Adjustable spherical joint of rib ring type cable dome structure

Abstract

The invention discloses an adjustable spherical joint of a rib ring type cable dome structure. The spherical joint consists of a spherical shell center body, a guide rail type lug plate, and a conicaljoint conversion element; a hole matched with the guide rail type lug plate in shape is formed in the surface of the spherical shell center body; the guide rail type lug plate is provided with a pinhole for being connected with a tension element; the guide rail type lug plate is clamped into a clamping groove of the spherical shell center body through 90-degree rotation and is fixed through a guide rail attached to the inner circle of a spherical shell; the bottom end of the spherical shell adopts a plane design and can be connected with the conical joint conversion element; and a slotted hole with a thread is formed in the lower surface of the conical joint conversion element for being connected with a pressed element. According to the adjustable spherical joint of the rib ring type cable dome structure, on the premise that the stress performance is guaranteed, different combinations of the different clamping grooves and the guide rail type lug plates provide a plurality of angle free combination modes for the joint, so that the adjustable performance of the joint is achieved, and the hollow spherical shell design reduces the dead weight and the assembly error of the joint.

Description

[0001] Technical field [0002] The invention relates to an adjustable spherical joint of a rib-ring cable dome structure, in particular to an adjustable spherical joint of a rib-ring cable dome, and its application range includes a cable rod structure and a model structure. Background technique [0003] The architectural cable-strut structure has attracted much attention for its lightness, reasonable force and graceful shape. In the past 20 years, my country's building cable-strut structure engineering demand and actual engineering quantity have achieved leapfrog growth. Structural systems such as structures have been popularized and applied in large-scale practical projects in my country. In this context, the design of joints has gradually become a key link in the engineering design of cable-strut structures. The joints not only directly affect the aesthetics of the building and the rationality of the structure, but are more closely related to the cost of the project, constr...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of node form that is used for the connection of cable bar in the rib ring type cable dome structure, namely the adjustable spherical joint of the rib ring type cable dome structure, to overcome the various types of nodes in the rib ring type cable dome structure, The shortcomings of complex joint structure, inconvenient construction and assembly of joints, and small application range of joints promote the standardization and adjustment of rib ring cable dome structural joints.

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