Support system for a multiple-span bridge

Details Support system for a multiple-span bridge Support system for a multiple-span bridge

1985-03-22

1987-06-02

Novosad, Stephen J.

Bridges

Truss

Arrangement

14 73, 52262, E04C 302

Patent

active

046691430

ABSTRACT:
A support system for a multiple-span bridge constructed of reinforced concrete or prestressed concrete includes a primary structure and a secondary structure. The primary structure bridges the spans between intermediate supports or between an abutment and an adjacent intermediate support and includes serially arranged support members elongated in the long direction of the bridge. The width of the support members is a fraction of the full useful width of the bridge. The secondary structure forms the roadway slab and is supported on the primary structure. The secondary structure is made up of serially arranged individual roadway sections extending in the long direction of the bridge. The roadway sections are supported by bearing members resting directly on the support members of the primary structure with the roadway sections being closely spaced in the elongated direction of the bridge as compared to the spans between the intermediate members and the abutments. The roadway sections extend over the expansion joints between the support members. The roadway sections can have a dimension in the elongated direction which is comparable to that of the support members or which is a multiple of the length of the support members. The support members can be constructed in place on the bridge, while the roadway sections can be constructed at a single site and then moved over the support members into their final position on the bridge.

REFERENCES:
patent: 4123815 (1978-11-01), Neff

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