The spatial layout of the steel structure space frame structure, which is composed of multiple components according to a certain type of regular graphics and connected to each other according to the connection points, is called a space frame diagram structure. The two-layer or double-layer tablet-shaped space frame diagram structure is called a steel structure space frame or spherical space frame. It is generally made of seamless steel pipe or channel steel raw materials.
- The reticulated shell structure inclined plane space frame structure is called reticulated shell structure, which is divided into the single-sided reticulated shell and two-layer reticulated shell. The key materials of the space shell are steel space shell, wood space shell, concrete structure space shell, and so on. The key to the structure of the reticulated shell is a curved reticulated shell, single-leaf hyperboloid reticulated shell, round reticulated shell, hyperbolic parabolic reticulated shell, etc. The main features of the reticulated shell structure combine the key features of the rod system structure and the thin shell structure.
- Membrane structure engineering plastic film structure, also called textile structure, is a new type of large-span steel structure construction that has developed in the mid-twentieth century. It uses high-quality soft textiles as raw materials to support the membrane surface by the working pressure of the gas in the membrane, or use soft steel wire ropes or rigid support structures to create a certain pre-supporting force for the membrane, and then produce a certain bending rigidity that can cover large capacity.
- Suspension cable structure – The suspension cable structure is a type of structural management system composed of tensional cables as the basic load-bearing prefabricated components, and the cables are laid out in accordance with a certain regularity. The suspension bridge roof truss structure generally consists of suspension bridge system software, flat roof system software, and Support point system software consists of three parts. Most of the steel wire ropes used in the suspension structure are made of high-strength stainless steel wires with parallel plane stainless steel wire bundles, steel strands or steel nylon ropes, etc., and raw materials such as round steel, channel steel, hot-rolled strip steel, or thick steel plates can also be used. According to the cable layout and the number of superimposed layers, the suspension cable structure is divided into a single-sided suspension cable structure; a radial single-sided suspension cable structure; and a double single-sided suspension cable structure.
- Shell structures in thin-shell construction projects are mostly thin-shell structures (a case that considers t/R≤1/20 is defined as a thin-shell in academic research). The thin shell structure can be divided into rotating shell and moving shell according to the slope production; according to the construction materials, it can be divided into concrete structure thin shell, brick thin shell, steel thin shell, and polymer thin shell. The characteristic of the thin shell structure is that it has very good load-bearing characteristics and can bear very large loads with a small thickness.
The compressive strength and bending rigidity of the shell structure are mainly based on the rationalization of its geometric shapes, and the raw materials are immediately stressed to replace the bending internal work, thereby making full use of the development potential of the raw materials. Therefore, the shell structure is a structural form with high compressive strength, high bending rigidity, saving raw materials, that is, economic development and effectiveness.
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