Do you know the shape of membrane structure architecture?

Membrane structure architecture has a lot of advantages and characteristics, a lot of local buildings are built by membrane structure, can be designed and appearance changes through the computer, it can make what kind of shape? Today, I will tell you about the relevant knowledge of membrane structure architecture.One of the outstanding features of membrane structure is its variety of shapes and infinite possibilities of curved surface. For the air bearing air film structure, the surface after inflation is mainly a spherical or cylindrical surface, there may not be too much choice. For the membrane structure supported by a cable or skeleton, the curved surface can be arbitrarily changed according to the imagination of the architect.

The ever-changing shape of membrane structure is highlighted in the expositions held over the years, in these expositions, large and small exhibition halls, all with novel and strange shapes to attract the audience, and membrane structure can be used to achieve this purpose.

For example, at the 1985 International Science and Technology Fair in Ibaraki Prefecture, Japan, the entrance was an arched gate made of colorful membranes. The membrane structure is particularly eye-catching in the numerous exhibition halls, such as the Firebird Pavilion, which supports the flat concave and convex roof with a skeleton composed of steel beams and cables, the American Pavilion, which hangs the silver roof with a towering mast, and the Electric Power Pavilion, which hangs 25 peaked tents with a central tower. At night, the reflection of lights is like a burning flame. Corridors, toilets have also appeared with membrane material composition of different forms of architectural sketches, great view.

In terms of shape, it is very important for architectural designers, the general structure of the building, its shape is often determined by the architect, the membrane structure is different, first of all, its deformation is larger than the general structure, and then its shape is gradually formed in the construction process, there is a shape to determine the problem, the need for the participation of structural engineers. To determine the initial shape of the structure under the initial load, that is, the equilibrium position of the structural system under the action of membrane dead weight (or containing cable) and prestress.

In the preliminary design stage, the rough geometric shape is set according to the building requirements first, and then the prestress is applied to the membrane surface to make it withstand the tension, and its shape is changed accordingly. After constant adjustment of the prestress, the ideal geometric shape and stress distribution can be obtained at last.

The cable net in the suspension cable structure also has the same shape determination problem as the membrane structure. For example, the German pavilion in the Montreal Exposition in 1968 and the main stadium in the Munich Olympic Games in 1972 both have special shapes that need to be determined, which can only be solved with the help of the scale model. Early membrane structures often used this method, materials from the simplest soap film, to fabric or steel wire, because the measurement error on the small scale model is not enough to ensure the correct geometry of the surface, so it can only serve as a reference for the full size of the building shape. But it is also an effective way to provide a visual image for the designer.

With the continuous progress of computer technology, the shape of membrane structure is more determined by computer. In the theory of membrane structure design, there is a special research topic -- formfinding. In order to find a reasonable geometric shape, the initial shape of the membrane structure can be determined by several iterations of the computer.

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Membrane structure design breaks the traditional approach of building first, then structure, and requires the close combination of architectural design and structure design. During the design process, architects and structural engineers sit together to determine the shape of the building and perform the necessary calculations and analyses. At this time, the design of the building's plane shape, elevation requirements, fulcrum setting, material type and prestress size will become mutually restrictive factors, a perfect design is the result of the above contradictions.

Through the above, we know that membrane structure building can be ever-changing, the development of science and technology makes membrane structure building development more rapidly, to learn more about membrane structure related knowledge, you can pay attention to the Wanhao space structure public number.