Bridge expansion joint

Details Bridge expansion joint Bridge expansion joint

1976-08-16

1977-06-21

Byers, Nile C.

Bridges

Truss

Arrangement

404 69, 52573, E01D 1906

Patent

active

040301567

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.

REFERENCES:
patent: 1799574 (1931-04-01), Ward
patent: 2013195 (1935-09-01), Ward
patent: 3482492 (1969-12-01), Bowman
patent: 3606826 (1971-09-01), Bowman
patent: 3648423 (1972-03-01), Cole
patent: 3788758 (1974-01-01), Scheffel
patent: 3830583 (1974-08-01), Becht
patent: 3904304 (1975-09-01), Honegger
patent: 3907443 (1975-09-01), McLean

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