Annular platform for bridge laying column construction and construction method

Abstract

The invention discloses an annular platform for bridge laying column construction and a construction method. The annular platform comprises a supporting ring base poured outside a laying column through an inserting rod, a plurality of supporting components are fixedly installed on the two sides of the supporting ring base correspondingly, the tops of the supporting components are rotatably connected with top platform components, a surrounding mechanism is fixedly installed in each top platform component through a light platform component, and the bottom of the surrounding mechanism is movably connected with one side of the corresponding supporting component. Through cooperation of extrusion rollers and triangular plates, the direction adjusting difficulty caused by the weight of the top platform components is reduced, and the angle adaptive steering capacity of an external assembly component is improved; the platform components can be limited and fixed in the deflection direction through insertion of clamping rods, so that the safety of construction is improved; the multi-axis expansion capacity in the annular direction is improved through multiple supporting bottom plates and platform side plates, extension assembly of an elevator frame and a supporting frame is facilitated, and the diversified expansion requirement of the construction platform is met.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a circumferential platform and a construction method for the construction of bridge columns. Background technique [0002] During bridge construction, it is generally necessary to carry out support casting construction on the bridge columns, and maintain the exterior of the main body after pouring. Since the outer facade of the bridge columns is a smooth round surface, the traditional rectangular frame support is not conducive to the fit of the outside of the ring-shaped main body. construction effect. [0003] Chinese patent document CN104727223B discloses a circular platform and a construction method for the construction of bridge pier columns. A ring of platform supports is fixed circumferentially along the periphery of the formwork, and bamboo plywood is laid on the platform supports and guardrails are set to form a circular platform. During the construction, the...

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Problems solved by technology

During the construction, the circular platform is used as the construction platform, and the construction is carried out in sections from bottom to top, and the formwork of the cylindrical pier is increased in sections. When there is a middle tie beam, first complete the construction of the lower pier columns of the middle tie beam, remove the formwork below the middle tie beam, and then set up a "zigzag"-shaped turning ladder to the elevation of the middle tie beam, and use a ring platform for the upper pier column of the middle tie beam. Section construction, and finally complete the cover beam construction, and then dismantle the cover beam formwork, pier column formwork, and rotating ladder from top to bottom. However, in actual use, there are still certain defects, such as the lack of overall platform expansion ability, which affects the subsequent The maintenance function of the facade of the main body, and the lack of overall direction adjustment ability after assembly, the position of the platform surface is relatively fixed, the lack of angle adaptation ability to the external auxiliary upgrading mechanism or construction equipment, the adjustable adaptation ability is insufficient, and the overall support Disassembly and assembly, the ability to adjust and adapt to the segmental construction of the column is insufficient, and the support consumables for building components at the end of the column increase

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