Installation technique for segment box beam manufacturing formwork

Abstract

The invention discloses an installation technique for a segment box beam manufacturing formwork. The installation technique comprises the following steps of (1) installation of fixed end formwork bodies; (2) installation of a bottom formwork body; (3) installation of lateral formwork bodies; (4) installation of an internal formwork body; and (5) installation of a net framework body capable of being closed rapidly and easily. According to installation technique based on the technical scheme, rapid installation of a formwork prefabricated by integrating and matching a long line method with a short line method can be achieved, and streamlined production of segment box beams can be achieved; in addition, in the whole installation process, measurement is easy to control, the installation speed is high, the construction period is shortened, the errors caused in the segment box beam manufacturing process are greatly reduced, the rate of all manufactured finished segment box beams is increased, and thus the quality of the manufactured segment box beams is improved.

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 for a segmental box girder. Background technique [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 that has been made 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 construct...

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

Images