Expansion joint system for accommodation of large movement in multiple directions
First Claim
1. An expansion joint system for roadway construction wherein a gap is defined between adjacent first and second roadway sections, said expansion joint system extending across said gap to permit vehicular traffic, said expansion joint system comprising:
- transversely extending, spaced-apart, vehicular load bearing members;
elongated support members having opposite ends positioned below said transversely extending load bearing members and extending longitudinally across said gap; and
means for controlling the spacing of said vehicle load bearing members relative to one another comprising pivoting arms that are slidably engaged with at least one of said vehicle load bearing members, wherein said pivoting arms are adapted to slide along an elongated guide engaged with said vehicle load bearing members.
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Accused Products
Abstract
An expansion joint system which is provided to accommodate forces applied to highway construction during normal changes in ambient conditions, and which is also designed to withstand seismic forces and vehicular forces, which may be applied in transverse and longitudinal directions. The system includes spaced-apart transverse vehicle load bearing members which are placed in a gap defined between adjacent sections of highway construction, longitudinally extending support members positioned beneath the load bearing members, means embedded within the adjacent roadway sections that control longitudinal, transverse and vertical movement, and a mechanism for controlling the spacing between the transverse load bearing beams. Preferably, this mechanism maintains a substantially equal distance between the transverse load bearing beam members.
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Citations
21 Claims
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1. An expansion joint system for roadway construction wherein a gap is defined between adjacent first and second roadway sections, said expansion joint system extending across said gap to permit vehicular traffic, said expansion joint system comprising:
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transversely extending, spaced-apart, vehicular load bearing members; elongated support members having opposite ends positioned below said transversely extending load bearing members and extending longitudinally across said gap; and means for controlling the spacing of said vehicle load bearing members relative to one another comprising pivoting arms that are slidably engaged with at least one of said vehicle load bearing members, wherein said pivoting arms are adapted to slide along an elongated guide engaged with said vehicle load bearing members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification