Problems arising from honeycomb aluminum curtain wall

AlthoughHoneycomb aluminum plate幕墙有许多优点，但在实际应用中也会产生一些问题， 其主要问题反映在以下两个方面：①Deformation of aluminum curtain wall panel(drum kit);②Aluminum curtain wall insulation energy saving.

1 Deformation of honeycomb aluminum plate curtain wall panel

1.1 The aluminum panel in the curtain wall will be deformed after installation, or after a period of time after installation, commonly known“drum kit”It seriously affects the decorative effect of the curtain wall finish. There are many reasons, such as thermal deformation of the board itself, thermal expansion and contraction of the air in the closed board cavity, architectural deformation, processing deformation, deformation of raw materials, etc. The main reason is that the design structure of the aluminum panel fails to release the thermal deformation generated by the aluminum panel itself.“drum kit”situation, which is aluminum plate deformation“drum kit”The main reason.

1.2 The periphery of the aluminum plate panel of the curtain wall is continuously or intermittently connected with the sub-frame, and is fixed with the curtain wall frame through the pressure plate. Since the pressure plate only presses the sub-frame on the frame of the curtain wall, relative sliding is allowed between the aluminum plate panel and the curtain wall frame, thus the deformation caused by thermal expansion and contraction can be released, and the four sides of the aluminum plate panel can be released.

1.3 The connection between the aluminum plate panel and the curtain wall frame also has adhesive type, hanging type, plug type, etc. As long as attention is paid to ensuring that the four sides of the aluminum plate panel can release thermal deformation, it should be regarded as a reasonable structure. However, in actual work, this point is often ignored, and one or several sides of the aluminum plate panel are fixed to death, resulting in the thermal deformation of the aluminum plate panel not being released in the curtain wall plane, thus causing the aluminum plate to appear when heated.“drum kit”phenomenon.

2 Thermal insulation and energy saving of honeycomb aluminum curtain wall

2.1 Building energy efficiency refers to the energy consumption of saving heating, air conditioning and refrigeration, lighting and indoor air purification, temperature adjustment, and improvement of the quality of the indoor environment. It also includes the use of solar energy and geothermal energy.(水)Comprehensive energy-saving technology engineering of energy. Building curtain wall is an integral part of the building envelope, is the most active and sensitive part of building heat exchange and heat conduction, and is the heat loss of the wall.5~6 Times.

2.2 The heat transfer of aluminum curtain wall is carried out in four ways, such as radiation, convection, heat conduction and ventilation. It is these complex heat transfer phenomena that make the aluminum curtain wall the most heat loss part of the building, and energy saving is one of the important parts. The research shows that the main factors affecting the thermal insulation and energy saving of aluminum curtain wall are aluminum alloy frame and aluminum plate panel.

①The advanced aluminum alloy frame profile not only has high strength but also has good heat insulation performance. At the same time, the inner and outer profiles can be composed of profiles with different colors and surface treatment methods, which increases the decorative effect.

②When choosing an aluminum panel, in addition to paying attention to its wind resistance and decorative effect, you should also pay attention to the heat preservation effect of the material itself, and try to choose an aluminum panel with low thermal conductivity and good energy-saving effect.

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