Steel damping anti-drop-beam device

Abstract

The invention discloses a steel damping anti-falling beam device, which comprises a cylinder; a damping system is arranged inside the cylinder, one end of the damping system is fixedly connected to the right cover plate, the other end is fixedly connected to a sliding connecting rod, and the free end of the sliding connecting rod Pass through the left cover plate and extend to the outside of the cylinder. An outer limit baffle and an inner limit baffle are arranged on the sliding link on both sides of the left cover plate. The outer side of the right cover plate is fixedly connected with the fixed link. The damping system is composed of a damper. The damper includes an outer ring, an inner ring and support ribs evenly arranged between the outer ring and the inner ring. An annular groove is arranged on the outer side of the outer ring, and an annular groove is arranged on the outer side of the annular groove. The groove is sealed with a matching ring-shaped cover plate, and the ring-shaped groove is filled with ethylene glycol liquid. The ring-shaped cover plate includes a plurality of arc-shaped plates evenly distributed in the circumferential direction, and the arc-shaped plates are connected by rubber blocks. The steel damping anti-drop beam device of this structure improves the anti-fall effect and stability, and avoids secondary damage.

Description

technical field [0001] The invention relates to a steel damping anti-drop beam device. Background technique [0002] It can be seen from the previous earthquake damages that the most frequent failure form of bridge structures is the falling beam failure. Falling beam damage refers to the separation of the upper structure of the bridge from the supporting lower structure, that is, the main girder is separated from the pier or abutment, causing the main girder to hang, break, or fall. The reason for the falling beam failure is that the supporting length between the superstructure and the substructure of the bridge is too small to cope with the excessive seismic displacement of the superstructure. However, if the support length is set according to the seismic analysis results, the size of the substructure will often be too large and the economy will be poor. In the field of anti-seismic bridges, there are many studies on anti-fall beam devices, but most of them are limited to...

AI Technical Summary

Problems solved by technology

When the rigid components function, the force on the structure increases suddenly, which will cause local damage to the connection parts, and then cause the failure of the anti-drop beam device

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