EXPANSION JOINT AND BRIDGE JOINT SEALS

摘要

1315797 Expansion joint seals D S BROWN CO 7 Feb 1972 [22 July 1971] 5581/72 Heading E1B A hollow elastomeric expansion joint seal with internal truss structure and upper and lower walls in the form of a shallow W or M cross-section has substantially flat sidewalls each formed with a longitudinal rib 11a or 12a at its mid portion. In modifications the truss structure is connected to the apices and radius of the W and M by short vertical walls, and the inclined walls 42, 43 may meet the side walls at slightly spaced apart points. In another modification three parallel longitudinally extending substantially diamond shaped cavities are formed.