Prefabricated reinforced concrete hollow pier socket and spigot joint connecting structure and manufacturing method

Abstract

The invention discloses a prefabricated reinforced concrete hollow pier socket and spigot joint connection structure and a manufacturing method. A component I of the structure is a prefabricated bearing platform; a corresponding pier column groove hole is reserved when the bearing platform is poured and is convenient for connection with a pier column, and meanwhile steel bar anchoring in the bearing platform and penetrating a hole is provided at the socket and spigot position, a component II is a prefabricated hollow pier column; the bottoms of the pier columns are welded through steel plates,holes are reserved in the corresponding positions of the steel plates, bearing platform anchoring steel bars can stretch into the holes conveniently, the overall connecting performance of the pier columns and the bearing platform can be obviously improved, meanwhile, inclined steel wedges are arranged at the corresponding positions of the pier columns and the bearing platform, after the pier columns are inserted, a self-locking function is achieved through rotation, temporary supports are not needed for reinforcement, and construction is facilitated. Meanwhile, interface ripples are arrangedon the surfaces of the pier column and the bearing platform, the connecting and shearing resistance performance is improved, a gap between the pier column and the bearing platform is subjected to crack pouring through UHPC, the socket and spigot joint quality is met to a great extent, and meanwhile the performance of high early strength and rapid construction is achieved. The operation is simple and convenient, the construction is easy and the quality is controllable.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a prefabricated reinforced concrete hollow bridge pier socket type node connection structure and method. Background technique [0002] At present, bridge construction is still dominated by cast-in-place concrete. Concrete cast-in-place construction requires a large number of on-site labor forces and a high risk of casualties; there are many procedures and site resources are wasted; as China's demographic dividend has decreased in the past decade, the population is aging Seriously, labor costs increase; on-site construction environmental pollution, noise pollution and many other adverse social and economic impacts. [0003] Due to the rapid increase in economic volume and limited space, urban construction and operation are faced with huge traffic pressure. It is imperative to build three-dimensional traffic. However, the construction of conventional cast-in-place struct...

AI Technical Summary

Problems solved by technology

The mechanical performance of the connection between the prefabricated pier column and the foundation of the conventional socket connection is not clear, the connection is weak, and the required cap thickness is large

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