Articulated vertical displacement limiting device is composed by embedded components, base, gusset plate, rubber gaskets, piston rod, sleeve, etc. The ends of the piston rod are spherical structure design, and the piston and the base and the gusset plate installed and then formed articulated structure so that to adapt bridge rotation. Rubber washer stuffing between the plate and gusset plate will cushion the impact of beam and pier. The height of articulated displacement limiting device can be manual adjusted, and convenient to installation.
Articulated vertical displacement limiting device can be as falling-off prevention structure of simple beam and continuous beam of small and medium-sized span. The both sides are anchored in the side of beam and pier and to meet the rotating and displacement of bridge. When the displacement of bridge reaches design displacement, the device has enough power to avoid further displacement. When the displacement disappears and the bridge return to original state, the rubber washer will take buffer action and reduce the damage of beam and pier.
The 3rd bridge of Caijiacun of Shanghai - Kunming passenger railway, Guoziyuan Bridge