In order to accurately calculate the deformation and stress of the structure, the geometric nonlinear method should be used.
At present, there are mainly dynamic relaxation method, force density method, finite element method, etc. Because the membrane data is soft and the natural vibration frequency is low, the wind vibration is simply generated under the effect of wind load, resulting in the damage of membrane data. If the initial prestress is too high, the membrane material coating will become larger, simple aging, less strength storage, and the strength requirements for stressed components are also high, increasing the difficulty of construction and installation.
In 1970, the US Pavilion had a clearance of 140m × 83.5m is the membrane structure with large span in the world. Since then, the membrane structure has been gradually applied in the construction of sports, shopping malls, exhibitions, transportation service facilities and other large-span construction in foreign countries. Membrane structures have developed rapidly worldwide.
In 1975, the American Pontiac "Silver Dome" used air floating air membrane structure, with an aircraft size of 234.9m × 183m； In 1981, the terminal hall of Jeddah Airport in Saudi Arabia was of membrane structure, covering an area of 420000 m2;
The strength of the membrane, as well as the tensile and tear strength. The selection of membrane materials with appropriate parameters is mainly based on the area and prestress of membrane structure, so that the membrane structure data can meet the needs of membrane structure construction without waste.
Durability and anti-aging function, self-cleaning function and various climatic functions. Membrane structure landscape
For the requirements of fire prevention, this is mainly to select the materials of membrane structure that are flame retardant or non flame retardant. This depends on the function of membrane structure construction and the fire resistance grade rules of its environment on membrane structure data.
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