Buffer energy dissipation and anti-collision bridge anti-seismic block structure

Abstract

The invention discloses a bridge anti-seismic block structure for buffering energy dissipation and resisting collisions, which comprises a cover beam, a beam body, and several fishhook-shaped steel bars. A friction pendulum support is arranged on the top surface of the cover beam, and the beam body supports On the friction pendulum support, the two ends of the cover beam are respectively extended upward to form stoppers, and one section of the fishhook-shaped steel bar is embedded in the stopper, and the exposed section of the fishhook-shaped steel bar Cover with a layer of rubber. In the strong earthquake process, the present invention can effectively buffer the impact on the bridge anti-seismic block when the horizontal displacement of the beam body is too large through the bending deformation of several fishhook-shaped steel bars and the outsourcing rubber layer, dissipate the seismic energy, and reduce the The occurrence of beam drop accidents on the transverse bridge and the improvement of the overall seismic performance of the bridge structure.

Description

technical field [0001] The invention relates to the technical field of bridge anti-seismic and bridge anti-seismic isolation, in particular to a bridge anti-seismic block structure for buffering energy dissipation and resisting collision. Background technique [0002] my country is an earthquake-prone country. Many earthquake disasters in recent years have shown that damage to structural components and even catastrophic collapse accidents are not uncommon due to insufficient seismic resistance of bridge structures and unreasonable design of shock-absorbing and isolation measures, seriously affecting rescue in earthquake-stricken areas. And post-disaster reconstruction work has brought huge direct and indirect economic losses to people. How to ensure the safety of bridge structures in earthquakes, how to select and design superior anti-seismic and shock-absorbing devices to achieve the purpose of improving the anti-seismic performance of bridges, It has always been an important...

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Problems solved by technology

[0002] my country is an earthquake-prone country. Many earthquake disasters in recent years have shown that damage to structural components and even catastrophic collapse accidents are not uncommon due to insufficient seismic resistance of bridge structures and unreasonable design of shock-absorbing and isolation measures, seriously affecting rescue in earthquake-stricken areas. And post-disaster reconstruction work has brought huge direct and indirect economic losses to people. How to ensure the safety of bridge structures in earthquakes, how to select and design superior anti-seismic and shock-absorbing devices to achieve the purpose of improving the anti-seismic performance of bridges, It has always been an important topic in the development of bridge engineering

[0003] Under the action of strong earthquakes, the transverse bridge displacement of the beam body is relatively large, and the transverse block is prone to impact damage. The main reason is that the impact of the beam body on the block has not been effectively buffered under the action of strong earthquakes, and the energy during the impact has not been dissipated

[0004] The applicant read a large number of domestic and foreign documents and patents on anti-seismic, anti-seismic and isolation of bridges and found that many existing bridge anti-seismic devices have complicated manufacturing processes, inconvenient construction and high cost

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