A kind of viaduct pier beam and its construction technology

Abstract

The invention discloses an elevated bridge pier beam and a construction technology thereof and aims at solving the problems that steel bars and concrete are poured after the ground is needed to be drilled, and a prefabricated slab is built at the aboveground part to perform pouring, so that construction on an original road more needs road closure for a long time as various procedures and long construction period during construction of the traditional elevated bridge pier construction. The elevated bridge pier beam is simple in structure; micro-expansion concrete is poured in a tail end pipe, amiddle end pipe and a top end pipe, so that improvement on the flexural performance and the compressive performance of the pipes is facilitated; and the internally poured concrete can have micro expansion, cannot have shrinkage holes or cracks after being thoroughly solidified and forms a certain pre-expansion force inside. A bridge pier is formed by welding or threaded connection of the three ofthe tail end pipe, the middle end pipe and the top end pipe; and as thick wall steel pipes are adopted, rapid piling can be realized, the construction period is short, the occupying place is small, and building of the prefabricated slab is not needed.

Description

technical field [0001] The invention relates to the technical field of viaduct structures, in particular to a preparation process for viaduct pier beams. Background technique [0002] With the development of society, the convenience of transportation has become a major aspect that various countries pay attention to. Viaducts are also products that cater to the development of this era. Viaducts, that is, overpass bridges, are a kind of bridge. A bridge spanning valleys, rivers, roads, or other low obstacles, especially with high-supported towers or pillars resting on a series of narrow reinforced concrete or masonry arches. After the city develops, the traffic is congested, the buildings are dense, and the streets are difficult to widen. Using this kind of bridge can evacuate the traffic density and improve the transportation efficiency. In addition, in highways or railways between cities, in order to avoid crossing with other lines, save land, and reduce subsidence of the r...

AI Technical Summary

Problems solved by technology

[0003] For the construction of traditional viaduct piers, it is necessary to drill holes in the ground before pouring the steel bars and concrete, and the prefabricated slabs must be set up on the ground for watering, so that due to the many procedures and long construction period during construction, it is more necessary to construct on the original road. Road closed for a long time

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