Rotation device for bridge pier and rotation construction method

Abstract

The invention provides a rotation device for a bridge pier. The rotation device for the bridge pier includes a rotating part, a reaction part and an anti-overturning part; the rotating part includes arotation jack, a rotation steel strand, a rotating disc lower steel plate, a polytetrafluoroethylene plate, a rotating disc upper steel plate and a rotating shaft; the reaction part includes a reaction pier; and the anti-overturning part includes an anti-overturning clamp and a cement track; the lower end of the reaction pier is fixed to the ground and the side with stiffening ribs of the reaction pier faces the direction of the bridge pier; the rotation jack is installed in the direction, deviating from the bridge pier, of the reaction pier, and the cement track and the bridge pier are concentrically poured on the ground; the anti-overturning clamp is square internally and round externally, hoops around a pier body and is placed on the cement track, and the anti-overturning clamp is wound with the rotation steel strand; and the rotating disc lower steel plate, the polytetrafluoroethylene plate and the rotating disc upper steel plate of the rotating part are sequentially laid in a cylindrical groove of a bearing platform from bottom to top. The rotation device for the bridge pier device is simple in structure and convenient in installation, is applied to the implementation of thebridge pier rotation construction, and has the advantages of low comprehensive cost, short construction period, less influence on the structural force, being capable of saving construction space and the like.

Description

technical field [0001] The invention relates to bridge construction equipment and a construction method thereof, in particular to a swivel device for a bridge pier and a construction method for a bridge pier swivel. Background technique [0002] There are roads on both sides of the part of the bridge to be built, and the road traffic is very congested during the day and night. The bridge construction must be carried out under the condition of ensuring the normal use of the roads on both sides, which brings difficulties to the construction; in order to cope with this challenge, it is necessary to A special bridge pier construction method, that is, the use of pier rotation construction method; the development of special pier rotation construction equipment, the normal construction of the pile foundation and cap of the pier, but the hoisting and connection of the pier body and the capping girder are along the Shun bridge. Finally, the pier swivel equipment rotates between the c...

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Problems solved by technology

[0003] For this reason, various design and construction units have proposed various pier swivel construction equipment and swivel construction methods to meet the needs of different types of bridges and construction in different construction environments, and each has its own characteristics, but also has shortcomings; among them , the utility model patent application with the authorized announcement number CN203546620U discloses a bridge pier bottom swivel system, but the upper and lower turntables of this patent are made of concrete pouring, which is bulky and has a large construction workload; moreover, because the swivel device cuts off the The design strength of the original structure cannot be achieved only by pouring concrete in the later stage; secondly, when the pier body is relatively high or there is an assembled cover beam on it, due to its heavy weight, It is necessary to install anti-overturning hoops around the pier body to increase its anti-overturning ability, but the swivel device does not

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