Secondary cable net cable dome structure
A cable dome and cable net technology, applied in the direction of roofs, building components, building structures, etc., can solve the problems of small spanning capacity of rigid roofs, and achieve the effects of good overall stability, wide selection range, and enhanced vertical stiffness.
Inactive Publication Date: 2012-11-28
SOUTHEAST UNIV
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Problems solved by technology
However, the spanning capacity of the rigid roof is small, and it is necessary to add a secondary structure to support the roof and transfer the roof load to the main structure of the cable dome, which puts forward higher requirements for the spanning capacity of the secondary structure
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[0019] To design a secondary cable-net cable dome structure supporting a rigid roof, the basic steps are as follows:
[0020] 1) First select the rigid roof material, and preliminarily determine the basic size of the planar orthogonal secondary cable grid according to its spanning capacity, that is, the distance between the radial secondary cable and the circumferential secondary cable.
[0021] 2) According to the rigid roof material and the allowable deformation value of the secondary cable network, the span and initial prestress of the radial and circumferential secondary cables are preliminarily determined.
[0022] 3) Preliminarily determine the basic size of the grid of the main structure according to the spans of the radial secondary cables and the circumferential secondary cables, that is, the spans of the notochor and hoop cables in the main structure.
[0023] 4) Preliminarily determine the number of rings and radial widths of the main structure according to the span...
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The invention discloses a secondary cable net cable dome structure, which consists of a ridge cable, a broken line stay cable, an upper ring cable, a lower ring cable, an annular middle pressure lever, a radial middle pressure lever, a corner pressure lever and a secondary cable net. The secondary cable net cable dome structure can support a rigid roof, is a novel full-tension structure similar to a cable dome, and belongs to the field of spatial structures of civil engineering buildings. The secondary cable net is formed by orthogonal radial secondary cable and annular secondary cable planes, big grids of the upper part of a main structure consisting of the ridge cable and the upper ring cable are divided into small grids, and nodes of the secondary cable net are directly used as fulcrums of the rigid roof. The secondary cable net is supported on the surrounding ridge cable and the upper ring cable, and the supporting rigidity of the ridge cable and the upper ring cable is reinforcedthrough the annular middle pressure lever and the radial middle pressure lever. Through the secondary cable net cable dome structure, the design idea of the full-tension structure is kept, the advantages of a cable dome structure are succeeded, the integral stability is better, and the selective range of the roof material is wider; and the structure can be popularized and applied.
Description
technical field [0001] The invention discloses a new type of full-tension structure—a secondary cable-net cable dome structure, which consists of a ridge cable, a broken-line oblique cable, an upper ring cable, a lower ring cable, a circumferential middle pressure rod, a radial middle pressure rod, an angle It is composed of pressure rods and secondary cable nets, on which rigid roofing materials such as glass panels and color steel plates can be laid. It belongs to the field of space structure in civil engineering construction. Background technique [0002] Conventional cable dome is a spatial full-tension structure composed of ridge cables, oblique cables, ring cables and compression rods. It has a simple configuration, strong spatial spanning ability, light weight, and high headroom. It has been popularized and applied in China. Due to the requirements of architecture and structure, the grid size between the components of the cable dome is relatively large, which require...
Claims
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IPC IPC(8): E04B7/14
Inventor 罗斌郭正兴
Owner SOUTHEAST UNIV