Bridge collision buffer seismic structure

Abstract

The invention discloses a bridge collision buffering anti-seismic structure, which is arranged at the junction of a cover beam and a beam body of the bridge to strengthen the anti-seismic ability of the bridge. The top surface of the cover beam is provided with a friction pendulum support, and the beam body is supported on the friction pendulum support; the two ends of the cover beam are respectively extended upward to form a stopper; each stopper is embedded with two L-shaped steel plates on the side of the beam body The end of the L-shaped steel plate has a certain slope angle; the surface of the stopper between the two L-shaped steel plates is provided with a rubber layer; the distance between the two L-shaped steel plates is disposed with a certain number of arc-shaped steel bars, and the rubber layer is disposed at a certain distance. Steel embedded parts are arranged on the side of the beam body. During strong earthquakes, the invention can effectively buffer the impact of the main girder on the stopper under the action of the earthquake, dissipate the seismic energy, thereby limiting the larger displacement of the beam body and preventing the occurrence of beam falling accidents.

Description

technical field [0001] The invention relates to the technical fields of bridge anti-seismic and bridge anti-seismic isolation, in particular to a bridge collision buffer anti-seismic structure. Background technique [0002] In recent decades, large earthquakes have occurred frequently at home and abroad, which have caused serious damage to modern bridge structures. The bridge structure is the throat of the traffic network, and my country is an earthquake-prone country. It is not uncommon for structural members to be damaged or even catastrophically collapsed due to the lack of earthquake resistance of the bridge structure itself. The severe earthquake damage of the bridge structure will not only directly bring serious Moreover, the interruption of the traffic artery in the earthquake area will seriously affect the timely development of post-earthquake rescue work, aggravate secondary disasters, and lead to further increase in economic losses. How to ensure the safety of brid...

AI Technical Summary

Problems solved by technology

The applicant has read a large number of domestic and foreign documents and bridge anti-seismic, anti-seismic and isolation patents and found that many existing bridge anti-seismic devices with collision buffer function have high manufacturing and processing requirements, inconvenient construction and high cost

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