Zone Equidistance Control Expansion Joint System
AssigneeConstruction Research & Technology GmbH
InventorPaul Bradford
Life of this patent
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Abstract
A modular-type expansion joint system for bridging a gap that is located between spaced-apart structural members. The expansion joint system may be utilized, for example, in bridges, highways, and tunnel constructions where gaps are formed between spaced-apart, adjacent concrete sections. The expansion joint system includes vehicular load bearing members and support members. Seals are located between the vehicular load bearing members. The expansion joint system includes zones of differing movement capabilities in response to displacement events.
Claims19
An expansion joint system for a gap defined between adjacent first and second structures comprising:
- a plurality of transversely extending vehicular load bearing members having top surfaces exposed to traffic and bottom surfaces opposite said top surfaces;
- at least one support member positioned below said transversely extending load bearing members and extending longitudinally across said expansion joint from said first structure to said second structure;
- and
- housings for accepting opposite ends of said at least one support member;
- wherein said expansion joint system comprises a plurality of zones wherein movement of the vehicular load bearing members in a particular zone occurs in response to a different level of movement within the structure.
An expansion joint comprising:
- spaced-part structural members;
- and
- an expansion joint system bridging the gap between the structural members, wherein the expansion joint system comprises
- a plurality of vehicle load bearing members extending transverse to the direction of traffic crossing the expansion joint gap;
- a plurality of elongated support members that are positioned below the transversely extending load bearing members and extend longitudinally across the expansion joint gap;
- housings for receiving the opposite longitudinal ends of the elongated support bar members;
- and
- wherein said expansion joint system comprises a plurality of zones wherein movement of the vehicular load bearing members in a particular zone occurs in response to a different level of movement within the structure.
Dependencies are inferred from the claim text.