Stadium steel structure canopy
The service life of the steel structure canopy of the stadium is very long. Usually, no one needs to protect it frequently, and it is relatively strong against external impact. Tensioning membrane technology is often used in the production of stadium membrane structure shed. The characteristics of membrane structure as a building system mainly depend on its unique shape and the performance of membrane itself. Because of this, the membrane structure can create a design scheme that cannot be realized by the traditional building system.
Light transmittance is one of the most widely recognized characteristics of modern membrane structures. The light transmittance of membrane materials can provide the required illuminance for buildings, which is very important for building energy conservation. It is particularly important for some commercial buildings requiring more light and high brightness. Through the comprehensive utilization of natural lighting and artificial lighting, the light transmittance of membrane materials can provide greater aesthetic creation space for architectural design. At the same time, the unique curved shape of the tensile membrane structure makes it have a strong sense of sculpture. The membrane surface achieves self balance through tension. The balance of the undulation of the negative Gauss film surface makes the larger structure seem to float lightly between the heaven and the earth as if it were free from the shackles of gravity. Membrane structure canopy of stadium There are generally three types of structural forms. Liaoning Xumei analyzes different forms and obtains the following results:
1. Inflatable membrane structure
The inflatable membrane structure is to fix the membrane material around the roof structure, and use the air supply system to raise the indoor air pressure to a certain pressure, so that the pressure difference between the inside and outside of the roof can be generated to resist external forces. Because the air pressure is used to support, and the steel cables are used as auxiliary materials, without any beam or column support, it can get more space, and the construction is fast and the economic benefits are high, However, it is necessary to maintain 24-hour operation of the forced draft fan, and the cost of continuous operation and machine maintenance is high. 2. Framework membrane structure
The roof skeleton composed of steel structure or integrated material is in the form of tensile membrane above it. The lower support structure has high stability. Because the roof shape is simple, the opening is not easily restricted, and the economic benefits are high, it is widely applicable to any large or small space.
3. Tensioned membrane structure
It is composed of membrane materials, steel cables and pillars. Tension is introduced into the membrane materials by steel cables and pillars to achieve stability. In addition to the practical, creative and beautiful shape, it is also the structural form that best demonstrates the spirit of membrane structure In recent years, large span space also adopts the form of steel cable net composed of steel cables and compressed materials to support the upper membrane materials. The construction cost is slightly higher than that of skeleton membrane structure due to high construction precision requirements, strong structural performance and rich expressiveness.
