Large-span cable net structure supported by self-balancing arch truss

Abstract

The invention relates to the technical field of large-span structures, in particular to a large-span cable net structure supported by a self-balancing arch truss. According to the structure, a framework is formed by utilizing a small number of transversely-arranged self-balancing arch trusses and longitudinally-arranged longitudinal connecting trusses, cable net systems among the self-balancing arch trusses and the longitudinal connecting trusses are supported, an efficient large-span structure is formed, the number of steel components is greatly reduced, and installation and construction worksuch as on-site welding, hoisting and sliding is greatly reduced. The structure is supported on concrete columns or steel columns and can provide enough space for equipment operation, arch truss supports slide in the transverse direction, transverse deformation of the arch trusses is restrained through transverse steel cables at the supports, the arch trusses have the stress characteristic of thearch trusses under the action of a downward load, and the arch trusses do not generate transverse horizontal thrust on lower columns.

Description

technical field [0001] The invention relates to the technical field of large-span structures, in particular to a large-span cable-net structure supported by a self-balancing arch truss. Background technique [0002] At present, coal sheds and stockyards are facilities widely used in electric power, steel and other fields, and their main function is to cover coal stockyards and ore stockyards to reduce environmental pollution. [0003] In terms of structural system, large-span coal sheds and stockyards mainly adopt prestressed arch truss structures. The standard arch truss 3 and the gable arch truss 6 are arranged horizontally in this structure. The standard arch truss can be combined with prestressed steel cables to form a prestressed arch truss. The gable arch truss 6 is supported by the gable column 7 . Longitudinal connection trusses are arranged along the longitudinal direction, and the support system is formed by the longitudinal connection trusses 5 and supporting mem...

AI Technical Summary

Problems solved by technology

The advantage of this structural form is that the design is simple, but there are the following disadvantages: the distance between the trusses is between 12m-18m, the distance is small, the number of components is large, the types of cross-sections are large, the number of foundations is large, and the amount of on-site welding and installation is large. Long installation period and high project cost

In addition, the floor-to-ceiling prestressed arch truss has limited headroom height at the arch foot, which affects the operation of equipment (such as gantry bucket wheel machine)

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