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Steel net frame

The structure can be divided into flat and curved grids according to the shape. Under normal circumstances, the flat plate net frame is called the net frame; The curved network frame is called reticulated shell, as shown in FIG. 1.7. Reticulated shell structure is a curved type of grid structure, which has the characteristics of both rod structure and thin shell structure. It has reasonable force and large coverage span. It is a kind of space structure which has been paid much attention at home and abroad, developed the fastest in half a century, and has a broad prospect of development. The reticulated shell structure has a beautiful architectural shape, which can give designers full creative freedom in terms of architectural plane, shape and form. The building plane can adapt to various shapes, such as circle, rectangle, polygon, triangle, fan and various irregular planes. In terms of architectural appearance, a variety of curved surfaces can be formed, such as spherical surface, elliptical surface and rotating paraboloid roof. Structurally, the lattice shell force is reasonable, can achieve a larger span, due to the diversity of lattice shell surface, structure designers can make the lattice shell force uniform through careful surface design; In construction, small components are prefabricated in the factory to achieve industrial production. Field installation is simple and fast, without the need for large equipment, and the comprehensive technical and economic indicators are good.