Spherical joint sliding support with effect of relieving internal force of guy cable

Abstract

The invention discloses a spherical joint sliding support with the effect of relieving internal force of a guy cable. The spherical joint sliding support comprises a lower part supporting structure, a pre-embedded base plate, a reverse T-shaped support, a plurality of pre-embedded reinforcing steel bars, a sliding spherical joint, a plurality of columnar rolling bearings, an anchoring device, a plurality of damping springs and a support. The spherical joint sliding support with the effect of relieving the internal force of the guy cable, provided by the invention, has the following advantages: 1) high material utilization rate: after the spherical joint sliding support is installed, the internal force change of the guy cable on a main structure is little, the characteristic of strong pulled capacity of the guy cable can be fully exerted; 2)convenience for construction: as a guy cable through hole is reserved on the reverse T-shaped support and the support can serve as a tensioning support of a jack, the tensioning of the guy cable is facilitated; 3) high safety: after a building is put into use and is subjected to dynamic catastrophic loads, such as a violent earthquake, a typhoon and the like, the shrinkage of the damping springs can ensure that the guy cable is not broken when a main structure deforms largely and the hidden trouble of collapse of the main structure due to breaking of the guy cable is eliminated.

Description

technical field [0001] The invention belongs to the technical field of prestressed steel structures of building structures, and in particular relates to a spherical joint sliding bearing capable of easing the internal force of a cable. Background technique [0002] In recent years, large-span space steel structures have been widely used. Among them, prestressed steel structures have attracted the attention of designers because of their reasonable force, high rigidity, and light weight. They are widely used, such as the terminal building of Pudong International Airport The first phase and the Guangzhou International Convention and Exhibition Center all adopted long-span stringed truss roofs, and the VIP Hall of Tianjin Museum and Jinan Gymnasium both adopted stringed dome structures. In addition, in bridge reinforcement, the application of external prestressing technology is becoming more and more extensive. [0003] In the construction of prestressed structural facilities, ...

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Problems solved by technology

[0006] However, the traditional method of hanging heavy objects to ensure the constant internal force of the cable cannot meet the aesthetic requirements of architectural design, resulting in a narrow application range. At the same time, under the action of wind suction, the constant internal force of the cable will cause excessive reverse deformation of the upper structure, causing premature structural failure

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