In the process of designing and manufacturing a large number of membrane structures, it is inevitable to encounter some problems related to the drainage of membrane structures. How to combine the drainage structure and practical aesthetics of membrane structures is a major challenge in membrane structure construction. Good water drainage is not good, drainage is very good for the design is not very coordinated. The following content will give a good reference to the film structure professionals, how to analyze the water conduction structure from the principle of solution.
Our common membrane edge is often a space curve, especially the boundary of a flexible cable. Drainage and water diversion often make it difficult to achieve organized drainage of ordinary buildings, and it is not convenient to use as a rigid ditch. Therefore, free water can be used for low drainage requirements, small catchment area, and low water fall height. However, when the requirements for drainage are high, the catchment area is large, and the height of falling water is large, the structure of the diversion nodes shown in Figure 3-61 can be used to achieve organized drainage.
The film-guiding structure of the edge of the water-conducting node a shown by the film with the water, the film with soft plastic, polyester and other filling materials, the formation of retaining water, water guide, the film with the main film welding or glue, welding location Should be staggered with the edge of the cable jacket to avoid welding caused by the film heat-induced stress concentration, the diameter of the film sleeve is often 30-60mm, after the main film is installed, the subsequent installation of the water film. Figure membrane structure at the edge of the water guide node b using D-shaped stainless steel plate retaining water, water guide, suitable for U-shaped bolts connected to the edge of the membrane, water deflector connected by U-shaped stainless steel bolts, guide plate thickness 0.25-0.75 Mm, height -60mmX (50-150) mm, pre-bending, hole making, with the membrane edge cable installed at the same time, to meet the larger displacement.
In the corners of the edge of the membrane, water collecting hoppers and downfalls are installed, or concentrated drains and concave grounds are used as water collection hoppers to achieve organized drainage. In the rigid membrane boundary, a similar water-conducting node can also be used to reduce the size of an oversized, bulky rigid gutter, but it should have a larger drainage gradient than a typical gutter, such as greater than 5%.
In short, the drainage method in the membrane structure building should be adapted to local conditions, and the most suitable method should be selected to achieve the unity of usability and aesthetics.
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