Quick connecting structure between prefabricated pier column and base and construction method

Abstract

The invention provides a quick connecting structure between a prefabricated pier column and a base and a construction method. The quick connecting structure comprises the prefabricated pier column and the base, a post-pouring groove and a connecting column are arranged at the upper part of the base, and concave-convex shear keys are arranged on the side walls of the post-pouring groove and the connecting column; the anti-shearing pin is arranged at the top of the connecting column, is positioned in the center of the connecting column and consists of an anti-shearing steel plate, an anti-shearing steel bar and concrete; the prefabricated pier column is composed of a pier column body, a pier column main rib and a shear-resistant pin groove, and the pier column main rib is pre-buried in the pier column body and penetrates out of the bottom of the pier column body. The pier column body and the connecting column are connected through the splicing seam, the pier column main rib extends into the post-pouring groove of the base, and a post-pouring belt is poured. The connecting structure is low in connecting precision requirement, large in construction allowable error, high in construction speed, easy in quality guarantee, simple in structure, low in cost and high in joint shear resistance, and quick connection between the prefabricated pier column and the base is achieved. Meanwhile, the cost is low, and engineering application and popularization are facilitated.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a quick connection structure between a prefabricated pier column and a base and a construction method. Background technique [0002] In recent years, as the country has increased investment in infrastructure, a large number of bridge projects have been constructed in railways, highways, and municipal roads. At the same time, new construction models such as green construction and intelligent construction have continued to advance, and the prefabricated assembly construction technology of bridge piers has attracted widespread attention. When the pier is prefabricated, the pier column is prefabricated in the factory, and the prefabricated pier column is transported to the site for assembly. There is a joint between the pier column and the base. The strength of the joint and the speed of construction will directly affect the performance and construction of the bridge pier. speed. ...

AI Technical Summary

Problems solved by technology

[0005] 2. The construction speed is slow. During the construction, the steel bars need to be inserted into the pre-buried grouting sleeve and bellows one by one, and then grouted one by one, which increases the construction process and time

[0006] 3. Quality control is difficult, because the grouting sleeve or bellows is located inside the structure, it is difficult to check the grouting quality and compactness, and the connection performance of the structure depends entirely on the grouting effect, which increases the difficulty of quality control

[0007] 4. When the grouting sleeve or corrugated pipe is pre-embedded in the base, each grouting sleeve or corrugated pipe needs to be provided with a grouting port and a grouting port, and it is necessary to use pipes to lead them out of the structure one by one. complex

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