China Central Television introduces the light steel house中国中央电视台带我们了解轻钢房屋

1. What is Light Steel Building? 什么是轻钢建房？

Light Steel Building is constructed by somesmall sections of steel which are load-bearing members. It can be done by assembly line works and industrialproduction. In other words, atwo or three hundred square meters of house can be constructed in 30 days, withability to resist earthquake, typhoon and so on.

轻钢建房是用断面比较小的型钢作为房子的承重构件。它可以实现流水线作业，工业化生产。也就是说，一套两三平米的房子可以三十天左右完成，并且可以抵抗地震、台风等自然灾害。

2. How is the quality? 质量如何？

The staffused less than 1 mm thick steel to make three six-meter beamsand combined them together. In order to conduct the experiment, they put a fewplanks on it.Thirty adults stood together on it, and the beamstructure made of light steel turned out to be only slightly sinking inthe center.

工作人员利用不到1毫米厚的钢材，制作三根六米长的横梁，并将他们组合在一起。为了方便放重物，他们只在上面简单的搭了几块木板，来进行实验。30个成年人一起站到上面，用轻钢制作的横梁结构，竟然只是中心轻微下沉。

The staff testedit with gypsum boards. The weight of each group of gypsum board is 2.4 tons,and a group of heavy objects outweighed 30 people. When the first set of gypsumboard was put on, the light steel beam obviously didn’t deform much. When thesecond set was added, the middle of the beam sank 1.1 cm. When the staff liftedthe fourth set, the middle of the beam sank more than 3 cm, but the whole beamwas still standing. When all the load-bearing objects were withdrawn, the lightsteel beams miraculously returned to their original shape, which is one of theadvantages of the light steel structure.

工作人员用石膏板组成的重块来测试。每一组石膏板的重量是2.4吨，一组重物就已经超出了30个人的体重。当第一组石膏板被放上去的时候，轻钢横梁显然没有多大的变形。当加第二组石膏板的时候，横梁中间下沉了1.1厘米。当加到第四组石膏板的时候，横梁中间下沉的幅度已超过3厘米，但是整个横梁却依然挺立着。当所有承重物被撤出以后，轻钢横梁奇迹般的恢复原状，这也就是轻钢结构的最大优势。

3. What is thedifference between Light Steel Building and traditional construction?

轻钢建房和传统建筑有什么区别吗？

The seismicresistant property

抗震性能

Two houses weremade separately, with the same sizes, placing on the same shaking table. Whenthe shaking table swayed, the whole structure cracked. In 15 seconds, thewhole house collapsed, and even the foundation cracked.

工作人员分别制作了两种结构房屋的骨架，大小尺寸都相同，把它们放在同一个震动台上。在震动台一晃动的瞬间，整体结构已经开裂，不到十五秒钟的时间，整个房子轰然倒塌碎了一地，甚至地基都已裂开。

The small housewith light steel structure was placed on the table until the whole vibrationwas completed. Although the bottom part disengaged from the fixed platform, thestructure of the house was intact without deformation. The seismic performancewas extremely good. It couldn’t be damaged by an earthquake, although beingdamaged. In the experiment, for houses of the same thickness and size, theseismic resistant property light steel structures was significantly betterthan that of brick-concrete structures.

轻钢结构的小房子放在地震台上，直到整个震动完成，除了底部脱离了固定台之外，房屋结构完好无损，没有一点变形。轻钢房屋这种材料的抗震性能特别好，它能够在地震中发生很大的变形而不坏。从实验来看同样厚度和大小的房屋，轻钢结构的抗震性能明显优于砖混结构的房屋。

The ability tosaving energy

保温节能

Light steelstructure materials are recycled, When it comes to raw materials, productionand manufacturing, construction process and maintenance, Light SteelBuilding is truly a combination of safety, health and environmental protection. Becauseof this, it has been widely recognized as an energy-saving housingsystem with promotional value, and has been spread by customers. Inaddition, all kinds of thermal insulation materials filled in the wall havegood thermal insulation effect.The combination of light steel structure, thermalinsulation glass fiber cotton and various maintenance plates is a combined wallsystem and a combined roof system with good performance, with excellent thermalinsulation effect.

轻钢结构材料可回收和循环利用。从原材料本身、生产制造环节、建造过程和维护保养等全过程来看，轻钢房屋真正集安全、健康、环保于一体的合集。正因为如此，它才成为广泛公认具有推广价值的节能房屋体系，并受到了广大用户的大力传扬。此外，墙体所填充的各种保温隔热材料也具有良好的保温隔热效果。轻钢结构、保温隔热玻纤棉和各种维护板材的组合，形成了性能良好的组合墙体系统和组合屋面系统，具备优良的保温隔热效果。

Two brick-concrete structure houses and light steel structurehouses of the same size and thickness were separately tested in a professionallaboratory to see the temperaturedifference between them. The temperature in the incubator dropped to minus 30 ° C.The experiment showed that during the cooling process, the temperaturedifference between the temperature in the light steel structure and thebrick-concrete space has been maintainedat about 13 ° C.

两个大小厚度都相同的砖混结构房屋和轻钢结构房屋，被送到专业的实验室去做测试，看他们之间的温差到底有多少。保温箱里的温度将持续下降到零下30℃，实验显示在降温过程中，轻钢结构里面的温度和砖混空间里面的温度差一直保持在13℃左右。

Fire resistance

防火

Continuouslyburned by a spray gun at 1000 degrees Celsius, all the materials that made upthe wall almost no smoke and open flames appeared, although some materials weremelted and shrunk. The light steel structure was able to resist firefor four hours and maintain sufficient support capacity, which saved the timefor rescue in the fire.

组成墙体的所有材料上在千摄氏度喷枪的持续燃烧下，几乎都没有产生烟雾和明火，只是有些材料出现融化萎缩的现象。而轻钢结构在明火持续燃烧四小时，仍然能保持足够的支撑能力，这在火灾中最大限度的为救援争取了时间。

Corrosionresistance

防腐蚀

Thealuminum-zinc plated material performed well in salt spray test, in a 5% saltspray environment:

1) Without anyprotection, rebar was immediately corroded.

2) With a simplecoating, Ordinary heavy steel was also severely corroded during the seven-dayexperimental period.

3) Only the surfaceof light steel plated with aluminum and zinc was still smooth and shiny,showing no signs of corrosion.

镀了铝锌的材料在盐雾实验中也的确表现良好，在5%盐雾环境中：

1）没有任何保护的钢筋立刻就被锈蚀了

2）拥有简单涂层的普通重钢，也在七天的实验时间里，锈蚀严重

3）只有镀了铝锌的轻钢表面依然光滑闪亮几乎没有锈蚀的痕迹