System and method of reinforcing a column positioned proximate a blocking structure
View Patent ↗A method of reinforcing a column positioned proximate a blocking structure that prevents wrapping a sheet material completely about the column. The column includes an exterior perimeter surface portion extending between first and second intersections with the blocking structure so that the exterior perimeter surface portion is accessible from one side of the blocking structure. A first opening is formed in the column and/or the blocking structure. The first opening is located proximate the first intersection of the exterior perimeter surface portion of the column and the blocking structure. A portion of the first fiber anchor is inserted through the first opening. The first fiber anchor has at least a first end. The first end of the first fiber anchor is secured to the exterior perimeter surface portion of the column. An outer fibrous sheet is applied to the exterior perimeter surface portion.
1. A load bearing structure comprising:
a blocking structure;
a column having a perimeter surface positioned proximate the blocking structure such that an exterior perimeter surface portion of the column extends between first and second intersections with the blocking structure and an inaccessible surface portion of the column is blocked by the blocking structure, the blocking structure extending substantially an entire height of the column;
a first opening in at least one of the column and the blocking structure, the first opening being located proximate the first intersection;
a second opening in at least one of the column and the blocking structure, the second opening being located proximate the second intersection;
an inner fibrous sheet disposed on the exterior perimeter surface portion of the column;
a first fiber anchor received in the first opening and having a first end secured to the inner fibrous sheet; and
an outer fibrous sheet disposed over the inner fibrous sheet;
wherein the first end of the first fiber anchor is sandwiched between the inner fibrous sheet and the outer fibrous sheet.
2. The load bearing structure of claim 1 further comprising a second fiber anchor received in the second opening and having a first end secured to the inner fibrous sheet, wherein the first end of the second fiber anchor is sandwiched between the inner fibrous sheet and the outer fibrous sheet.
3. The load bearing structure of claim 1 wherein the inner fibrous sheet is coextensive with the outer fibrous sheet.
4. The load bearing structure of claim 1 wherein the inner and outer fibrous sheets extend across the exterior perimeter surface portion from adjacent the first intersection to adjacent the second intersection.
5. The load bearing structure of claim 1 wherein the first end of the first fiber anchor includes splayed fibers connecting the first end of the first anchor to the inner fibrous sheet.
6. The load bearing structure of claim 1 further comprising a passageway through at least one of the column and blocking structure connecting the first opening and the second opening.
7. The load bearing structure of claim 6 wherein the first fiber anchor comprises a second end, the second end is secured to the inner fibrous sheet, and the second end is sandwiched between the inner fibrous sheet and the outer fibrous sheet.
8. The load bearing structure of claim 1 further comprising at least a third opening in the exterior perimeter surface portion of the column, and a third anchor received in the third opening.
9. The load bearing structure of claim 8 wherein the third anchor includes a first end having splayed fibers connecting the first end to the inner fibrous sheet.
10. The load bearing structure of claim 9 wherein the first end of the third anchor is sandwiched between the inner fibrous sheet and the outer fibrous sheet.
11. A method of reinforcing a column positioned proximate a blocking structure that prevents wrapping a sheet material completely about the column, the blocking structure extending substantially an entire height of the column, the column including an exterior perimeter surface portion extending between first and second intersections with the blocking structure so that the exterior perimeter surface portion is accessible from one side of the blocking structure, the method comprising:
forming a first opening in at least one of the column and the blocking structure, the first opening being located proximate the first intersection of the exterior perimeter surface portion of the column and the blocking structure;
forming a second opening in at least one of the column and the blocking structure, the second opening being located proximate the second intersection of the exterior perimeter surface portion of the column and the blocking structure;
applying an inner fibrous sheet to the exterior perimeter surface portion of the column;
inserting a portion of a first fiber anchor through the first opening, the first fiber anchor comprising at least a first end;
securing the first end of the first fiber anchor to the inner fibrous sheet; and
applying an outer fibrous sheet over the inner fibrous sheet,
wherein the first end of the first fiber anchor is sandwiched between the inner fibrous sheet and the outer fibrous sheet.
12. The method of claim 11 further comprising
inserting a second fiber anchor in the second opening, the second fiber anchor comprising a first end; and
securing the first end of the second fiber anchor to the inner fibrous sheet;
wherein the first end of the second fiber anchor is sandwiched between the inner fibrous sheet and the outer fibrous sheet.
13. The method of claim 11 wherein the inner fibrous sheet is coextensive with the outer fibrous sheet.
14. The method of claim 11 wherein the inner fibrous sheet and the outer fibrous sheet are applied to extend across the exterior perimeter surface portion from adjacent the first intersection to adjacent the second intersection.
15. The method of claim 11 wherein securing the first end of the first fiber anchor to the inner fibrous sheet comprises splaying fibers in the first fiber anchor generally at the first end and connecting them to the inner fibrous sheet.
16. The method of claim 11 wherein forming the first and second openings comprises drilling first and second holes in converging directions.
17. The method of claim 11 wherein forming the first opening and forming the second opening comprises drilling through one of the column and the blocking structure from proximate the first intersection of the exterior perimeter surface portion of the column and the blocking structure through to the second intersection of the exterior perimeter surface portion of the column and the blocking structure.
18. The method of claim 11 further comprising a single passageway through at least one of the column and blocking structure connecting the first opening and the second opening.
19. The method of claim 18 wherein the first fiber anchor comprises a second end, the second end is secured to the inner fibrous sheet, and the second end is sandwiched between the inner fibrous sheet and the outer fibrous sheet.
20. The method of claim 18 wherein the first fiber anchor comprises a second end, and the method further comprises:
pushing the second end of the first fiber anchor through the first opening and then pulling the second end through the second opening; and
securing the second end to the inner fibrous sheet.
21. The method of claim 11 further comprising forming at least a third opening in the exterior perimeter surface portion of the column and installing a third anchor in the third opening.
22. The method of claim 21 further comprising connecting splayed fibers of a first end of the third anchor to the inner fibrous sheet, and sandwiching the first end of the third anchor between the inner fibrous sheet and the outer fibrous sheet.