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Foldable cable bar structural unit based on hexagonal geometry

A structural unit and hexagonal technology, applied in the direction of building construction, construction, etc., can solve the problems of different structural rigidities, etc., and achieve the effects of high material utilization, good structural rigidity and mechanical performance, and good reliability

Active Publication Date: 2016-02-03
SOUTHEAST UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Although there have been some prestressed cable-strut structures based on regular hexagonal geometry, due to the difference in geometric configuration and initial prestress of the structure, the stiffness of different structures is also different, and there are still many problems in the application of actual engineering. big difference

Method used

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  • Foldable cable bar structural unit based on hexagonal geometry
  • Foldable cable bar structural unit based on hexagonal geometry
  • Foldable cable bar structural unit based on hexagonal geometry

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0017] 1. Component connection relationship and classification.

[0018] Such as figure 1 and figure 2 As shown, the foldable cable-strut structure unit of the present invention includes 6 hinge nodes, 1 pivot node, 3 stay cables and 6 compression rod members. The six hinge nodes A, B, C, D, E and F are respectively located at the six vertices of a two-dimensional hexagonal geometry sorted counterclockwise, and the pivot node is located at the center point G of the hexagonal geometry. figure 2 The thick line in the middle indicates the pressure rods. There are 6 pressure rods in total. The two ends of the rod are respectively connected with the other two sets of nodes at opposite vertices of the hexagon, and are located inside the hexagon. The four first-class compression bars are respectively a first-class compression bar 101 connecting nodes A and B, ...

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Abstract

The invention discloses a foldable cable bar structural unit based on hexagonal geometry. The structural unit is composed of six hinging nodes, one pivoting node, three stay cables and six pressure bars. The six hinging nodes are respectively located at the six vertexes of a two-dimensional hexagonal geometry, and the pivoting node is located at the central point of the hexagonal geometry. The four first-type pressure bars are symmetrically arranged on the two sides of the hexagon, and coincide with the four edges of the hexagon. The other two second-type pressure bars are located inside the hexagon, and form a scissor-like hinge through the pivoting node. The three stay cables are located inside the hexagon, and the six hinging nodes are connected in pairs by the three stay cables. When all the stay cables are pre-tensioned, pre-pressure exists in all the pressure bars, and the structural unit is a self-balancing cable bar system. When the first-type stay cable or the third-type stay cable is loosened, the structural unit can be folded to form a compact bundle shape. The foldable cable bar structural unit has a good application prospect in foldable / scalable cable bar structural systems.

Description

technical field [0001] The invention is a method applied to architectural structure design and modern space structure design, in particular to a foldable cable bar structure unit. Background technique [0002] The prestressed cable-strut structure system is a new prestressed self-balancing system composed of compression rods and cables. The structural stiffness is provided by the self-balancing prestress between the tension unit and the compression unit. Before applying the prestress, The structure has almost no stiffness, but due to the existence of self-stress, the structure acquires stiffness and becomes a load-bearing structure under a specific geometric state, which is the essential feature that distinguishes the cable-strut structure system from the traditional structure. It is precisely because of this essential feature that the internal force and shape of the prestressed cable-strut structure are highly correlated, showing strong geometric nonlinearity and shape adju...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/344
Inventor 陈耀冯健
Owner SOUTHEAST UNIV
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