Flange isolation pad used for prefabricating box girder and construction method of flange isolation pad

Abstract

The invention discloses a flange isolation pad used for prefabricating a box girder and a construction method of the flange isolation pad. The flange isolation pad comprises an isolation pad body madeof a wear-resisting soft material. One face of the isolation pad body is a smooth surface, and the other face of the isolation pad body is a rough surface. Protrusions are distributed on the rough surface. When the box girder is prefabricated, the smooth surface makes contact with a comb plate in a binding mode, and the protrusions face the inner side. The protrusions are evenly distributed in astaggered mode on the isolation pad body. The flange isolation pad has the remarkable beneficial effects that the pad does not need to be roughened again, energy is saved, the pad is environment-friendly, and the product quality and the production efficiency are effectively improved; concrete is prevented from running away, and the pad is quick and convenient to install and detach, economical andpractical; and the pad can be cyclically used for multiple times, and construction cost is reduced.

Description

Technical field [0001] The invention relates to the technical field of prefabricated box girder construction, in particular to a flange isolation pad for prefabricated box girder and a construction method thereof. Background technique [0002] With the rapid development of road construction in my country, the level of road engineering design and construction technology is constantly improving, and the types of bridge structures are more complex and diverse. Precast box girder is lighter in structure, smaller in building height, and less reinforced. Compared with cast-in-place box girder The advantages of fast construction speed, etc., are commonly used in roads and bridges. At the same time, as the speed and scale of the construction of expressways, railways and passenger dedicated lines in my country are accelerated and the scale is gradually expanded, there is an increasing demand for the introduction of new technologies and new processes during the construction process, and eff...

AI Technical Summary

Problems solved by technology

However, the disposable metal isolation net is thin and difficult to install. It is easy to be damaged or incomplete during dismantling, resulting in increased labor costs; the resulting rough surface is not effective and often needs to be chiseled again; and there are gaps in the iron isolation net , the concrete will inevitably have a certain loss, resulting in material waste

Images