Trolley for dismounting and mounting integral contraction type hydraulic inner mold of prefabricated box girder and dismounting and mounting method of trolley

Abstract

The invention discloses a trolley for dismounting and mounting integral contraction type hydraulic inner mold of prefabricated box girder. The trolley comprises a movable bracket, a fixed bracket, a transverse moving device, a flatness adjusting device and a base. The movable bracket and the fixed bracket are opposite to each other and are all arranged on the base. An vertical telescopic hook devices are arranged on the movable bracket and the fixed bracket. The transverse moving device is arranged on the base. The flatness adjusting device is arranged at the side end of the base. The movablebracket is connected with the transverse moving device. A safety hook device is arranged on the upper portion of the base. The trolley for dismounting and mounting integral contraction type hydraulicinner mold of prefabricated box girder has the advantages that the operation intensity is reduced, the construction efficiency is improved, the appearance quality of the concrete is guaranteed, and the field construction mechanization is realized. The invention further discloses a dismounting and mounting method of the trolley for dismounting and mounting integral contraction type hydraulic innermold of prefabricated box girder.

Description

technical field [0001] The invention relates to the technical field of building and bridge construction, and more specifically relates to a trolley for disassembling and assembling a prefabricated box girder integral shrinkage hydraulic inner mold. The invention also relates to a method for disassembling and assembling a trolley for integral shrinkage hydraulic inner mold of a prefabricated box girder. Background technique [0002] Box girder is a kind of beam in bridge engineering. It is hollow inside and has flanges on both sides of the upper part, similar to a box. Box girders with reinforced concrete structures are divided into prefabricated box girders and cast-in-place box girders. [0003] The prefabricated girder field undertakes the prefabricated construction tasks of bridge box girders required in the bidding section. The prefabricated box girders are assembled with steel inner molds and hoisted into the side molds as a whole. After the concrete pouring is complete...

AI Technical Summary

Problems solved by technology

The internal space of the box girder is small, and the single section of the inner formwork is gradually removed. The installation and disassembly of the inner formwork in the prior art is more difficult, and it is difficult to adjust the stitching joints. The construction is difficult to carry out, and there are construction safety hazards, the labor cost is relatively high, and the construction efficiency is low

[0004] The existing application number is 2018107611593, and the patent title is "A Prefabricated Box Girder Mandrel and Its Disassembly Method After Use", which discloses a prefabricated box girder mandrel that folds the upper and lower core plates under the action of tie rod components and strip steel and its post-use The disassembly method is the removal of the inner mold of the linkage rod, and the folding of the upper and lower templates is realized by pulling out the linkage rod. Many places are connected by hinges and hinges. The formwork is assembled in sections, and there are many joints in the formwork. The removal of the formwork has a great influence on the deformation of the formwork, which makes the splicing accuracy between the formwork and the pedestal mediocre.

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