Post-tensioned concrete slab

Details Post-tensioned concrete slab Post-tensioned concrete slab

1981-02-17

1984-02-21

Bell, J. Karl

Static structures (e.g., buildings)

Tensioned or flexed sheet facing

52223R, E04B 106

Patent

active

044321759

ABSTRACT:
A method and apparatus for post-tensioning a concrete slab. A tendon member is pre-formed to define an enclosed area yet fit within a form. The tendon member has ends which extend past the form. Concrete is poured around the tendon with the tendon being positioned within the periphery of the concrete structure to form a large central area bounded by the tendon and an exterior portion which surrounds the enclosed area of the tendon. The tendon is anchored within said concrete by anchors secured to the ends of the said tendon and placed under an original tension of around 28,000 p.s.i.

REFERENCES:
patent: 3673644 (1972-07-01), Howlett et al.
patent: 3869530 (1975-03-01), Williams
patent: 3950840 (1976-04-01), Dietrich
patent: 4045929 (1977-09-01), VeloDalbrenta
patent: 4185440 (1980-01-01), Finsterwalder

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