One-piece two-way low-friction cable node of single-layer reticulated shell structure with suspension cables

Abstract

The invention discloses an integrated two-way low-friction drag stay rope node of a suspension rope single-layer latticed shell structure. The node comprises A direction lug plates and at least one A direction pulley arranged along rigid rods in one direction of a rigid latticed shell, and B direction lug plates and at least one B direction pulley arranged along rigid rods in the other direction of the rigid latticed shell, wherein the A direction pulleys are rotationally connected to the A direction lug plates arranged at the two sides thereof through A direction pin shafts; the B direction pulleys are rotationally connected to the B direction lug plates arranged at the two sides thereof through B direction pin shafts; the A direction lug plates and the B direction lug plates are synchronously and fixedly connected above or below the rigid latticed shell; and stay ropes in two directions are respectively and tightly bonded below the corresponding A direction pulleys or B direction pulleys. The node uses the fit between the stay ropes and the pulleys for achieving the lower support or upper suspension effect on the rigid latticed shell, so that the reliable connection between the stay ropes and the rigid latticed shell is guaranteed, and the prestress application of the stay ropes in the construction tensile process is guaranteed.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to an integrated two-way low-friction drag cable node of a single-layer reticulated shell structure for suspension cables. Background technique [0002] Suspension structure is a structural form with a long history, and suspension bridges have existed in ancient times. The application of suspension structure in construction engineering began in the early 20th century, and developed rapidly after the 1950s. The roof of the Rayleigh Gymnasium in the United States built in 1953 uses a saddle-shaped orthogonal cable net with two inclined parabolic arches as edge components. The force is clear and the material strength of the cables is fully utilized. It is considered to be the first in the world An excellent modern long-span cable-net structure. Subsequently, the suspension cable structure was applied to gymnasiums, airports and other buildings. Influential projects i...

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Problems solved by technology

[0003] However, the suspension cable structure also has its shortcomings. First, the suspension cable structure needs a strong boundary to resist the tension of the cable. In addition, the suspension cable structure is not convenient for hanging other temporary loads, which is not conducive to the multi-functional use of the building.

[0004] In view of the above problems, the applicant proposed a new structural system combining the suspension cable structure and the single-layer reticulated shell structure, that is, the single-layer reticulated shell structure of the suspension cable. Insufficient structure, but in this structure, it is necessary to effectively solve the problem of the connection between the cable and the rigid reticulated shell and the application of the prestress of the cable during the construction tensioning process

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