Spherical hinge permanent support and upper rotation construction method thereof

Abstract

The invention relates to a spherical hinge permanent support and an upper rotating body construction method thereof. An upper rotating assembly and a lower rotating assembly in the spherical hinge permanent support are hinged through a spherical hinge support; a supporting part comprises supporting feet, a slide ways and supporting pipes. The lower ends of the multiple supporting pipes are connected with the lower portion of the lower rotating assembly. the slide way is of an annular structure and is fixedly arranged at the top of the supporting pipe; the upper end of the supporting leg is detachably connected with the upper rotating assembly, and the lower end of the supporting leg corresponds to the slide way; the lower end of the transmission shaft assembly sequentially penetrates through the upper rotating assembly and the spherical hinge support, then stretches into the lower rotating assembly and is fixed to the lower rotating assembly. The driving assembly comprises a motor, a driving gear and a driven gear, the motor is fixedly arranged at the top of the upper rotating assembly, and the driving gear is connected with an output shaft of the motor; the driven gear is fixedly arranged at the upper end of the transmission shaft assembly; the driving gear is meshed with the driven gear.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method for a permanent bearing of a spherical joint and its upper swivel body. Background technique [0002] At present, with the vigorous development of high-speed railways and expressways in our country, the newly-built lines intersect with the original roads. Methods such as cantilever pouring, scaffolding and swivel construction are often used to make the new line cross the existing line. Among them, the horizontal rotation method of swivel construction is the safest construction method with the least impact on the original route. However, for a bridge that rotates horizontally at the top of the pier, in order to provide the slideway and reaction seat required for the rotation, the upper part of the pier needs to be carried out as follows: figure 1 The shown widening process, while erecting supports, provides a construction platform. For this reas...

AI Technical Summary

Problems solved by technology

The construction is time-consuming and laborious, and the age difference between the newly poured concrete and the original pier top concrete is too large, which is easy to crack

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