(1) Definition of the curtain wall
The Curtain Wall is the outer wall of the building. It does not bear the weight and hangs like a curtain. It is also called the hanging wall. It is a lightweight wall with decorative effects commonly used in modern large and high-rise buildings. It consists of a structural frame and a mosaic sheet, and does not bear the structural envelope of the main structure load and function.
The curtain wall is a façade that replaces the traditional masonry or window and wall with a variety of strong, light and beautiful building materials. It is an outer wall that surrounds the outer structure and makes the whole building beautiful, multifunctional and safe. Construction method. In short, the building is put on a beautiful coat. The façade range mainly includes the exterior walls of the building, the roof (hood) and the awning.
Curtain wall for building: a panel and supporting structure system (supporting device and supporting system), which can have a certain displacement capacity relative to the main structure or a certain deformation ability, and does not bear the external protection of the main structure. wall.
(2) Characteristics of the curtain wall
1. The curtain wall is an independent and complete overall structural system;
2, the curtain wall is usually used on the outside of the main structure, generally wrapped on the surface of the main structure;
3. The curtain wall has a certain fretting ability in the plane relative to the main structure.
(3) History of the curtain wall
The architectural decorative curtain wall was used in construction engineering 150 years ago (mid-19th century). Due to the limitations of materials and processing techniques at that time, the curtain wall did not reach absolute water tightness, air tightness, and resistance to various natural external forces. (such as wind, earthquake, temperature), thermophysical factors (heat radiation, condensation) and sound insulation, fire prevention and other requirements, has not been well developed and promoted.
Since the 1950s, due to the rapid development of building materials and processing technology, various types of building materials have been successfully developed, such as the invention of various sealants and the emergence of other sound insulation and fireproof filling materials, which have solved the construction well. The external requirements for the curtain wall have gradually become the new trend of contemporary exterior wall decoration.
Today, curtain walls are not only widely used in the exterior walls of various buildings, but also in interior walls of various functions, such as communication rooms, television studios, airports (airports), large stations, stadiums, museums, cultural centers, and large Hotels, large shopping malls, etc.
In the future, due to the combination of curtain wall technology and technology, and corresponding to the global energy conservation and emission reduction call, intelligent curtain walls, such as solar photovoltaic curtain wall, ventilation channel respiratory curtain wall, induction wind and rain intelligent curtain wall, etc., will show the unique charm of the building.
(4) Development trend of curtain wall
1, from bulkiness to lighter sheet and structure (natural stone thickness 25mm, new material thinnest to 1mm)
2, the variety is gradually moving towards multiple types of plates and richer colors (currently there are stone, ceramic plates, microcrystalline glass, high pressure laminates, cement fiber silk plates, glass, inorganic glass steel, clay plates, ceramic plates, metal plates) Nearly 60 kinds of plates are applied to the outer wall)
3, higher security performance
4. More flexible and convenient construction technology
5, higher waterproof performance, extending the life of the curtain wall (from closed curtain wall development to open curtain wall)
6. Environmental protection and energy conservation (At present, the European and American construction market is commonly used for metal decorative insulation boards, which are made of color-painted aluminum-zinc alloy engraved veneer, polyurethane insulation layer and glass fiber cloth; taking into account the decoration and insulation energy-saving functions, topcoat 10-15 years without fading, the overall service life can reach 45 years ;)
LED underground lamp is a new buried decorative light with ultra-bright LED.
As the light source and LED constant current drive as the driving mode.
Widely used in squares, outdoor parks, leisure places and other outdoor lighting, as well as park greening, lawn, square, courtyard, flower beds, pedestrian street decoration, waterfall, fountain underwater and other places night lighting, add luster to life.
Advantages of LED underground light with small volume, low power consumption, long service life, strong and durable, convenient installation, chic and elegant modeling, anti-leakage, waterproof.
LED Underground Light,Led Underground Lamp,Outdoor Lights,Recessed Deck Light
Jilin Province Wanhe light Co.,Ltd , https://www.wanhelight.com