Road bridge construction with precast concrete modules

Details Road bridge construction with precast concrete modules Road bridge construction with precast concrete modules

1976-12-27

1977-10-04

Byers, Nile C.

Bridges

Arch

Abutments and anchorages

61 47, 14 75, E01D 1902

Patent

active

040515702

ABSTRACT:
Precast concrete footings, stretchers, road slabs, and curbing in conveniently transportable sizes are used to construct road bridges and supporting abutments with a minimum of heavy equipment at the construction site. Each stretcher module comprises an elongated concrete body having at least two support heads with flat upper and lower surfaces for stacking one on another. All support heads are equally spaced and each contains a vertical hole for receiving a steel tie rod that extends from the footing to the top surface of the abutment for tying together the stacked stretchers. Anchor rods to deadmen and lateral tie rods interconnecting the wing walls of the abutment are connected to the vertical tie rods to form a rigid interlocked retaining structure for supporting the prestressed concrete road slabs.

REFERENCES:
patent: 534032 (1895-02-01), Clymer
patent: 932261 (1909-08-01), Flynn
patent: 2315441 (1943-03-01), McDaniel
patent: 2828613 (1958-04-01), Wilson
patent: 3464211 (1969-09-01), Anderson
patent: 3631682 (1972-01-01), Hilfiker
patent: 3922864 (1975-12-01), Hilfiker
patent: 3981038 (1976-09-01), Vidal

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