Movable type prestress tension auxiliary device

Abstract

The invention discloses a movable type prestress tension auxiliary device, and relates to the technical field of prestress tension auxiliary tools. The movable type prestress tension auxiliary device comprises a chassis with a roller, a working support is arranged above the chassis, one end of the working support is hinged to the chassis, a jacking jack is arranged between the working support and the chassis, and the free end of the working support is provided with a tensioning jack supporting structure. According to the movable type prestress tension auxiliary device, a tensioning jack is supported through the tensioning jack supporting structure above the working support, the working support is jacked up through the jacking jack, then the tensioning jack is jacked to the position of a sawtooth block of a box girder ejection plate, and prestressed reinforcement is tensioned; and meanwhile, by means of the roller below the chassis, the tensioning jack can be easily jacked to different working places. By means of the movable type prestress tension auxiliary device, the working time can be saved, the working efficiency is improved, manual cost is saved, and the labor intensity is reduced.

Description

Technical field [0001] The invention relates to the technical field of prestressed tensioning auxiliary tools, in particular to a mobile prestressed tensioning auxiliary device. Background technique [0002] In the construction of pre-stressed concrete cast-in-place continuous beams of large bridges, a single-box, single-chamber, variable-height and variable-section beam structure is generally adopted. The top and bottom plates of the box beam are symmetrically designed with multiple zigzag tension blocks, and large-tonnage hydraulic jacks are required. The pre-stressed tendons are stretched, and the continuous beam box concrete is poured after reaching the tensile strength, and the stretching can be started. [0003] The original construction process is: before tensioning, a scaffolding construction platform is usually set up under the corresponding sawtooth block on the top of the box body, and at the same time, a hole is reserved at the top plate of the tension end of the corres...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a mobile prestressed tensioning auxiliary device, which aims to solve the technical problems of the above-mentioned prior art, which are cumbersome procedures, labor-intensive, time-consuming, labor-intensive, and low safety factor

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