Super-long-span dome structure

Abstract

The invention discloses a super-long-span dome structure. The super-long-span dome structure comprises multiple variable-cross-section midspan dual-limb cavity giant arches with a joint rotating shaft, upper limbs and lower limbs in the variable-cross-section midspan dual-limb cavity giant arches define cavity structures, two energy dissipating vibration reducing devices are symmetrically mountedin each cavity structure, the energy dissipating vibration reducing devices in the variable-cross-section midspan dual-limb cavity giant arches are located on the same circumference, branch limbs of the upper limbs and the lower limbs are fixedly connected with a first ring truss, at least two giant variable-cross-section space trusses are evenly mounted in an annular interval between the variable-cross-section midspan dual-limb cavity giant arches, the upper end of the giant variable-cross-section space trusses are fixedly connected with a first ring truss, the first ring truss is covered with a first dome surface single-layer net shell, each space is covered with a second dome surface single-layer net shell fixedly connected with the first ring truss, due to the dome structure, the stress property is greatly improved, the structure rigidity is uniform, joint configuration is relatively simple, and in the building process, large geometrically nonlinear deformation cannot be generated.

Description

technical field [0001] The invention belongs to the technical field of large-span space structures, and relates to a super-long-span integral structure, in particular to a super-long-span integral dome structure with a span of 800-1000m. Background technique [0002] In order to resist harsh natural conditions such as hurricanes, polar regions, deserts, and climate change, protect urban residents from environmental degradation and natural disasters, and meet the requirements of energy conservation and emission reduction in the process of urban development, the "urban dome" derived from the super-long-span spatial structure "The concept came into being. [0003] At present, the system research on ultra-long-span structures is in its infancy. For the selection of 800-1000m-level structure systems, it is basically explored on the basis of existing large-span space structure systems and some beneficial attempts have been made. The large-span spatial structural systems in the pr...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a dome structure with a super large span of 800-1000m, and avoid the shortcomings of the existing structural system that the irrationality of the mechanical performance gradually becomes prominent with the increase of the span

Images