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An expansion joint on the Cornish Main Line, England. If a railway track runs over a bridge which has expansion joints that move more than a few millimeters, the track must be able to compensate this longer expansion or contraction. On the other hand, the track must always provide a continuous surface for the wheels traveling over it.
Pin and hanger assembly. A pin and hanger assembly is used to connect two plate girders of a bridge.These assemblies are used to provide an expansion joint in the bridge. One beam (the anchor span) is set on a pier with a short section cantilevered out toward the next pier.
This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government , the image is in the public domain .
The omission of the expansion joint removes a pathway for the penetration of chloride-bearing road salts to the bridge's sub-structure. In the United Kingdom there is a presumption that most new short to medium length bridges will be of the integral type. [citation needed] An early example of an integral bridge is masonry arch bridge.
Slip joints are common under conditions where temperature changes can cause expansion and contraction that may overstress a structure. These are generally referred to as expansion joints. Bridges and overpasses frequently have sliding joints that allow a deck to move relative to piers or abutments.
They are differentiated according to the three basic types of movement: axial, angular and lateral expansion joints. Expansion joints have usage in various sectors, like energy production, paper industry, chemical industry, water treatment, oil and gas. Expansion joints can be used wherever thermal movements or vibration occurs in pipelines.
Hinged Expansion Joint - U.S. Bellows, Inc. They include hinges, attached to the expansion joint ends with a pair of pins, which allow angular movement in a single plane, restrain the pressure thrust, and prevent the expansion joint from deflecting axially, either in extension or compression. [ 2 ]
Application of Rubber Bridge Expansion Joints: Modular Bridge Expansion Joint is used in Highway bridge decks, Service ramps, Multi- storey car parks and so on. Modular Bridge Expansion Joint is used to prevent buildings or bridges appear some cracks because of climate change. Construction programs of Rubber Bridge Expansion Joints: (1) Set out ...