Prefabricated large-span triangular steel truss structure

Abstract

The invention discloses a prefabricated large-span triangular steel truss structure, comprising a first upper chord circular tube, a second upper chord circular tube, a lower chord circular tube, first inclined web member units, second inclined web member units and upper chord connecting rods, wherein the upper chord connecting rods, which are continuously distributed at intervals, are arranged between the first upper chord circular tube and the second upper chord circular tube; the first inclined web member units and the second inclined web member units are arranged among the first upper chord circular tube, the second upper chord circular tube and the lower chord circular tube, wherein the first inclined web member units are continuously distributed at intervals, and the second inclinedweb member units are arranged adjacent to the first inclined web member units; the first upper chord circular tube and the upper chord connecting rods are fixed with the first inclined web member units and the second inclined web member units respectively by means of hoops and connecting plates welded on the hoops, the second upper chord circular tube and the upper chord connecting rods are fixedwith the first inclined web member units and the second inclined web member units respectively by means of the hoops and the connecting plates welded on the hoops, the lower chord circular tube is fixed with the first inclined web member units and the second inclined web member units separately by means of a hoop and a connecting plate welded on the hoop, so that the assembly of the structure is realized; welding does not need to be performed in a construction site, so that manpower and material resources are saved, the assembling efficiency is increased, the construction period is shortened,and the economic benefit is improved.

Description

technical field [0001] The invention relates to the technical field of large-span structures, in particular to an assembled large-span triangular steel truss structure. Background technique [0002] As we all know, the triangular cross-section space steel pipe truss is one of the main forms of long-span civil engineering structures. It has a simple and beautiful shape, a small amount of steel, and good applicability. As my country's assembly process continues to advance and the concept of environmental protection is deeply rooted in the hearts of the people, more and more large-span structures adopt the structural form of triangular-section space steel pipe trusses, which requires a large number of on-site welded pipe trusses. The quality of welded pipe trusses is not good enough, and the extensive use of pipe trusses has caused many engineering accidents. At the same time, the construction period of welded pipe trusses is long, which seriously affects the economic benefits o...

AI Technical Summary

Problems solved by technology

As my country's assembly process continues to advance and the concept of environmental protection is deeply rooted in the hearts of the people, more and more large-span structures adopt the structural form of triangular-section space steel pipe trusses, which requires a large number of on-site welded pipe trusses. The quality of welded pipe trusses is not good enough, and the extensive use of pipe trusses has caused many engineering accidents; at the same time, the construction period of welded pipe trusses is long, which seriously affects the economic benefits of enterprises

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