Self-resetting double-column pier system with replaceable shear energy consumption device: Fid-Bau Portal

Self-resetting double-column pier system with replaceable shear energy consumption device

JIA JUNFENG / WEI BO / LI YANSEN / BAI YULEI / GUO BINLI / GUO HE

The invention discloses a self-resetting double-column pier system with a replaceable shear energy dissipation device, and belongs to the technical field of bridge engineering, the self-resetting double-column pier system comprises an upper structure, a lower structure and a bearing platform, the lower structure is used for supporting the upper structure, and the lower structure comprises a left supporting system and a right supporting system which are symmetrically arranged; the left supporting system comprises a cover beam and a pier fixedly supported at the bottom of the cover beam, a shear energy consumption device is connected between the cover beam of the left supporting system and the cover beam of the right supporting system, and the pier is connected with the bearing platform in a swinging mode. The shear energy dissipation device dissipates energy when relative displacement occurs between the cover beams of the left supporting system and the right supporting system. By the adoption of the bridge system, the energy dissipation efficiency of the energy dissipation device can be fully exerted, and the energy dissipation capacity, the reset force and the anti-overturning capacity of the pier can be improved.

本发明公开了一种带有可更换剪切耗能装置的自复位双柱墩体系，属于桥梁工程技术领域，包括上部结构、用于支撑所述上部结构的下部结构和承台，所述下部结构包括对称设置的左支撑体系和右支撑体系，所述左支撑体系包括盖梁、固定支撑在所述盖梁底部桥墩，所述左支撑体系和右支撑体系的盖梁之间连接有剪切耗能装置，所述桥墩与所述承台之间摇摆连接，所述剪切耗能装置在左支撑体系和右支撑体系的盖梁之间发生相对位移时进行耗能。采用本发明桥梁体系，可以充分发挥耗能装置耗能效率，还能提高桥墩耗能能力以及提高桥墩复位力和抗倾覆能力。

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