Pile column type pier assembly structure and construction method

Abstract

The invention discloses a pile column type pier assembling structure. The structure comprises a pile foundation, prefabricated pier columns and a prefabricated cover beam which are connected in sequence, wherein first embedded steel bars are arranged at the top of the pile foundation, grouting sleeves are arranged at bottoms of the prefabricated pier columns, the first embedded steel bars extend into the grouting sleeves, second embedded steel bars are arranged at the tops of the prefabricated pier columns, corrugated pipes are arranged in prefabricated bent caps, the second embedded steel bars extend into the corrugated pipes, the positions between the first embedded steel bars and the grouting sleeves are filled with first slurry structural layers, and the positions between the second embedded steel bars and the corrugated pipes are filled with second slurry structural layers. The structure is advantaged in that all components are standard in size and prefabricated in factories, theconstruction progress is accelerated, the prefabricating quality and the mounting quality are controllable, the prefabricated pier columns are reliably connected with the pile foundation and the prefabricated bent caps, and positioning is easy. The invention further provides a construction method of the pile column type pier assembly structure, on-site welding is not needed, the on-site pouring workload is greatly reduced, the construction progress is accelerated, and the occupied area is small.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a pile-column bridge pier assembly structure and a construction method. Background technique [0002] Concrete column piers are generally composed of pile foundations, pier bodies and cap beams. Its advantages are that it does not require pile caps, reduces the weight of the lower structure, saves materials, and facilitates construction. It is widely used in small and medium-span bridges, especially span bridges. . [0003] At present, the construction of bridge piers in my country mostly adopts the cast-in-place construction method. When rebuilding or building old bridges on busy road sections, the site construction period is long, which is likely to cause environmental pollution and traffic congestion, and it is difficult to meet the current construction needs. Assembled technology is to prefabricate various components in the factory in advance, and assemble them di...

AI Technical Summary

Problems solved by technology

[0003] At present, the construction of bridge piers in our country mostly adopts the cast-in-place construction method. When rebuilding or building old bridges on busy roads, the on-site construction period is long, which is likely to cause environmental pollution and traffic congestion, and it is difficult to meet the current construction needs.

Assembled technology is to prefabricate various components in the factory in advance, and assemble them directly after transportation to the site, eliminating the need for formwork, concrete pouring, and maintenance, which can significantly reduce interference with existing traffic. However, the assembly of pile-type piers has not yet accomplish

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