What are the requirements for designing a large-span tarpaulin tension structure

Tarpaulin manufacturers have a variety of products, and if it is a large-span tarpaulin, it is necessary to select a reasonable cable fulcrum and curvature in the tension structure, and determine the appropriate prestress value. When designing this tarpaulin, if there is no external load, the sum of the normal components of all cable tensions in any direction must be equal to zero, which requires that the tent's two sets of cables must have opposite curvatures. Under any load, it must be kept in tension, and the cable must have sufficient internal tension, that is to say, appropriate prestressing must be selected to form a spatial prestressed cable grid structure, which will not work under any load combination. A state of relaxed tension is not allowed. In order to ensure the geometric stability of the shape, the most reasonable structure is to arrange the tension cables along the main tension line of the membrane structure. Also, when determining the ratio of the radial internal force to the hoop internal force, the resulting curvature should have a sufficient slope to avoid the accumulation of rain and snow, even in the places where the deflection of the surface is greatest.

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