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Super-long-span spoke-type suspend-dome structure based on flying-swallow-type truss arch

A suspension dome and spoke-type technology, which is applied in the field of super-large-span spoke-type suspension dome structure, can solve the problems of increased construction difficulty and achieve the effects of simplified construction, reasonable structural stress, and improved stability and bearing capacity

Active Publication Date: 2019-09-20
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the progress of human development, the span of the suspension dome increases continuously, and the stability of the single-layer reticulated shell structure continues to decline. If a double-layer reticulated dome is used instead, the construction difficulty will increase significantly

Method used

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  • Super-long-span spoke-type suspend-dome structure based on flying-swallow-type truss arch
  • Super-long-span spoke-type suspend-dome structure based on flying-swallow-type truss arch
  • Super-long-span spoke-type suspend-dome structure based on flying-swallow-type truss arch

Examples

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Embodiment

[0086] The National Olympic Gymnasium in a certain city adopts the ultra-large-span suspensive dome structure of the flying swallow truss arch. The gymnasium is circular with a diameter of 300 meters. The area is 113,354 m2, and the height of the center of the dome is 120 m.

[0087]24 columns are set along the circumference to support the ultra-large-span suspensive dome structure. Each column has a diameter of 8 meters. The outer octagonal inner circular double steel pipe concrete composite giant column is used. The outer octagonal steel pipe has a diameter of 8 meters and a wall thickness of 8 meters. It is a 45mm thick steel plate, the diameter of the inner circular steel pipe is 4.8 meters, and the wall thickness is 28mm thick steel plate. In the diagonal direction of the hexagonal outer steel pipe, eight connecting steel plates are welded to the octagonal outer outer steel pipe and the inner circular steel pipe. Between them, eight connecting steel plates have a thicknes...

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Abstract

The invention provides a super-long-span spoke-type suspend-dome structure based on a flying-swallow-type truss arch. A cantilever assembly construction technology of a super-long-span flying-swallow-type truss arch bridge is used for reference, a single-layer net shell is replaced with the flying-swallow-type truss arch manufactured through single-blade double-curved-surface ruled-surface-shaped variable-section steel pipes, thus the bearing capacity and stability of the suspend-dome structure can be enhanced, and the construction difficulty is lowered; an arachnoid suspend-dome cable system is constituted by a radial cable, a circumferential cable, a ring-exterior anchor cable and vertical supporting rods, a saddle paraboloid space cable system is constituted by an on-column rigid arch, a saddle paraboloid space cable, a curved suspension beam, an oblique boom, a tail balance cable and vertical supporting rods, and the two sets of self-balancing cable structure systems cooperatively work and make respective advantages complementary to each other; and a petal-shaped arch shell roof is constituted by a roof arched bracket, truss-type purlins and a petal-shaped roof shell, and thus the appearance is beautiful. The super-long-span spoke-type suspend-dome structure has the advantages that cantilever assembly construction is convenient, the carrying capacity is high, and structural stability is good, and the 200-300-m super-long-span suspend-dome structure can be constructed.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a construction technology of a dome structure, in particular to a super-large-span spoke-type suspensory dome structure based on a swallow-type truss arch. Background technique [0002] Suspension dome structure system is a long-span prestressed hybrid structure composed of an upper single-layer reticulated shell, a middle vertical strut, a lower radial cable and a hoop cable. Its overall stability is good and its construction is relatively difficult. Small, with very broad application prospects. [0003] In the single-layer reticulated shell suspensive dome structure, the cable-strut system is arranged in the lower part of the single-layer reticulated shell to form a prestressed composite structure system, which changes the force transmission path of the structure, improves the overall stability of the upper single-layer reticulated shell structure, and solves the problem of The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/32E04B7/08E04B7/14
CPCE04B1/32E04B7/08E04B7/14E04B2001/3217E04B2001/3229
Inventor 徐文平秦韬睿陈凯戴航孙逊韩重庆左江卢建峰徐嵘焦安亮
Owner SOUTHEAST UNIV
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