Self-Opening Displacement Hydraulic Energy Absorber

Abstract

The invention discloses a self-starting displacement type hydraulic suction energy dissipater. The energy dissipater comprises a steel box girder, a rotating drum, a lifting rope, a holding device and a hanging basket, wherein the rotating drum and the holding device are mounted on the steel box girder; one end of the lifting rope is fixed on the rotating drum and the other end of the lifting rope is connected with the hanging basket; the holding device is capable of holding the lifting rope; the hanging basket comprises an outer hanging basket frame, a valve seat, a valve element, a guide rod and a spring; the outer hanging basket frame is in a cuboid-shaped box structure with an opening formed in the lower end; a water hole is formed in a top plate of the outer hanging basket frame; a cover plate is arranged at the water hole; the valve seat is in a tubular structure and is mounted on the top plate of the outer hanging basket frame; a central circular disk is fixed in the valve seat; the upper end of the guide rod is fixedly mounted on the central circular disk; a magnet is fixed on the bottom surface of the central circular disk; the valve element is arranged on the guide rod; the spring is arranged between the lower end of the guide rod and the valve element. The energy dissipater is simple in structure and convenient to operate, and can inhibit the bridge vibration through hydraulic suction consumption power and structural vibration kinetic energy transmitted to water.

Description

Self-opening displacement hydraulic energy absorber technical field The invention relates to an energy consumer, in particular to a self-opening displacement hydraulic suction energy consumer. Background technique Long-span suspension bridges can cross large rivers and can avoid the construction of deep-water foundations and are widely used. However, due to its large span and small damping of steel box girders and main cables, it is very easy to cause large torsion or combined bending-torsional vibration under the action of strong winds, resulting in bridge damage. The problem of its wind resistance stability is the main factor that limits its further span. influencing factors. Increasing the damping of the suspension bridge can significantly improve its wind resistance stability, but the super-long-span suspension bridges are mostly located on the channel with heavy traffic. In order to ensure the safety of navigation, it is difficult to install permanent fixed facilitie...

AI Technical Summary

Problems solved by technology

The length of the damper is small compared to the span of the suspension bridge, so it is difficult for the existing damper to improve the damping of the steel box girder or main cable of the suspension bridge

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