Method of forming a concrete column capital in a standard flat plate concrete slab
OwnerMark Westinventor
Life of this patent
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Abstract
A method of forming a concrete column capital using a flexible tension membrane material in place of the traditional rigid panels currently used for this purpose, is described. A flexible tension membrane material is attached to an opening in a panelized flat slab formwork deck located directly above a pre-existing concrete column. The membrane forms a bag-like container which contains and supports the wet concrete, and serves to form a column capital between the column and the flat slab above. Also disclosed are methods for anchoring the flexible tension membrane capital form to a panelized flat slab formwork deck.
Claims9
A method of forming a concrete capital connecting a flat reinforced concrete slab with a pre-existing support column, comprising:
- (a) providing a flat slab formwork deck that includes an opening directly above the pre-existing column;
- (b) forming a flexible sheet into a hollow frustum configuration, in which the sheet has an outer edge area approximating the size of the deck opening and an inner edge area sized to fit around vertical side surfaces of the pre-existing column;
- (c) forming a compression ring sized to fit snugly within the deck opening, and attaching said compression ring to outer edge areas of the flexible sheet;
- (d) placing the compression ring and attached flexible sheet in the deck opening;
- (e) clamping the inner edge area of the flexible sheet to side surfaces of the pre-existing column;
- and
- (f) pouring wet concrete onto the flat slab formwork and said flexible sheet so as to form a flat slab and column capital connected to the support column.
A method of forming a concrete capital connecting a flat reinforced concrete slab with a pre-existing support column, comprising:
- (a) providing a flat slab formwork deck that includes an opening directly above the column;
- (b) forming a compression ring by connecting rigid ring components into an annular ring configuration;
- (c) attaching a flexible sheet to said compression ring by securing edge areas of said sheet to said ring components;
- (d) installing said compression ring in the deck opening, and attaching inner edge areas of said sheet to vertical side surfaces of the column so that the sheet is supported soley by its attachment to the compression ring and column;
- and
- (e) pouring wet concrete onto said flat slab formwork deck and said sheet, so as to form a concrete flat slab and column capital connected to the support column.
Dependencies are inferred from the claim text.