An expert in PVC tarpaulin / PVC film industry since 2002

PVC film manufacturers briefly describe the characteristics

by:LINYANG     2020-06-10
Various things have their own unique characteristics, here we talk about the characteristics of the membrane structure. The characteristics of the membrane structure as a building system mainly depend on its unique shape and the performance of the membrane itself. Because of this, the use of membrane structures can create design solutions that cannot be achieved with traditional building systems. 1. Lightweight: The reason for the low self-weight of the tension structure is that it depends on the prestressed form rather than the material to maintain the stability of the structure. So that its own weight is much smaller than the traditional building structure, but it has good stability. Architects can take advantage of the characteristics of its light weight and large span to design and organize structural detail members to unify its light and stable structural characteristics. 2. Transparency: Transparency is one of the most widely recognized characteristics of modern membrane structures. The transparency of pvc transparent film can provide the required illumination for the building, which is very important for building energy saving. It is especially important for some commercial buildings that require much light and high brightness. Through the comprehensive use of natural lighting and artificial lighting, the translucency of the membrane material can provide greater aesthetic creation space for architectural design. At night, light transmission turns the membrane structure into a sculpture of light. The translucency of the membrane material is determined by its base fiber, coating and its color. The spectral transmittance of standard membranes is between 10% and 20%. Some membranes have a spectral transmittance of 40%, while others are opaque. The transparency of the film and the choice of light color can be adjusted by the color of the coating or the color of the surface layer. Through the proper combination of the film material and the light-transmitting heat-insulating material, the multilayer film containing the heat-insulating layer can be made light-transmissive. Even if the spectral transmission is only a few percentage points, the membrane roof is still shiny and translucent to the human eye, with a light roof look and feel. 3. Flexibility: The tensile membrane structure is not rigid, and it will deform under the action of wind load or snow load. The membrane structure adapts to the external load by deformation. During this process, the radius of curvature of the membrane surface in the direction of the load will decrease until it can resist the load more effectively. The flexibility of the tension structure allows it to produce large displacements without permanent deformation. The elastic properties and prestress levels of PVC film materials determine the deformation and reaction of the membrane structure. Adapting to the flexible characteristics of nature can inspire people's architectural design inspiration. Different membranes have different flexibility procedures. Some membranes have excellent flexibility and will not cause embrittlement or damage due to folding. Such materials are the basis and premise for effectively realizing movable and expandable structures. 4. Sculptural sense: The unique curved shape of the tensile membrane structure makes it have a strong sculptural sense. The membrane surface is self-balanced by tension. The balance of the negative Gaussian membrane surface makes the larger structure look like it is floating freely between heaven and earth as if it is free from the gravity. The sculptural texture, both indoors and outdoors, is exciting. The light at night gives the membrane structure a strong sense of sculpture The tensile membrane structure allows architects to design various tension self-balancing, complex and vivid spatial forms. With the change of light in a day, the sculptural membrane structure takes on different forms through light and shadow. At sunrise and sunset, the light of low incident angle will highlight the curvature and relief effect of the roof. When the sun is at a distant location, the streamlined boundary of the membrane structure casts a curved shadow on the ground. Using the translucency and reflectivity of the membrane material, the designed artificial light can also make the membrane structure into a light sculpture. 5. Safety: The light tension membrane structure designed according to the existing national codes and guidelines has sufficient safety. The light structure can maintain good stability under the action of earthquake and other horizontal loads. Due to the light weight of the light structure, even if it accidentally collapses, its risk is less than that of the traditional building structure. When the membrane structure is torn, if the structural arrangement can ensure that the rigid support members such as masts and beams do not collapse, the risk will be less. The flexibility of the membrane structure allows it to be carried in the most favorable form under any load. Of course, the layout and shape of the structure should be designed and adjusted according to the load. The design should confirm that the membrane surface and its auxiliary structure work in coordination to avoid the concentration of force on the membrane surface or the auxiliary structure to reach the critical value of structural damage.
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