The resistance of Shandong membrane structure landscape sketches is still pretty good
Nowadays, the anti-attack ability of Shandong membrane structure landscape sketches sold on the market is still quite strong, and the load capacity of membrane structure landscape sketches is also relatively good. In fact, the so-called loads are usually wind and snow loads. The film material deforms greatly under the load, and the load distribution also changes with the shape. Therefore, geometric nonlinear methods are used to accurately calculate the deformation and stress of the structure.
Another purpose of the load analysis is to determine the initial pretension in the cable and membrane. Increasing in one direction and reducing the stress under external load, and stress in other directions, this requires that the initial tensile stress should be to a certain extent, and the pressure does not drop to the unfavorable load, that is, there is no wrinkle. Because the membrane structure of the membrane structure of the stand is relatively soft and the natural frequency is very low, it is easy to generate wind-induced vibration under the action of wind load, which leads to the destruction of the membrane material. If the initial prestress is applied too high, the coating of the film material will increase, and it will easily age, and the strength reserve will be small. The strength requirements of the stressed members are also high, which increases the difficulty of construction and installation. Therefore, the determination of initial prestress must be determined by load calculation.
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Tag: Shandong membrane structure landscape sketch
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