Bridge expansion joint
AssigneeA. J. Harris & Sons, Inc.
InventorPaul J. Raymond
Life of this patent
Estimating the term…
Abstract
An improved modular expansion joint having proportioning bars to provide support for and to center the beams which run longitudinally in the gap being joined. The proportioning bars extend across the gap under and at an angle to the beams. The ends of the bars slide in channels formed in the ends of the pavement sections being joined. As the gap narrows, the angle between the bars and the beams becomes more acute. Each beam is connected to at least a pair of bars and its position in the gap is thereby controlled. Removable caps are provided on each beam to accommodate replacement of the resilient seals between the beams.
Claims17
An expansion joint for use in a gap between pavement sections comprising:
- at least one beam running longitudinally in the gap and having a wearing surface substantially coplanar with the wearing surfaces of the pavement sections;
- at least a pair of proportioning bars for supporting each beam, said bars extending across the gap at an acute angle with the general line of direction of the gap, and each of said bars being rotatably connected to its associated beam;
- a glide channel formed in the ends of each of the pavement sections being joined and defining the permissible motion of an end of each of the proportioning bars as substantially linear in the general line of direction of the gap;
- and
- means for slidably mounting the ends of the proportioning bars in the glide channels.
An expansion joint for use in a gap between pavement sections comprising:
- at least one beam running longitudinally in the gap and having a wearing surface substantially coplanar with the wearing surfaces of the pavement sections;
- a resilient seal between each pair of beams and between each beam and the end of a pavement section;
- at least a pair of proportioning bars, said bars extending across the gap at an acute angle with the general line of direction of the gap;
- a glide channel formed in the ends of each of the pavement sections being joined and defining the permissible motion of an end of each of the proportioning bars as substantially linear in the general line of direction of the gap;
- means for slidably mounting the ends of the proportioning bars in the glide channels.
Dependencies are inferred from the claim text.