Metal curtain wall is a new type of building curtain wall, used for decoration. It is a curtain wall form to replace the glass in the glass curtain wall with metal sheet, but because of the difference between the surface material and the two are very different, the design and construction process should be considered respectively. Due to the excellent machining performance sheet metal, color variety and good security, to fully adapt to the complex modelling design, can increase the line of concave and convex, and processing various types of curve line, to the architect to huge play space, destinations for architects, thus obtained the development which progresses by leaps and bounds.
Since the late 1970 s, aluminum alloy doors and Windows, curtain wall industry began to take off in China, the popularization and application of aluminum alloy glass curtain wall in the construction and development, from scratch, from imitation to their own research and development, from bear the small to the large engineering project contracting of construction projects, construction low-standard products from production to the production of high-tech products, From door window of low rise building in construction arrives construction tall glass curtain wall, from can process simple medium low profile to extrude the high-grade profile of complex section only, from rely on import development to external contract project, aluminium alloy door window and glass curtain wall got rapid development. In the 1990s, the emergence of new building materials promoted the further development of building curtain wall, and a new type of building curtain wall emerged in various parts of the country, namely, metal curtain wall. The so-called metal curtain wall refers to the building curtain wall whose panel material is metal sheet.
So far, the aluminum curtain wall in the metal curtain wall has been dominant in the metal curtain wall, lightweight material, reduce the load of the building, provides a good choice for high-rise buildings; Waterproof, anti-fouling, anti-corrosion performance is excellent, to ensure that the building surface lasting long new; Processing, transportation, installation and construction are relatively easy to implement, providing strong support for its wide use; The diversity of colors and the ability to combine them into different shapes expand the design space of the architect; High performance-to-price ratio, easy to maintain, long service life, in line with the requirements of owners. Therefore, aluminum curtain wall as a very powerful architectural form, much favor.
There are 4 kinds of surface materials used for aluminum curtain wall, (1) aluminum composite panel (2) single layer aluminum panel (3) honeycomb aluminum panel (4) sandwich insulation aluminum panel, currently the largest use is the first three kinds, since there are a variety of surface materials to choose from, they have differences before.
Aluminum panel curtain wall can be divided into unit aluminum panel curtain wall and component aluminum panel curtain wall according to the structural form of curtain wall, two forms, the so-called unit curtain wall refers to the panel, beam, column assembled as curtain wall unit in the factory, in the form of curtain wall unit to complete the installation and construction of the framed curtain wall. The so-called component curtain wall is a framed curtain wall with columns, beams and panels installed in sequence on site.
Application attention:
1. Deformation resistance of curtain wall system
It is necessary to carry out scientific mechanical calculation on every important part of the curtain wall system, consider the influence of wind pressure, dead weight, earthquake, temperature and other functions on the curtain wall system, and carefully check the embedded parts, connection system, keel system, panels and fasteners to ensure the safety of the curtain wall.
2. Whether the panels use floating connections
The floating connection ensures the recovery ability of the curtain wall after deformation, ensures the integrity of the curtain wall, and avoids the deformation caused by the acting force of the curtain wall, and avoids the occurrence of bulge or sag on the surface of the curtain wall.
3. The way the panels are fixed
The fixed way of panel plays a decisive role in the flatness of panel installation. The inconsistent force of each fixed point of the panel will cause the deformation of the surface material and affect the exterior decoration effect, so the fixed mode of the panel must be fixed with fixed distance compaction to ensure the smoothness of the curtain wall surface.
4. Whether there are reinforcing measures at the edge disassembly of composite surface material
Because the folding edge of composite panel material only retains the thickness of the front panel , the thickness is thinner and the strength is reduced, so the edge must have reliable reinforcement measures.
5. Whether the back of the board is properly equipped with stiffeners to increase the strength and stiffness of the board.
The layout distance of the reinforcement and the strength and stiffness of the reinforcement itself must meet the requirements to ensure the use function and safety of the curtain wall.
6. Waterproof sealing method is reasonable
There are many waterproof sealing methods, such as structural waterproof, internal waterproof and rubber sealing. The price of different sealing methods is not the same. Choose the appropriate sealing method for the project to ensure the function and exterior decoration effect of the curtain wall.
7. Whether the selected materials meet the specifications, standards and design requirements.
Nowadays, all kinds of building materials fill the building market, the quality of materials is not the same, the choice of qualified materials, is to ensure the quality of curtain wall, must use strict inspection means and methods to ensure the quality of materials.
Decorative advantages:
Metal curtain wall decoration, as a very powerful architectural curtain wall form, is favored for the following six reasons:
1、 Metal is a lightweight material, which reduces the load of building structure and foundation, and provides a good choice for the outer decoration of high-rise buildings.
2、the performance of the metal panel is excellent, heat insulation, sound insulation, waterproof, anti-fouling, anti-corrosion performance is excellent.
3、no matter processing, transportation, installation, cleaning and other construction operations are easier to implement.
4、metal panel has excellent processing performance, color diversification and good security, can fully adapt to the design of various complex shapes, and can process various types of curve lines, give architects a huge space to play, expand the design space of curtain wall designers.
5、 metal design adaptability, according to different appearance requirements, performance requirements and functional requirements can be designed to adapt to various types of metal curtain wall decoration effect.
6、performance price is relatively high, maintenance cost is very low, long service life.