Sunflower-shaped cable dome structure

Abstract

The invention discloses a sunflower-patterned cable dome, comprising a center inner ring girder, a stiffen member, a hoop cable, a ridge cable, a vertical strut, an inclined cable and a boundary ring girder; wherein, the center inner ring girder, the stiffen member, the ridge cable and the boundary ring girder form a sunflower-patterned net; one end of the stiffen member is hinged with the center inner ring girder, and the other end is hinged with one end of the ridge cable in the most inner circle; one end of the ridge cable in the most outer circle is anchored with the boundary ring girder; the upper end of the vertical strut is hinged with the ridge cable, and the lower end is hinged with one end of the inclined cable and the hoop cable, while the other end of the inclined cable is hinged with the ridge cable; the inclined cable in the most outer circle is anchored with the boundary ring girder; the hoop cable is closed along the hoop direction. The sunflower-patterned cable dome has the advantages of beautiful structure, excellent stress performance, improved bearing capacity and smooth transitional profile since the ridge cable easy to exit working of the prior art is changed into the stiffen member and the upper inner draw ring is changed into the inner ring girder.

Description

technical field [0001] The invention relates to the field of architecture, in particular to a sunflower-shaped cable dome structure. Background technique [0002] The cable dome structure is a new type of spatial structure, which embodies Fuller's idea that "the island of pressure exists in the ocean of tension", and is a full-tension system with extremely high structural efficiency. The sunflower-shaped cable dome has light weight and high stability, but when the load increases to a certain extent, the notochord in the center is easy to withdraw from work, and the rate of increase in structural displacement is significantly accelerated. To keep the notochord in the center from withdrawing from work, it must Greatly increasing the prestress of the ring cable will lead to a significant increase in the internal force of other parts of the structure, and when the prestress of the outer ring cable increases to a certain value, its effect will gradually weaken. Therefore, how to...

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Problems solved by technology

The sunflower-shaped cable dome has light weight and high stability, but when the load increases to a certain extent, the notochord in the center is easy to withdraw from work, and the rate of increase in structural displacement is significantly accelerated. To keep the notochord in the center from withdrawing from work, it must Greatly increase the prestress of the hoops, resulting in a significant increase in the internal forces of other parts of the structure, and when the prestress of the outer hoops increases to a certain value, its effect gradually weakens

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