A hollow pier prefabricated inter-segment connection device and construction method

Abstract

The invention provides a connection device and a construction method between prefabricated segments of a hollow pier, the connection device includes a pre-embedded steel plate, a U-shaped steel bar, a rubber plate, an upper / lower connecting steel plate, an upper / lower shear resistant steel plate and a filling plate, and a pre-embedded steel plate Pre-buried on the inner surface of the prefabricated segment, U-shaped steel bars are welded on the pre-embedded steel plate, part of which extends into the pre-fabricated segment, and part of which protrudes from the pre-embedded steel plate. Threads are set on the protruding part, and the rubber plate, upper / The lower connecting steel plate is connected with the embedded steel plate. After the assembly of the upper and lower prefabricated sections is completed, the upper shear steel plate and the upper connecting steel plate, the lower shear steel plate and the lower connecting steel plate are connected by high-strength bolts, and then a filler plate is inserted between the upper shear steel plate and the lower shear steel plate. The upper shear steel plate and the lower shear steel plate are connected by high-strength bolts. The connecting device of the present invention meets the needs of different processes in the prefabricated segment assembly process, and realizes functions such as hoisting, segment position positioning, segment linear adjustment, segment glue seam pre-pressing, and temporary locking.

Description

technical field [0001] The invention relates to the technical field of bridge structure construction, in particular to a hollow pier prefabricated inter-segment connection device and a construction method. Background technique [0002] In the field of prefabricated assembled construction, prefabricated assembled hollow piers are widely used in highway, municipal and some sea-crossing projects. Compared with traditional cast-in-place construction, it eliminates the need for on-site binding steel bars, building and dismantling formwork, and pouring concrete. The on-site workload has accelerated the construction speed and improved the project quality. [0003] The prefabricated assembled hollow pier is composed of different prefabricated segments. The prefabricated segments are manufactured in the factory and then transported to the site for assembly. The assembly process is the core construction link. The quality of the assembly construction is directly related to the alignmen...

AI Technical Summary

Problems solved by technology

[0004] In addition, concrete concave-convex shear keys are often set on the pier wall between prefabricated segments, which has problems such as poor pouring, affecting the arrangement of steel bars or prestressed stress on the pier wall, complicated processing and manufacturing, difficult assembly, and inability to replace, which affects the inter-segment Shear performance

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