Structural design of artificial panel curtain wall

The structural design diversity of panel joints is a major feature of artificial curtain wall panel. According to the panel material characteristics, architectural climate, architectural decoration effect and engineering practice, the Code for Artificial Sheet Curtain Wall stipulates:
(1) Porcelain plate, glass micro-crystalline curtain wall can be closed or open plate seam;
(2) stone honeycomb panel curtain wall should adopt closed plate seam, but also can use open plate seam;
(3) ceramic plate, fiber cement plate curtain wall should be open plate seam, which can also use closed plate seam;
(4) Wood fibreboard curtain wall should adopt open seam.

Porcelain plate and micro-crystalline glass plate are uniform materials with low water absorption and good weather resistance made by high temperature firing. Stone aluminum honeycomb panel is a composite material panel bonded by stone panel and aluminum honeycomb panel, which should be given priority to the use of sealant closed, and the use of open water sealing treatment. The bibulous rate of pottery board is on the high side, appropriate uses open mode board seam design preferentially, to bibulous rate lower pottery board, suit like building climate, also can use closed modern curtain wall design.
Fiber cement board is a cement board containing organic synthetic fiber or cellulose fiber with high water absorption rate of high pressure steam maintenance, which should give priority to the use of open, if the environment is suitable for and do a good job on the plate protection treatment can also be used in closed. Wood fibreboard is an organic material containing 70% wood fiber. Due to the natural properties of wood, the board will change with the relative humidity of the environment. Hardboard, therefore, on the positive and negative plate of environment temperature and humidity consistency of the demand is higher, otherwise prone to deformation, so should use open joints structure, reduce the panel inside the cavity pressure difference and the external environment, to reduce the pressure difference and into the panel inside the cavity of the rain, keep the panel inside the cavity and outdoor air circulation each other, Ensure that the ambient temperature and humidity inside and outside the panel are consistent.
For the open frameless curtain wall with ventilation on the back, the minimum distance between the panel and the outer surface of the back wall should not be less than 20mm. This is the minimum requirement for the ventilated space on the back of the curtain wall panel. In the specific project, according to the wind environment of the curtain wall and the concrete situation of the joint design of the panel, the space requirements of the appropriate ventilation layer should be determined. The design of open curtain wall seam should be based on the decorative effect of the external wall facade.