Process for mounting template for manufacturing sectional box girders

Abstract

The invention discloses a process for mounting a template for manufacturing sectional box girders. The mounting process comprises the following steps: (1) mounting a fixed end die; (2) mounting a bottom die; (3) mounting a side die; (4) mounting an inner die; and (5) mounting a fast-easy closing-up net template. The mounting process obtained according to the technical scheme can quickly mount the template precast by matching long lines and short lines so as to streamline the production of the sectional box girders, facilitates the control of the measurement in the whole mounting process, ensures that the mounting speed is high, shortens the construction period, greatly reduces the error of the sectional box girder manufacturing process, and improves the yield of the whole sectional box girder manufacture so as to improve the quality of manufacturing the sectional box girders.

Description

Technical field [0001] The invention relates to a segmental prefabricated and assembled box girder construction technology, in particular to an installation process for making a template of a segmented box girder. Background technique [0002] At present, the prefabrication methods for segmented box girder generally include long-line matching prefabrication and short-line matching prefabrication; its long-line matching prefabrication has the following advantages: ①The geometric shape is easy to arrange and control, the structure is simple, and the construction and production process is relatively easy to control; ②Demoulding After that, there is no need to immediately transfer the beam section to the storage site; ③The deviation will not accumulate, and the deviation formed by the block section can be adjusted in time through the next block, and it can also be matched with multiple points at the same time, so the construction progress is fast; The method also has the following sh...

AI Technical Summary

Problems solved by technology

[0002] At present, the prefabrication methods for segmental box girders generally include long-line method matching prefabrication and short-line method matching prefabrication; the long-line method matching prefabrication has the following advantages: ① geometric shape is easy to arrange and control, structure is simple, and the construction and production process is relatively easy to control; ② demoulding After that, there is no need to transfer the beam section to the storage place immediately; ③The deviation will not accumulate, and the deviation formed by the block section can be adjusted in time through the next block section, and it can also match prefabrication at multiple points at the same time, and the construction progress is fast; The method also has the following disadvantages: large floor area, the pedestal must be built on a solid foundation, the curved bridge needs to form the required curvature, and the pouring, health care and other equipment are all mobile

It has the advantages of (1) small footprint; (2) forming an assembly line operation and high construction speed; (3) suitable for the engineering needs of more segment types and frequent formwork inversion, etc., and has shortcomings in the following aspects: formwork and pouring equipment They are all fixed, and can obtain flat curves, vertical curves and different superelevation; the requirements for instruments are very strict (requiring that the matching section must be placed very accurately, so precise measuring instruments and equipment are required); higher inlaid beam sections are required Excellent adjustment accuracy, precise measurement and control methods

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