Large-space metal spherical lattice shell structure used for device storage and transportation, and construction method

Abstract

The invention relates to a large-space metal spherical roof plate lattice shell structure suitable for device storage and transportation, and belongs to the field of civil engineering mechanics and mechanical engineering. According to the metal spherical roof plate lattice shell structure, a 32-face body variant plane base element serves as a foundation, and topology mapping conversion is conducted on the spherical face so that the positions of space spherical surface nodes can be obtained. A spherical lattice shell roof plate is structurally composed of body node bases, base node bases, hinge joint connecting rod pieces and foam metal thin roof plate bodies, the node bases and the hinge joint connecting rod pieces are connected through threads, and rapid and accurate installation is achieved. The whole lattice shell structure is fastened to a base beam and a ground foundation by means of base beam foundation bolts through anchor hole plates of the base node bases, and therefore the performance for bearing all outward loads is improved for the spherical lattice shell. Field installation can start from ground erecting, connection is sequentially conducted upward, a hydraulic jacking machine supports the top of the lattice shell, external expansion installation is sequentially conducted from top to bottom, construction is quite convenient, and the large-space metal spherical roof plate lattice shell structure can be used for large-scale engineering construction, device storage and transportation, and emergency rescue and relief work centers.

Description

technical field [0001] The invention is a theoretical design method and structural construction technology of a hexagonal configuration metal spherical crown reticulated shell established based on topology, space geometry and bar system structure, and belongs to the fields of civil engineering mechanics and mechanical engineering. Background technique [0002] The large-span space reticulated shell structure has the characteristics of large free space and few internal supports, which is suitable for storing large-scale mechanical equipment and meeting the requirements of vehicles with large turning radius. Spherical reticulated shell structures for large-scale exhibition halls and long-span stadium facilities, such as the Montreal Exhibition Hall in Canada ( figure 1 ) and the long-span spherical double-layer reticulated shell structure in Quebec City Park, Canada ( figure 2 ), is a classic example of a long-span reticulated shell structure. [0003] Israeli scholar Hanao...

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Problems solved by technology

However, because this method does not carry out further topology optimization, the design calculation is complicated, and there are too many types of structural node members; at the same time, the components in the single-layer spherical reticulated shell structure of the components of this method are connected by welding process, which has a long construction period and poor welding quality. and accuracy cannot be guaranteed, and cannot be directly used in the field large-span reticulated shell structure

[0004] At present, the inspection and maintenance, material storage and transportation, emergency rescue and medical assistance of many large-scale equipment need to be carried out in the field under the conditions of wind, snow and rain, and need to meet the requirements of rapid, stable and reliable construction. However, the construction and installation process is complicated by the above-mentioned welding process construction method. The construction period is too long, the cost is high, and the quality of on-site welding is difficult to guarantee

In addition, the sagittal height of the hemispherical reticulated shell structure is equal to the radius of the spherical surface, and in many cases (such as emergency rescue, medical assistance) does not require a large height, if the hemispherical reticulated shell structure is still used, it will cause waste of space and materials. At the same time, the wind receiving area of ​​the structure is increased, which increases the design cost and construction cost

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