Precast assembled pile foundation pier and construction method thereof

Abstract

The invention relates to a prefabricated pile foundation pier and a construction method thereof, comprising a prefabricated pile, a prefabricated bearing cap and a prefabricated pier column, wherein the pile foundation pier is integrally connected by a first connection structure for connecting the prefabricated pile and the prefabricated bearing cap and a second connection structure for connectingthe prefabricated pier column and the prefabricated bearing cap; the first connection structure connects the precast pile and the bearing cap into a whole, which ensures the reliability of the connection between the pile and the bearing cap, and at the same time satisfies the sufficient compression, bending and shearing capacity and certain tensile capacity at the pile top. The second connectionstructure connects the precast pier column with the cap, and ensures that the bottom of the pier has sufficient compression, bending, shear and ductility seismic capacity. Compared with the prior art,the invention is conducive to realizing the whole bridge segment assembly construction of the concrete bridge, improving the construction quality, greatly accelerating the construction process, shortening the construction period, reducing the adverse impact on the environment, reducing the construction noise and the like.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a prefabricated assembled pile foundation pier and a construction method thereof. Background technique [0002] Over the past ten years, the planning and construction of my country's expressway network and the process of urbanization have continued to accelerate, and many long bridges across the strait have been built and planned, such as the Qingdao Bay Bridge, the Shanghai Yangtze River Bridge across the Yangtze River Estuary, and the Shanghai-Small Bridge. Donghai Bridge in Yangshan Deep Water Port, Hangzhou Bay Bridge across Hangzhou Bay, and various urban viaducts. [0003] According to the domestic and foreign data collected, the prestressed concrete continuous girder bridge or continuous rigid frame bridge built by segmental assembly or pouring construction technology is mostly used in the approach bridges of long bridges across the strait and urban viaducts. S...

AI Technical Summary

Problems solved by technology

The main manifestations are as follows: 1. The above-mentioned patents do not involve the connection method between the prefabricated cap and the prefabricated pile foundation

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