Fluid viscous damper with working switch

Abstract

The invention provides a fluid viscous damper with a working switch, and belongs to the technical field of structural energy consumption to absorb shock (vibration). The fluid viscous damper of the working switch is characterized in that a fixed connecting rod is arranged between a piston rod end connecting rod and a fixed end on one side of the typical fluid viscous damper, an inner sleeve rod and a cylindrical outer sleeve are relatively sliding, and the fixed connecting rod prevents a damper piston and an outer wall of a hydraulic cylinder from relatively moving; when the displacement of the inner sleeve rod reaches a stated maximum displacement value, a brake switch on a pop-up stopper in the outer sleeve is contacted, and the pop-up stopper pops up and clamps a brake head of an inner sleeve rod end together with a fixed stopper, so that the inner sleeve rod is locked and does not slide relative to the outer sleeve, the fixed connecting rod is stressed and destroyed by an impact force, and the damper begins to consume energy for shock absorption. The fluid viscous damper with the working switch has the effects and advantages that the fluid viscous damper is expected to be applied to structures such as a suspension bridge provided with a central buckle or a cable-stayed bridge provided with a floating system, the service life of the damper can be prolonged, and the damper is enabled to play a role of correspondingly consuming energy for shock absorption when a large shock occurs.

Description

technical field [0001] The invention belongs to the technical field of structural energy consumption shock (vibration) reduction, relates to the design of bridges and building structures, and in particular to a liquid viscous damper with an operating switch. Background technique [0002] Liquid viscous dampers have been widely used in bridge structures and building structures, not only opening up a new world of bridge engineering and building structure engineering, but also solving many problems that traditional structures cannot solve. However, since the liquid viscous damper was produced, oil leakage has always been a problem that has plagued everyone. [0003] After the damper is placed on the bridge and starts to serve, the dynamic load it faces every day is the small movement generated by the daily operation of the bridge, such as the vibration generated by the pulsating wind, the impact and vibration of the bridge caused by frequent passing vehicles, especially when fl...

AI Technical Summary

Problems solved by technology

[0005] Although the fuse-type liquid viscous damper can prevent the damper from working under normal loads such as wind, temperature, brakes, and small earthquakes, and prolong the life of the damper, for suspension bridges and cable-stayed bridges with floating or semi-floating systems, Fusible liquid viscous dampers cannot solve the critical problem of loosening constraints in daily working conditions

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