Rubber bridge expansion joint

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bridge expansion joint

Dacheng bridge rubber expansion joints are structural components designed to provide smooth passage over the gap between adjacent sides of a deck joint, while also permitting relative translation and/or rotation of the two sides of a bridge deck (deck movement joint).

A deck movement joint is generally defined as a structural discontinuity between two elements, at least one of which is a deck element, and is designed to allow relative translations and rotations due to: thermal expansion and contraction of the superstructure, concrete shrinkage or creep, elastic shortening due to pre-stressing, displacement of the structure under load, or any other action the desk is subjected to.

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Bridge expansion joints are designed to accept both horizontal and vertical loads due to traffic in accordance with the road engineering technical standards JTJ-88(1995).