Curtain Wall Engineering Construction
Curtain wall construction refers to the Bai enclosure of the external wall without bearing the load of the building, which is generally composed of the panel (glass, metal plate, stone plate, ceramic plate, etc.) and the supporting structure (aluminum beam column, steel structure, glass rib, etc.).
Curtain wall is composed of supporting structure system and panel, which can be displaced from the main structure, and does not take charge of the effect of the main structure to build external enclosure or decoration structure.
During the 12th Five Year Plan, China will vigorously carry out the construction of energy-saving related industries, and China will carry out energy-saving transformation for 570million square meters of construction, which is undoubtedly a rapid development opportunity for curtain wall industry.
After years of development, curtain wall industry in China has developed rapidly, and has become a big country in curtain wall production and use. Curtain walls in China produce and install 55million square meters of curtain walls each year, with an annual output value of nearly 120billion, and the total amount of shopping malls has accounted for more than 60% of the total international volume. The outer retaining wall is constructed by the panel and the supporting Bai bearing structure system (supporting device and supporting structure), and the relative main body has certain displacement or has certain deformation ability and does not bear the effect of the main structure.
Curtain wall is the outer wall protection of building objects, which is not bearing load, and is hung up like curtain, so it is also called hanging wall. It is a light wall with decoration effect commonly used in large and high-rise buildings. It is composed of structural frame and inlay plate, which does not bear the load and effect of main structure.
The characteristics of steel structure engineering "
Seismic resistance: the roof of low-rise villa is mostly slope roof, so the roof structure basically adopts the triangle type roof truss system made of cold-formed steel structure. After sealing the structural plate and gypsum board, the light steel members form a very strong "slab rib structure system". This structural system has stronger seismic resistance and resistance to horizontal load, and is suitable for seismic intensity of 8 Area above degrees.
Wind resistance: the steel structure is light in weight, high in strength, good in rigidity and strong in deformation resistance. The self weight of the building is only one fifth of the brick concrete structure, which can resist the hurricane of 70 meters per second, so that life and property can be protected effectively.
Durability: the residential structure of light steel structure is made of cold-formed thin-walled steel members system. The steel bone is made of anticorrosive high-strength cold rolled galvanized sheet, which can avoid the corrosion of steel plate during construction and use, and increase the service life of light steel members. The structure life can reach 100 years.
Heat preservation: the selected insulation materials are mainly glass fiber cotton, which has outstanding heat insulation function. The insulation board used for external wall can avoid the phenomenon of "cold bridge" of wall, and achieve better insulation effect. The thermal resistance of R15 insulation cotton with thickness of 100mm can be equivalent to that of 1m thick brick wall.
Soundproofness: the sound insulation is an important objective for evaluating the residence. The windows of light steel system are all hollow glass, which has good sound insulation effect and the sound insulation is more than 40 db; the sound insulation effect of the wall composed of light steel keel and gypsum board of thermal insulation materials can reach up to 60 dB.
Health: dry construction, reduce the pollution caused by waste to the environment, the steel structure data of the house can be recovered 100%, and other supporting data can also be recovered mostly, which conforms to the current environmental protection awareness; all the data are green building materials, satisfying the ecological environment requirements and conducive to health.
