CN213389723U

CN213389723U - Cable tower crossbeam construction bracket pre-compaction structure

Info

Publication number: CN213389723U
Application number: CN202021289804.5U
Authority: CN
Inventors: 王安文
Original assignee: Steel Structure Branch Of Cccc Road And Bridge Construction Co ltd; Road and Bridge International Co Ltd; CCCC Ruitong Construction Engineering Co Ltd
Current assignee: Steel Structure Branch Of Cccc Road And Bridge Construction Co ltd; Road and Bridge International Co Ltd; CCCC Ruitong Construction Engineering Co Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-06-08
Anticipated expiration: 2030-07-02

Abstract

The utility model relates to a cable tower crossbeam construction bracket pre-compaction structure installs 2 at least truss-like triangular brackets side by side on the relative lateral wall of two cable towers respectively, and a reaction frame is installed respectively to every triangular bracket top take the altitude to be located, the reaction frame is a reverse triangle bracket of installing, and every triangular bracket top surface is equipped with the jack, and the piston end top of jack is in the bottom surface of reaction frame. The utility model has the advantages that the high-altitude hoisting and the preloading material are not needed, the efficiency is high, and the risk is low; the reaction frame adopts the bracket of reverse installation, and after the pre-compaction was accomplished, the reaction frame pulled down can continue to use as the bracket, need not additionally provide pre-compaction material and equipment, can reduce construction cost.

Description

Cable tower crossbeam construction bracket pre-compaction structure

Technical Field

The utility model belongs to bridge construction field relates to a structure that carries out the pre-compaction to suspension bridge or cable-stay bridge's pylon crossbeam construction bracket.

Background

Because the cable tower of the suspension bridge or the cable-stayed bridge is high, a triangular bracket is usually adopted during the construction of a cross beam between towers. In order to ensure the construction safety, the bracket needs to be pre-pressed before the concrete pouring of the cross beam, so that the inelastic deformation of each component of the bracket is eliminated, and the deformation of the bracket caused by the increase of the load during the concrete pouring is prevented. The method is complex in process, long in time consumption, high in material investment, high in cost and low in efficiency, and construction risks can be increased due to the fact that a large amount of overhead hoisting operation is needed.

Disclosure of Invention

The utility model aims at providing a do not need high altitude hoist and mount operation, with low costs, efficient, the strong cable tower crossbeam construction bracket pre-compaction structure of security to the problem that the pre-compaction of current surcharge-load method exists.

The technical scheme of the utility model as follows:

the utility model provides a cable tower crossbeam construction bracket pre-compaction structure installs 2 at least truss-like triangular brackets that parallel on the relative lateral wall of two cable towers respectively, triangular brackets fixes on the pier through pre-buried connecting piece on the pier body, its characterized in that: a reaction frame is respectively arranged at a certain height above each triangular bracket, the reaction frame has the same structure as the triangular bracket and is opposite to the mounting direction, and each reaction frame is also fixed on the pier body through a connecting piece pre-embedded on the pier body; and a jack is arranged on the top surface of each triangular bracket, and the piston end of the jack is propped against the bottom surface of the reaction frame.

The utility model discloses a jack cooperation reaction frame carries out the pre-compaction, does not need high altitude hoist and mount the preloading material, easy operation, and efficient, the load loading is accurate, and the pre-compaction effect is controllable, has reduced the high altitude construction risk; the reaction frame is directly reversely installed by the triangular bracket, after prepressing is finished, the reaction frame can be continuously used as the bracket after being disassembled, prepressing materials and equipment do not need to be additionally provided, and the construction cost can be reduced.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic side view of the present invention.

Detailed Description

As shown in fig. 1 and 2, at least 2 parallel truss type triangular brackets 2 are respectively installed on the opposite side walls of two cable towers 1, and the triangular brackets 2 are fixed on the pier body through connecting pieces 3 pre-embedded on the pier body; a reaction frame 4 is respectively arranged at a certain height above each triangular bracket 2, the reaction frame 4 has the same structure as the triangular bracket, the installation direction on the pier body is opposite, and the reaction frame is a triangular bracket which is reversely installed; each reaction frame is also fixed on the pier body through a connecting piece pre-embedded on the pier body; a jack 5 is arranged on the top surface of each triangular bracket, and the piston end of the jack 5 is propped against the bottom surface of the reaction frame 4.

The utility model discloses during the implementation, when pier shaft concrete placement, at the pre-buried connecting piece of the predetermined mounted position of bracket and reaction frame. The triangular brackets are fixed on the pier body through the pier body embedded connecting pieces, and a triangular bracket is reversely installed above each triangular bracket through the embedded connecting pieces to serve as a reaction frame. During the bracket pre-compaction, place the jack on the bracket, start the jack and upwards push away the reaction frame, carry out the pre-compaction to the bracket through the counter-force that the reaction frame provided. And controlling the pre-pressure through the reading of the jack until the set pre-pressure load is reached. After the prepressing is finished, the reaction frame is detached and can be used as a bracket for continuous use.

Claims

1. The utility model provides a cable tower crossbeam construction bracket pre-compaction structure installs 2 at least truss-like triangular brackets that parallel on the relative lateral wall of two cable towers respectively, triangular brackets fixes on the pier through pre-buried connecting piece on the pier body, its characterized in that: a reaction frame is respectively arranged at a certain height above each triangular bracket, the reaction frame has the same structure as the triangular bracket and is opposite to the mounting direction, and each reaction frame is also fixed on the pier body through a connecting piece pre-embedded on the pier body; and a jack is arranged on the top surface of each triangular bracket, and the piston end of the jack is propped against the bottom surface of the reaction frame.