LIGHT STEEL FRAME STRUCTURE BUILDING ,CHANGE NUMEROUS FOR BRIEF! PERFORMANCE REFORM IN THE GREAT LEAP FORWARD!
Light steel structure of low-rise residential building technology is on the basis of the north American style wood construction technology has evolved, after one hundred years of development, has formed the excellent physical performance, flexible space and shape that is easy to build, various forms of mature construction system. Best in the world is known as the living environment of the north American continent. A large part of the low-level civil buildings, including residence, shopping malls, schools, office buildings and other wood or ultralight use light steel structure building(even our neighbors Japan and South Korea). North American light wood structure and ultra light steel structure In the whole construction market holds advantage. In recent years, with rising prices of wood, north American super light steel structure system of the market development is rapid growth rate of more than 30% of growth, gradually widely accepted by the market. At the same time, in our neighbor Japan(become KC system in Japan) and South Korea, and Australia etc other developed countries has also been a large number of adoption.
For load-bearing structural system using galvanized light steel keel, it is a kind of great innovation, this architecture has a better seismic. anti-corrosion, insect-resistant,environmental protection and energy efficiency. Because the ultra-light steel structure prefabricated low-rise industrial buildings, light weight, and the material properties of the metal in the form of shear wall structure must determine the ultra-light steel structure system born seismic performance. Due to earthquake activity for the left and right and up and down,so use fasteners of lightweight steel structure formed a box, security and stability but will not appear because of the earthquake shaking collapsed wall or floor off the endanger personal safety. The brick building seismic performance difference is recognized by most people and the Sichuan (one of the provinces in China) earthquake has been a very good example.Seismic performance of concrete structures to do the same takes the structure of the higher cost of materials, on the contrary it will improve the overall cost of construction, construction difficulty and the design difficulty will be increased.
Light gauge steel structure owns the advantage of light weight , excellent strength , good rigidity and great flexibility . It only weighs one fifth of the brick and concrete structure , withstanding wind of 50m / s to 70m / s , so it can provide reliable support to people and their property.
Light gauge steel structure is made of cold-formed thin-walled steel . The frame is cold-formed galvanized and aluminum-coated steel sheet , which is of great corrosion resistant ability , reducing the possibility of corrosion caused during construction , and increasing the life of steel frame . The life span can be 50 to 70 years.
Light gauge steel structure applies glass wool and rock wool as insulated material to achieve satisfactory heat maintaining and heat resisting performance . The exterior wall panel is heat insulated so it can protect the wall from " frozen and realize better insulation . The thermal resistance of R15 insulated wool is equal to that of 1m thick brick wall .
It is important for the house to have good sound insulation . So the window we use in our light gauge steel structure is of hollow glass , with the sound insulation of 40 decibels . Meanwhile , the wall that made of light gauge steel structure and insulated plasterboard has sound insulation of 60 decibels.
There is a layer of humidity resistant material on the surface of exterior wall . It is the waterproof and breathable membrane , which is new high - molecular material . The surface of this kind of material is of extremely tiny hole structure . As the diameter of water is 0 . 02mm and that of vapor is 0.0000004mm , so this great difference in diameter enables the moisture to go out but not come in.
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