Net rack structure with irregular boundary

Abstract

The invention discloses a net rack structure with an irregular boundary. The net rack structure comprises a middle net rack, an edge net rack and a lower bearing structure, wherein the middle net rackis a honeycombed triangular pyramidal net rack; the edge net rack is annularly arranged on the outer edge of the middle net rack and is connected with the outer edge of the middle net rack; and the lower bearing structure is positioned below the edge net rack and is connected with the edge net rack and/or the middle net rack. According to the net rack structure with the irregular boundary, provided by the embodiment of the invention, the edge net rack is arranged on the outer edge of the honeycombed triangular pyramidal net rack, and the edge net rack is fixedly connected with the honeycombedtriangular pyramidal net rack, so that stable and effective connection nodes are formed for the honeycombed triangular pyramidal net rack by the edge net rack, the honeycombed triangular pyramidal net rack is horizontally restrained, and the whole honeycombed triangular pyramidal net rack is applicable to a point bearing system and is changed from a changeable system to a geometrically unchangeable system.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a grid structure with irregular boundaries. Background technique [0002] In the grid structure form, the honeycomb triangular pyramid grid is suitable for peripheral support and small and medium-span roofs because the web members and the lower chords are located in the same vertical plane, and the number of nodes and rods is relatively small. However, since the structure of the honeycomb triangular pyramid grid itself is a geometrically variable system, it is necessary to provide horizontal constraints with the help of peripheral supports to form a geometrically invariant system during design. In addition, the boundary requirements of the honeycomb triangular pyramid network frame are high, and the boundary is required to be mostly circular or rectangular, which leads to very dense boundary support of the honeycomb triangular pyramid, and the applicability is no...

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Problems solved by technology

In addition, the boundary requirements of the honeycomb triangular pyramid network frame are high, and the boundary is required to be mostly circular or rectangular, which leads to very dense boundary support of the honeycomb triangular pyramid, and the applicability is not strong, and it cannot meet the needs of large-span, irregular and point support networks. Frame structure design requirements

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