Construction method of single-layer reticulated shell structure awning with cantilever structure

Abstract

The invention discloses a construction method of a single-layer reticulated shell structure awning with a cantilever structure. The method comprises the following steps of firstly, constructing a plurality of layers of truss rings layer by layer to form a stable reticulated shell structure, integrally unloading, and then mounting a cantilever truss, so that the characteristics of an original structure are followed, and meanwhile, a large amount of investment of temporary supports can be reduced. In addition, compared with a traditional unloading manner with a sector as a unit, the unloading manner with an overall annular direction as an unloading unit has the advantages that stress conversion is more reasonable, deformation control is more scientific, the structural characteristics are fully considered, the stress conversion process is simpler, and higher safety is achieved. On the other hand, the temporary support can be repeatedly used, the utilization rate of the temporary support is increased, the construction measure cost is reduced, and the construction cost is saved. The problems that a large number of temporary supports need to be erected for a traditional single-layer cantilever reticulated shell structure, the repeated use rate of the temporary supports is increased through local unloading during construction and installation, and the deformation probability of the reticulated shell structure is increased are solved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for a single-layer reticulated shell structure shed with a cantilevered structure. Background technique [0002] The common spatial reticulated shell structure has the characteristics of light weight and large span, while the single-layer reticulated shell structure embodies this feature to the extreme, which is lighter and thinner, with larger openings, and of course it also puts forward higher requirements for construction. For the construction of the reticulated shell structure, the unloading link is the most important. [0003] The construction of traditional single-layer cantilevered reticulated shells requires the erection of a large number of lattice-type temporary supports. The number of supports is large, and it is difficult to reuse them repeatedly. On the other hand, in pursuit of a higher turnover rate of the supporting frame, less...

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Problems solved by technology

[0004] In order to overcome the defects of the existing technology, a construction method of a single-layer reticulated shell structure shed with a cantilevered structure is provided to solve the problem that a large number of temporary supports need to be erected in the traditional single-layer cantilevered reticulated shell structure. Local unloading increases the repeated use rate of temporary supports, which leads to an increase in the probability of deformation of the reticulated shell structure

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