Method of forming a composite structural member

Details Method of forming a composite structural member Method of forming a composite structural member

1986-10-06

1987-12-08

Novosad, Stephen J.

Bridges

Transportable

14 6, 14 73, E01D 100

Patent

active

047109947

ABSTRACT:
A composite structural member is formed by fixedly mounting a prestressed concrete slab having compressive stress acting along pc steel wires buried therein on a beam. The compressive stress is thereafter released from the prestressed concrete slab by loosening a turnbuckle or the like provided in the prestressed concrete slab, so as to produce in the beam a tensile force acting in the same direction as the direction of the compressive stress acting in the prestressed concrete slab and a bending moment.
The slabs, placed in a side by side and end to end configuration, have undulated end surfaces spaced apart on a beam. The ends abut dowels fixed to the main beam. The space defined by the end surfaces with the dowels is filled with mortar to integrally fix the slab to the beam.

REFERENCES:
patent: 1818254 (1931-08-01), Hewett
patent: 2590685 (1952-03-01), Coff
patent: 3427772 (1969-02-01), Williams
patent: 4052131 (1977-11-01), Lowrigkeit
patent: 4125580 (1978-11-01), Lippert
patent: 4282619 (1981-08-01), Rooney
Composite Steel and Concrete Construction, Knowles, 4-1974, pp. 83-84, TA 664.K57.
Zero Maintenance Expansion Joints & Bearings, Watson, Watson Bowman Associates Inc, 8-1978, pp. 22, 24.

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