Restraint assembly for bridge roadway expansion joints
AssigneeFox Industries, Inc.
InventorCarl W. Scheffel
Life of this patent
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Abstract
A restraint assembly for bridge roadway expansion joints incorporates elastomer pads which resiliently mount a center channel of the expansion joint on a transverse support member thereby eliminating metal-to-metal contact and the production of objectionable noise.
Claims9
An expansion joint used to connect sections of bridge roadway comprising a pair of parallel spaced apart side channels which run substantially the width of a roadway, a center channel disposed between said parallel channels, a pair of seals disposed, one each between said side channels and said center channel, at least one support bar disposed transversely to said channels, hold-down means connecting said side channels and said support bar, and restraint assembly means connecting said support bar and said center channel, said restraint assembly means including a restraint member connected to said center channel and having portions extending above and below said support bar, an upper resilient pad disposed above said support bar between said support bar and said restraint member, and a lower resilient pad disposed below said support bar between said support bar and said restraint member permitting relative motion between said support bar and said center channel thereby eliminating unwanted noise while allowing movement necessary for expansion and contraction of said expansion joint.
Dependencies are inferred from the claim text.