Method for fabricating pretensioned concrete structures
OwnerJean Mullerinventor
Life of this patent
Estimating the term…
Abstract
A novel method for fabricating pretensioned concrete structures includes the steps of: (a) arranging one or more cables between a first anchoring station and a second anchoring station; (b) tensioning the cables between the anchoring stations at a selected tension load and in a selected cable position; (c) casting one or more concrete structures around the cables at a selected location between said anchoring stations; and (d) repeating steps (b) and (c) using different tension load and/or cable position selections in step (b).
Claims18
A method for fabricating pretensioned concrete structures, comprising the steps of:
- (a) arranging one or more cables between a first anchoring station and a second anchoring station;
- (b) tensioning said one or more cables between said anchoring stations at selected one or more tension loads and in selected one or more cable positions;
- (c) casting one or more concrete structures around said cables at a selected location between said anchoring stations;
- and
- (d) repeating steps (b) and (c) using different tension loads and cable position selections in step (b) for one or more of said cables until a composite structure of desired configuration is constructed.
A method for fabricating a pretensioned concrete structure using an apparatus for pretensioning a concrete structure, the apparatus including a tensioning bed, first and second anchor blocks at spaced apart locations on the tensioning bed, the anchor blocks having one or more cable bores formed therein, said method comprising the steps of:
- (a) arranging one or more cables between said first and second anchor blocks;
- and
- (b) iteratively performing the steps of (i) tensioning said one or more cables between said anchor blocks at selected tension loads and cable positions, and (ii) casting one or more concrete structures around said cables until a composite concrete structure of desired configuration is constructed;
- and
- (c) changing the selected cable position of at least one cable for at least one iteration of step (b).
A method for fabricating a pretensioned concrete structure using an apparatus for pretensioning a concrete structure, the apparatus including a tensioning bed, a pair of first and second anchoring stations at spaced apart locations on the tensioning bed, the anchoring stations having one or more cable bores formed therein and anchors for securing one or more cables, said method comprising the steps of:
- (a) arranging one or more cables between said first anchoring station and said second anchoring station;
- (b) tensioning said one or more cables between said anchoring stations at selected tension loads and in selected cable positions representing predetermined distances above said tensioning bed;
- (c) casting one or more concrete structures around said one or more cables at a selected location between said anchoring stations, using said tensioning bed as a lower base;
- and
- (d) repeating steps (b) and (c) using successively increasing cable position selections in step (b), said cable position selections being increased by adjusting said cable anchors to raise the height of said cables above said tensioning bed.
Dependencies are inferred from the claim text.