Prefabricated columnar pier and construction method thereof

Abstract

The invention discloses a prefabricated columnar pier. The prefabricated columnar pier comprises pile foundations and prefabricated pier studs mounted on the pile foundations. A hoop platform is mounted at the top of each prefabricated pier stud, and temporary supports are arranged on the hoop platforms in a balanced manner. Each hoop platform is formed by a sleeve form by connecting two arc plates through pretightening force bolts arranged on the connecting sides in a penetrating manner, and vertical stiffening ribs are longitudinally arranged in the middles of the outer side walls of the twoarc plates of each hoop platform. The upper opening edges and the lower opening edges of the two arc plates of each hoop platform horizontally extend to form an upper top plate and a lower bottom plate, and the temporary supports are arranged on the surfaces of the upper top plates. Connectors are pre-buried in the prefabricated pier studs corresponding to the positions of prefabricated system beams, and the two ends of the prefabricated system beams and the connectors on the prefabricated pier studs are welded or in bolt connection into a whole. The invention further discloses a constructionmethod of the prefabricated columnar pier. The bridge pier is ingenious in structure and convenient to transport and hoist, the construction procedures are simple, energy saving and environment protection are achieved, and wide application prospects are achieved in urban bridge building.

Description

technical field [0001] The invention relates to road and bridge engineering construction, in particular to a prefabricated and assembled columnar bridge pier, and also relates to a construction method of the bridge pier. Background technique [0002] With the increasing scale of road and bridge construction in my country and the increasing awareness of environmental protection, the application of prefabricated bridge structures is becoming more and more extensive. The piers used in the existing bridges can be divided into solid piers, hollow piers, column piers, frame piers and the like according to the structure. For prefabricated bridges, columnar piers are more common, and factory prefabrication and installation are easier. [0003] Common columnar piers (referred to as column piers) are divided into single column piers and multi-row column piers. The single-column pier structure generally includes a pier body and a pier cap. When the distance between the supports of t...

AI Technical Summary

Problems solved by technology

[0005] 1) For bridge piers cast on site, brackets and formwork need to be built during the construction process, which requires a large construction space and affects traffic, and the site pouring has a greater impact on the environment, which will bring environmental protection problems; at the same time, concrete needs to be maintained after pouring The next stage of construction can only be carried out after a period of time, and the construction period is long

[0006] 2) The pier cap is set on the top of the columnar pier, and the setting of cast-in-place formwork or prefabricated segmental formwork is complicated, which brings a lot of inconvenience to the construction. At the same time, the temporary support needs to be removed after the upper part of the construction is completed. cycle growth

When there are multiple piers, the top prefabricated segment is bulky and heavy, which brings inconvenience to transportation

At the same time, in the process of hoisting, it is required that the positions of multiple piers be connected accurately, the precision is high, and the construction control is complicated.

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