An anti-seismic prefabricated assembled bridge pier and its construction method

Abstract

The invention discloses an anti-seismic prefabricated assembled pier and a construction method thereof. The pier body is formed by assembling the upper section of the pier column, the lower section of the pier column, the prestressed tendons and the rubber elastic layer, and the pier body is reserved around the prefabricated pier body. anchor the energy-dissipating steel plate in the notch to ensure that the energy-dissipating steel plate will not deflect toward the inner side of the prefabricated pier column under load; Will deflect towards the outside of the pier. By setting the rubber elastic layer, on the one hand, make full use of the anti-seismic energy dissipation capacity of the external energy-dissipating steel plate and the built-in rubber elastic layer, and the combination of the two can guarantee the anti-seismic performance; on the other hand, it can avoid the collision of the upper and lower segments caused by the earthquake , Effectively prevent concrete from cracking and crushing. The construction method adopts the technical route of prefabrication in advance and on-site assembly. The prefabricated energy-dissipating steel plate and the upper and lower sections of the pier can be connected through the anchoring device and prestressed tendons, and the assembly can be completed simply and efficiently.

Description

technical field [0001] The invention belongs to the technical field of road and bridge construction, and in particular relates to an anti-seismic prefabricated assembled bridge pier and a construction method thereof. Background technique [0002] Prefabricated assembly technology has the advantages of high construction efficiency, small impact on the environment and traffic, reliable engineering quality and strong self-resetting ability. Since the construction of the Choisy-le-Roi Bridge on the Seine River in France in 1962, it has gradually become a bridge superstructure construction. One of the commonly used construction methods, some engineering applications have also begun in earthquake areas. In 1971, segmental prefabricated piers were used for the first time in the John F. Kennedy Causeway Bridge in Texas, USA. [0003] In the patent document with the publication number CN105586828A, a pier energy dissipation and anti-crush structure with built-in energy-dissipating s...

AI Technical Summary

Problems solved by technology

[0006] To sum up, in the prior art, although both the energy-dissipating steel plate and the rubber elastic layer can be used to resist earthquakes and dissipate energy, their structures are relatively complex, the cost is high, and the construction period is relatively long

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