitable for a wide range of geological degrees, and the cost of the foundation part is 50% less than that of the traditional building. Reasonable wall thickness makes the user's housing rate about 8% more than the general current building, and because the construction is fast, it shortens the capital turnover period, speeds up the capital flow speed, and correspondingly reduces the cost.