| 摘要 |
A roadway expansion joint is used in an expansion gap between adjacent sections of a bridge, parking deck, or other suitable structure to provide an uninterrupted road surface while permitting the structure to expand and contract when subjected to thermal changes. The joint is composed of a suitable elastomeric material and has a generally flat top surface with one or more exposed, tapered longitudinally-extending expansion grooves extending toward the bottom. The sides of the joint converge from the top to the bottom at an angle of between about 30 DEG and about 60 DEG . The bottom of the joint is parallel to and substantially narrower than the top and has one or more expansion grooves extending up therefrom, spaced laterally from the exposed grooves. Reinforcing plates are located along each side of the joint and bolt holes extend through the plate and the sides, and are spaced to coincide with studs or other fasteners extending out of the roadbed or bridge deck.
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