Method of mounting main and auxiliary trusses of tubular truss structure in intersecting manner

Abstract

The invention provides a method of mounting main and auxiliary trusses of a tubular truss structure in intersecting manner. The method comprises the steps of 1, producing telescopic tubes to sleeve chord members of auxiliary trusses; 2, determining a positional elevation of two main trusses, lifting the chord members of the auxiliary trusses to pre-mounting positions via lifting equipment, and sleeving one end of each chord member of the auxiliary trusses with one telescopic tube; 3, welding the end, sleeved with no telescopic tube, of each chord member of the auxiliary trusses to one chord member of the corresponding main truss after positioned intersecting, welding the telescopic tubes to the chord members of the auxiliary trusses according to the mounting positions on the chord membersof the main trusses, welding the weldments to the chord members of the main trusses after positioned intersecting, and finishing mounting. The chord members of the main and auxiliary trusses can be mounted and positioned in an aerial operation environment more precisely, chord member mounting speed is evidently increased, construction period of the whole truss structure is shortened, constructionquality is guaranteed, and construction cost can be decreased.

Description

technical field [0001] The invention relates to the technical field of space truss structure construction, in particular to a method for intersecting primary and secondary trusses of a pipe truss structure. Background technique [0002] The truss structure is often used in public buildings such as large-span workshops, exhibition halls, gymnasiums and bridges. The pipe truss is a plane or space structure with triangular units composed of straight rods. The truss members mainly bear axial tension or pressure, so that they can By making full use of the strength of the material, it can save material, reduce self-weight and increase rigidity compared with solid web beams when the span is large. [0003] In the common pipe truss structure in the prior art, its cross-sectional unit form is usually an inverted triangle, in which three main truss chords are connected by webs to form an inverted triangle structure, forming a pipe truss unit, and then through the long straight seconda...

AI Technical Summary

Problems solved by technology

However, although the above-mentioned method meets the requirements of high-altitude pipe truss intersecting construction to a certain extent compared with the original technology, it has been found in long-term practice and construction that using the above-mentioned artificial or inverted chain In the way of pulling, after the secondary truss chord is fed into the installation position, the gap between the openings is too large, and the phenomenon of inclination and unevenness of the opening is prone to occur, which seriously affects the installation quality of the intersecting construction, which in turn leads to the overall failure of the truss structure. Construction quality is difficult to guarantee

[0006] In view of this, the existing technology should be improved to solve the technical problems of the low installation efficiency of the primary and secondary truss chords and the difficulty in ensuring the installation quality in the existing technology

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