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US 2022/0145621 A1Published application
Composite column formwork and method of use
AssigneeForma Technologies Inc.
InventorScott Armstrong
Life of this patent
Estimating the term…
Abstract
The disclosure presents a composite column formwork which utilizes a fiber reinforced polymer (FRP) stay in place container which incorporates horizontally coplanar support chairs bonded to the interior surface, closed ties bonded to the support chairs and a plurality of longitudinal rebar enforcements bonded to the closed ties. All of the components in a preferred embodiment are formed of a fiberglass material.
Claims20
A drilled pier formwork comprising:
- an external fiberglass container having an interior surface and an exterior surface;
- a plurality of horizontally coplanar support chairs bonded to the interior surface;
- a closed tie bonded to the plurality of horizontally coplanar support chairs;
- and,
- a plurality of longitudinal rebar reinforcements bonded to the closed tie.
2 more elements
A composite drilled pier comprising:
- an external fiberglass container having an interior surface and an exterior surface;
- a plurality of horizontally coplanar support chairs bonded to the interior surface;
- a closed tie bonded to the plurality of horizontally coplanar support chairs;
- a plurality of longitudinal rebar reinforcements bonded to the closed tie;
- and,
- a cured concrete filling, within the external fiberglass container, surrounding the plurality of horizontally coplanar support chairs, the closed tie and the plurality of longitudinal rebar.
3 more elements
A method of forming a stay in place column comprising:
- providing an external fiberglass container having an interior surface and an exterior surface;
- providing a plurality of horizontally coplanar support chairs bonded to the interior surface;
- providing a closed tie bonded to the plurality of horizontally coplanar support chairs;
- a plurality of longitudinal rebar reinforcements bonded to the closed tie;
- filling the interior surface with concrete;
- allowing the concrete to cure;
- and,
- allowing the external container to remain in place.
5 more elements
Dependencies are inferred from the claim text.