The planning of membrane structure facilities mainly includes four major issues: shape planning, initial balance shape analysis, load analysis, and cutting analysis. Through figure planning, the building plane shape standard, three-dimensional modeling, clearance volume, coordinates and structural forms of each control point are recognized, and membrane materials and construction plans are selected. Initial equilibrium shape analysis is called form finding analysis. Because the membrane material itself has no compression and bending stiffness, and the main shear strength is very poor, its stiffness and stability need to rely on the curvature change of the membrane surface and the prestress between them. For the membrane structure, there is no stress free situation at any time, so the shape of the membrane surface must meet the mechanical balance under certain boundary conditions and certain prestress conditions, Based on this, load analysis and clipping analysis are carried out. The main form finding methods of membrane structures are dynamic relaxation method, force density method and finite element method. The loads considered for membrane structures are generally wind load and snow load. The deformation of membrane material under load is large, and the load distribution is also changing with the change of shape. Therefore, to accurately calculate the deformation and stress of the structure, several nonlinear methods should be used. Membrane structure landscape

Long life span of membrane structure engineering: membrane structure buildings belong to half buildings. Now the early membrane structure buildings have been used for more than 30 years in the world and are still in use. Its steel skeleton only needs to be well coated and protected in time, and then it can be used durably. The membrane material used for building is a composite material with outstanding mechanical function, high strength and aging resistance. As long as the structure planning is reasonable, the service life of membrane structure buildings can be up to 50 years.

The membrane structure has good self-cleaning property: the membrane material used for building has no static electricity on the surface and no adsorption force to dust, so it is not easy to get stuck with dust. Even if a little dust falls, it is easy to be removed by wind and rain. Therefore, membrane structure buildings always appear in our vision with bright and clean appearance.

The selection of membrane materials depends largely on the function of membrane structure buildings, fire protection requirements, size of the site, number of life, planning and amount of investment. Therefore, the following points should be paid attention to when selecting membrane materials:

(1) The strength of the membrane, as well as the tensile and tear strength. The area and prestress of the membrane structure should be considered first to select the membrane materials with appropriate parameters, so that the membrane structure materials can meet the needs of the membrane structure building without waste.

(2) Durability and anti-aging function, self-cleaning function and various climate functions of habits.

(3) As for the requirements of fire protection, the first thing is to select the membrane structure material as flame retardant or non flame retardant material. This depends on the function of the membrane structure building and the grading rules of the fire resistance of the membrane structure materials by the environment of its location.

(4) The price of membrane materials is a key issue. Because when customers choose membrane materials, it is also important that whether the price of membrane materials exceeds the budget, in addition to whether the functions of membrane materials meet the requirements of membrane structure buildings

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