Stay cable single-time synchronous tensioning device based on spatial special shape

Abstract

The invention provides a stay cable single-time synchronous tensioning device based on spatial special shape, which comprises tower columns, anchor beams, a fixing frame, a center hole jack, a buffer pressure detection frame structure, an auxiliary reinforcing frame structure, a stay cable, a fixing rod, a pump set, a PLC (programmable logic controller), a stay cable guide protection frame structure and a maintenance refueling frame structure, and the anchor beams are respectively mounted on the inner sides of the tower columns; the joint of the anchor beam and the tower column is fixedly connected with a fixing frame; the center hole jack penetrates through the tower column and is installed on one side of the fixing frame. A buffer pressure detection frame structure is mounted at the upper part of the center hole jack; the upper part of the buffer pressure detection frame structure is provided with an auxiliary reinforcing frame structure. The concave guide wheels are arranged on the upper side and the lower side of the stay cable, damage caused by abrasion between the stay cable and the outer side of the tower column can be avoided in the using process, and then the protection effect on the stay cable is improved.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a single-time synchronous tensioning device for stay cables based on spatial special shapes. Background technique [0002] At present, the application of cable-stayed bridges is more and more extensive. Cable-stayed bridges are statically indeterminate structures for many times, and the stress conditions of beams, towers and cables are relatively complex. During the tensioning process of stay cables, one of the factors that has a great influence on construction is unbalanced force. The influence of the cable force of the stay cable; when the unbalanced force is too large, it will affect the stress on the main structure of the bridge and increase the difficulty of the alignment control of the whole bridge. The generation of unbalanced force is particularly prominent in the tensioning process of multi-plane and multi-layer stay cables. [0003] However, th...

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Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a single-time synchronous tensioning device for stay cables based on space irregularities to solve the inconvenience of maintaining the cables in the existing single-time synchronous tensioning devices for stay cables. It has the problem of buffering effect and poor fixing effect on the cable

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