A double-sided spray maintenance device for high-speed railway prefabricated box girders

Abstract

The invention discloses a double-sided spray maintenance device for a high-speed rail prefabricated box girder, which comprises a first outrigger, a second outrigger, a first box girder fixedly connected to the upper end of the first outrigger, and a first outrigger fixedly connected to the second outrigger. The second box girder at the upper end, the first outrigger and the second outrigger are both fixedly connected on the ground, and a water storage tank is fixedly arranged between the first outrigger and the second outrigger, and the water storage tank A return hole is provided in the middle of the upper end of each box girder, and a spraying mechanism for spraying the curing liquid on the upper end surface and the lower end surface of the first box girder and the second box girder is arranged between the first box girder and the second box girder. In the present invention, by setting the spraying mechanism and the pumping mechanism, the curing liquid can be sprayed from the upper spraying port and the lower spraying port respectively, and the upper and lower ends of the box girder can be maintained, and the curing liquid can be evenly sprayed on the box girder. The upper and lower ends of the beam, so as to realize the uniform spraying of curing fluid and play a better maintenance effect.

Description

technical field [0001] The invention relates to the technical field of bridge maintenance equipment, in particular to a double-sided spray maintenance device for high-speed railway prefabricated box girders. Background technique [0002] High-speed rail prefabricated bridges are prefabricated with C50 high-performance concrete. After the concrete is poured, the reason why it can gradually solidify and harden is mainly due to the hydration of the concrete. Hydration requires proper temperature and humidity conditions. Therefore, in order to ensure that the concrete has suitable hardening conditions and its strength is continuously enhanced, the concrete must be cured by spraying. After the concrete is poured, if the climate is hot and the air is dry, the water in the concrete will evaporate too quickly if it is not sprayed and cured in time, resulting in dehydration, which will cause the cement particles that have formed a gel to be unable to fully hydrate and cannot be trans...

AI Technical Summary

Problems solved by technology

Although the problem of mobile spraying has been solved, the water source is fixed, and it is bound to be unable to meet the maintenance of long-distance multi-segment bridges by relying on hoses to connect to the water source of maintenance water. The working distance is limited by the length of hoses; the internal space of prefabricated bridges The temperature and humidity requirements for maintenance and side wings are different. The side wings are thin and completely open and exposed, requiring multiple humidification and cooling, while the interior space hardly needs humidification, but this patent cannot treat it differently; it is impossible to humidify and cool the upper surface of the bridge. The upper surface is directly exposed to sunlight, which requires maintenance; in addition, there are many problems such as cumbersome structure, high failure rate, and low degree of intelligence.

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