Cable tower foot structure

Abstract

The invention discloses a tower foot structure of a guyed tower, which comprises a guyed tower main column and a foundation. The main column and the foundation are respectively connected with first and second connecting parts; the first connecting part is a flat plate while the second connecting part is an arc-surface support plate, or the first connecting part is an arc-shaped support plate while the second connecting part is a flat plate, so that a point hinging structure with a plane and an arc surface in contact is formed; a fixed plate also can be arranged to connect with the arc-surface support plate, and foundation round steel also can be arranged to penetrate the first and second connecting parts for restriction; nuts and anti-loose structures can be arranged on the top end of the foundation round steel. Hidden danger of separation of a joint place caused by transient wind load can be avoided efficiently when the tower foot structure of the guyed tower is in use, and the purpose of being convenient in processing, installation and foundation construction is realized.

Description

technical field [0001] The invention relates to a tower foot structure of a cable-stayed tower, in particular to a tower foot structure in which a plane and an arc surface are hinged at points, so as to achieve the purpose of clear force transmission, simplicity and convenience in processing, installation and foundation construction. Background technique [0002] The current transmission line towers are usually divided into self-supporting towers and cable towers according to the structural system. The cable towers are composed of tower heads, main columns and cables, such as figure 1 As shown in the schematic diagram of the existing guyed tower shown, the tower head and the main column are generally composed of a space truss composed of angle steel, which has good overall stability and can withstand large axial pressure. The cable is generally made of high-strength steel hinged wire, which can withstand a large pulling force, so that the cable tower can make full use of the...

AI Technical Summary

Problems solved by technology

Due to the limitation of the radius of the hemisphere, there have been accidents where the two hemispheres were separated due to the instantaneous wind load during operation.

[0005] Therefore, the disadvantages of the foundation type (hemispherical hinge) of the current guy tower feet are: first, it is not easy to process, and it is difficult to process and weld the connection between the main column and the sphere; second, the foundation construction process is complicated, compared with ordinary foundations. , the top surface of the foundation needs to be poured with hemispherical concrete, and the hemispherical steel member is buckled up. The hemisphere is welded with the steel bars embedded in the foundation in advance; The hidden danger of falling tower due to disengagement

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