Manufacturing method of multi-pipe tubular joint

Abstract

The invention discloses a manufacturing method of a multi-pipe tubular joint, which comprises the following steps of: arranging a contour line which is consistent with the projection of the profile of a multi-pipe tubular joint to be manufactured on the bottom surface of an assembly jig as a manufacturing platform; arranging a mine pipe for the multi-pipe tubular joint on the assembly jig, enabling the outer side lines of the primary pipe to be matched with the profile contour line of the primary pipe in the contour line to locate the primary pipe, and then temporarily fixing the primary pipe on the assembly jig; sequentially locating secondary pipes in secondary pipe installation positions on the primary pipe, and then temporarily fixing the located secondary pipes on the primary pipe; detecting the positions of the temporarily fixed secondary pipes; in case of conforming to the design positions of the secondary pipes of the multi-pipe tubular joint, welding the secondary fixed pipes on the primary pipe; and fixedly welding connecting parts between the primary pipe and secondary pipes in the in the installation positions between the primary pipe and the secondary pipes, thereby obtaining the multi-pipe tubular joint. Thus, the method realizes the manufacturing of the high-precision multi-pipe tubular joint in a simple mode.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a method for manufacturing a multi-pipe intersecting node. Background technique [0002] Intersecting joints are often used in steel structure engineering, which is a three-dimensional space structure formed by the intersection of multiple bars. Among the multiple intersecting rods, the main rod with thicker wall thickness and higher rigidity runs through, and the remaining secondary rods are directly welded to the outer surface of the main rod after being processed by intersecting lines. Because of its simple and clear appearance, no need to add joint components (such as welding balls, bolt balls, etc.), it has the characteristics of low cost and reasonable joint structure, and has become an ideal joint form in steel structure engineering. It has been successfully used in many domestic steel structure projects, such as Guangzhou Stadium, Capital Airport New Terminal, Shenzh...

AI Technical Summary

Problems solved by technology

[0003] Among the existing intersecting nodes, there is a kind of multi-branched multi-pipe intersecting node. This kind of intersecting node has many branches, all of which are located in space, and its stress distribution is relatively complicated. The existing manufacturing process cannot guarantee the The precise positioning and assembly of each branch of the intersecting joint cannot guarantee the bearing capacity of the multi-pipe intersecting joint. Therefore, the existing application projects for multi-pipe intersecting joints mostly use cast steel joints instead; and cast steel joints not only Increased cost input cannot reflect the economy of the original design node form (multi-pipe intersecting nodes); and the casting quality of large and complex cast steel nodes is difficult to guarantee

The material of complex cast steel joints is difficult to ensure uniformity, and microscopic defects are prone to occur; the material of cast steel joints is often different from that of the rods to be connected, which increases the risk of welding quality under poor construction conditions on site

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