Novel large-span repairable fabricated joint and fabricated method

Abstract

The invention discloses a novel large-span repairable fabricated joint and a fabricated method, and belongs to the field of large-span space structure engineering. The novel large-span repairable fabricated joint can be applied to a large-span single-layer spherical reticulated shell. The novel large-span repairable fabricated joint comprises a hollow ball and a plurality of round steel pipe connecting assemblies installed on the hollow ball. The round steel pipe connecting assemblies comprise repairable connecting pieces, short cantilever round steel pipe sections and common round steel pipesections, and the yield strength of the repairable connecting pieces is the lowest; and one ends of the short cantilever round steel pipe sections are installed on the hollow ball, first round steel plates are installed at the other end of the short cantilever round steel pipe sections, one end of the repairable connecting pieces are connected with the first round steel plates through first bolt groups, and the other ends of the repairable connecting pieces are connected with second round steel plates installed at one ends of the common round steel pipe sections through second bolt groups. Thewelding connection parts can be machined in a factory and can be pre-installed in the factory, on-site high-altitude welding is avoided, and the construction efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of large-span spatial structure engineering, in particular to a novel large-span repairable assembly node and an assembly method that can be applied to large-span single-layer spherical reticulated shells. Background technique [0002] The long-span space structure is more and more favored by the construction industry due to its light structure, beautiful shape and various forms, and is widely used in public places such as airports, gymnasiums and swimming pools; however, the construction of the long-span space structure is difficult and the construction period is long. Problems such as high construction costs have become problems hindering its development, and the large-span spatial structure has therefore increasingly become a manifestation of a country's architectural technical strength. [0003] At the same time, earthquake disasters will cause great harm to buildings and bring great property losses. In...

AI Technical Summary

Problems solved by technology

[0004] The most important thing in the long-span spatial structure is the node, which plays the role of connecting members, meeting and transmitting force; at present, most of the large-span spatial structure nodes are welded hollow ball joints and bolted ball joints, and welding hollow ball joints requires high-altitude Welding is very difficult to construct, and is greatly affected by the quality of high-altitude construction welds. It is difficult to achieve standardized construction and mass production, and does not meet the standards of green buildings vigorously advocated by the state; the bolt ball joints have poor bending resistance and high processing accuracy requirements. The installation and processing process is complicated, and the phenomenon of "false screwing" is easy to appear

[0005] At present, there are few repairable nodes in large-span spatial structures. Under this background, the present invention proposes a new type of large-span repairable assembled node that can be applied to large-span single-layer spherical reticulated shells.

Images