Method for butt jointing of prefabricated bridge modulus expansion device by ordinary welding method using bushing sleeve

Abstract

A method utilizing a lining sliding sleeve to conduct butt joint on a fabricated bridge module extensible device through an ordinary welding method includes the following steps of welding the sliding sleeve (5) on the upper face of a middle beam (3) in a butt joint position of the middle beam (3), and conducting welding in a crevasse mode on the periphery of the middle beam except the bottom of the butt joint position of the middle beam. The method utilizing the lining sliding sleeve to conduct the butt joint on the fabricated bridge module extensible device through the ordinary welding method guarantees that factory products can be produced in a batched mode according to a standard, improves work efficiency, achieves simple transportation and hoisting, is in favor of energy conservation and emission reduction, makes full use of existing universal equipment, reduces construction equipment configuration cost, is in favor of manual simple operation, promotes the construction mechanization level, enables divided lane construction to be conveniently conducted, and improves maintenance of roads and bridges and the site traffic safety management level.

Description

technical field [0001] The invention relates to a butt joint method of an assembled bridge modulus expansion joint device in the field of bridge construction, in particular to a butt joint device and a butt joint method of an assembled bridge modulus expansion joint by using lining sliding sleeves and welding. Background technique [0002] At present, in the process of setting bridge expansion joints, most of them are equipped with modular bridge expansion devices according to the overall length, which needs to be produced in the factory at one time. Among them, due to the limitation of raw material length, the increase of road width and other unfavorable factors - such as the limitation of the length of transport vehicles, the deformation of hoisting on the construction site, etc., the practicability and reliability of the modular bridge expansion device produced according to the overall length will be limited. Insufficient; especially after a certain number of years of use...

AI Technical Summary

Problems solved by technology

Among them, due to the limitation of raw material length, the increase of road width and other unfavorable factors - such as the limitation of the length of transport vehicles, the deformation of hoisting on the construction site, etc., the practicability and reliability of the modular bridge expansion device produced according to the overall length will be limited. Insufficient; especially after a certain number of years of use, when there is a need for partial maintenance of separate lanes, there are insufficient traffic management and construction convenience, which is likely to cause excessive blockage of traffic flow and excessive construction costs; the use of segmented production, The method of on-site welding butt joint installation involves many factors affecting on-site technology, and the equipment cost and on-site process requirements are relatively high, and it may even have adverse effects on the original waterstop; while the commonly used beveling and welding reinforcement treatment method, affected by the position and effect of welding, it is difficult to effectively prevent load-bearing deformation, and the equipment type, process cost and production time used at the same time will be far greater than the actual use value

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