Static structures (e.g. – buildings) – Machine or implement
Patent
1991-01-28
1992-06-09
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Machine or implement
52723, 52729, E04C 334
Patent
active
051196140
ABSTRACT:
A concrete post and panel noise barrier in which the opposed side walls of the post contain vertical grooves for slidably receiving the panels. Each post further contains two parallel rows of vertically disposed reinforcing bars positioned adjacent the front and back walls of the post. The two rows of reinforcing bars are further strengthened by horizontally disposed connector units that include an endless tie rod positioned between the grooves that loops around at least one bar in each row and a pair of stirrup wires that pass around the outside of the rows of reinforcing bars. The ends of each stirrup wire are turned inward about the end bars in the row and are crossed over each other before being brought into engagement with the tie rod.
REFERENCES:
patent: 411360 (1889-09-01), Stempel
patent: 1045521 (1912-11-01), Conzelman
patent: 1572669 (1926-02-01), Muller
patent: 1714949 (1929-05-01), Collier et al.
patent: 2020407 (1935-11-01), Forster
patent: 3577504 (1971-05-01), Lipski
Commonwealth of Pennsylvania, Dept. of Transportation, "Submission Procedures for Noise Barrier".
Ridgill, Jr. James L.
Superior Precast
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