Combined swivel support for bridge construction

Abstract

The invention discloses a combined swivel support for bridge construction. According to the invention, a plurality of circular side supporting templates which are sequentially stacked from bottom to top are fixed to the upper edge of a circular supporting bottom plate; the circular side supporting templates are fixedly connected with the circular support bottom plate through fixing bolts; the circular side supporting templates are fixedly connected through the fixing bolts; a plurality of limiting guide columns arranged in a circumferential direction are fixed to the upper surface of the circular supporting bottom plate; the limiting guide columns are sleeved with rigid springs respectively; limiting supporting circular plates are installed on the limiting guide columns; clamping through holes are formed in the upper ends of the limiting guide columns respectively; longitudinal reinforcing steel bars arranged in a vertical direction are clamped and fixed to the clamping through holes respectively; and a plurality of annular reinforcing steel bars are sequentially welded and fixed between the longitudinal reinforcing steel bars at equal intervals from bottom to top. The combined swivel support is convenient to assemble and install, high in stability and good in anti-seismic buffering effect, the templates are easy to disassemble after being used, and different heights can be poured according to needs.

Description

Technical field [0001] The invention relates to the field of bridge swivel bearings, in particular to a combined swivel bearing for bridge construction. Background technique [0002] With the development of my country’s society and economy and the rise of a new round of infrastructure construction, it is necessary to build more bridges spanning existing roads, railways, rivers, ditches, etc., while turning bridges operate on existing railway lines. The advantages of small impact and low security risk have been widely used. [0003] The bridge rotation method construction can avoid the impact on nearby transportation routes to a large extent, and it can also overcome the difficulty of erecting large-span bridges on high mountain valleys, deep waters or rivers with frequent navigation, especially in the construction of cities in heavy traffic areas. In the case of overpasses and railway bridges, the advantages of bridge rotation method construction are more obvious. In recent years,...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of inconvenient assembly and installation, poor stability, unsatisfactory anti-seismic buffering effect, difficult disassembly of formwork after use and inability to pour different height swivel supports according to needs, the present invention provides a Composite swivel bearing for bridge construction

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