Self-resetting single pier column structure utilizing steel plates to consume energy

Abstract

The invention discloses a self-resetting single pier column structure utilizing steel plates to consume energy. The structure comprises a bent cap and a foundation beam. A plurality of prefabricated segmental bridges connected in sequence are fixed between the bent cap and the foundation beam. Steel hoops are arranged at the two ends of each prefabricated segmental bridge, the bent cap and the prefabricated segmental bridges are connected through the steel hoops, the adjacent prefabricated segmental bridges are connected through the steel hoops, and the prefabricated segmental bridges and thefoundation beam are connected through the steel hoops; a plurality of energy dissipation steel plates are arranged on the outer sides of the steel hoops, and unbonded prestressed tendons are arrangedin the centers of the prefabricated segmental bridges in a penetrating mode. When the self-resetting single pier column structure is under the action of a lateral load; under the springback effect ofthe unbonded prestressed tendons, the pier column structure has good self-resetting capacity, small residual deformation and convenience in structural repair, when the pier column structure laterallydeforms, the main body structure is in an elastic state, the energy dissipation steel plate is in a pulled or pressed state; the energy is dissipated through pulling and pressing yield of the energy dissipation steel plate, and the maximum deformation of the structure is controlled.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a self-resetting single pier structure utilizing steel plates to dissipate energy. Background technique [0002] The assembly of prefabricated segments is mainly used for the upper structure, and relatively less for the lower structure. The prefabricated assembled bridge piers that imitate the mechanical performance of cast-in-place bridge piers formed by the combination of prefabricated components and cast-in-place concrete can be called assembled integral bridge piers. Most of the prefabricated concrete piers that have been built or studied mostly belong to this category. This type of structure requires on-site wet work, and the construction procedures are complicated. The input energy of the earthquake is absorbed by all structural components. The deformation is large, and the repair cost is high or even impossible to repair. Contents of the invention [0003] The purpose ...

AI Technical Summary

Problems solved by technology

Most of the prefabricated concrete piers that have been built or studied mostly belong to this category. This type of structure requires on-site wet work, and the construction procedures are complicated. The input energy of the earthquake is absorbed by all structural components. Large deformation, high repair cost or even impossible repair

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