The present application relates to a kind of
damper device of double-layer steel truss beam arch
combination system bridge, comprising: oil cylinder, oil cylinder two ends are connected with end bridge body and suspender respectively,
piston is slidably connected in oil cylinder,
piston end towards suspender is rotatably connected with pull rod, pull rod extends out of oil cylinder and is fixedly connected with outer tube, outer tube is slidably sleeved on oil cylinder;Multiple flow-through holes are opened on
piston, and flow-through hole is inclinedly penetrated through piston in ring direction.The beneficial effects of the present application are: piston is arranged in damping device, piston and pull rod are rotatably connected, and the
kinetic energy of damping medium is converted into friction heat by setting inclined flow-through hole, and then the energy brought by vibration is consumed, to play the role of buffering and
energy consumption;Several flow-through holes are arranged on piston, and part of flow-through hole is provided with elastic pad, by setting
metal sheet with different bending strength, piston is provided with elastic pad that is opened correspondingly under different vibration, so that
damper can automatically adjust
energy consumption effect.