Systems and methods for applying reinforcement material to existing structures

Patent metadata

Field	Value
Publication number	US-9322508-B2
Application number	US-201213602732-A
Country	US
Kind code	B2
Filing date	Sep 4, 2012
Priority date	Sep 1, 2011
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

In one embodiment, a system for applying reinforcement material to an existing structure includes a work rail adapted to be temporarily secured to a bottom surface of the structure, adhesive applying apparatus supported by the work rail, the adhesive applying apparatus being adapted to form an adhesive layer on the bottom surface of the structure adjacent the work rail, and reinforcement material applying apparatus supported by the work rail, the reinforcement material applying apparatus being adapted to apply reinforcement material to the adhesive layer formed on the bottom surface of the structure.

First claim

The invention claimed is:

1. A system for applying reinforcement material to an existing structure, the system comprising:
a work rail adapted to be temporarily secured to a bottom surface of the structure, wherein the work rail is a modular work rail that is composed of multiple rail segments that are connected together end-to-end;
adhesive applying apparatus supported by the work rail, the adhesive applying apparatus being adapted to form an adhesive layer on the bottom surface of the structure adjacent the work rail; and
reinforcement material applying apparatus supported by the work rail, the reinforcement material applying apparatus being adapted to apply reinforcement material to the adhesive layer formed on the bottom surface of the structure.

2. The system of claim 1 , wherein the rail segments are flexibly connected together such that they can bend relative to each other to enable the rail to be coiled up.

3. The system of claim 1 , wherein at least one work rail segment comprises a body that includes a top portion, a bottom portion, and a central portion that joins the top and bottom portions.

4. The system of claim 3 , wherein the body is unitarily formed from a single piece of a polymeric material.

5. The system of claim 3 , wherein the top, bottom, and central portions are substantially planar.

6. The system of claim 3 , wherein a top surface of the top portion includes an opening and the body includes a passage that is in fluid communication with the opening and wherein air can be drawn through the opening and the passage to secure the rail segment to the bottom surface of the structure with suction force.

7. The system of claim 6 , wherein the rail segment further comprises a resilient sealing member provided on the top portion of the body that surrounds the opening.

8. The system of claim 6 , wherein the rail segment further comprises a one-way valve associated with the passage that only permits air to flow in one direction through the passage.

9. The system of claim 8 , wherein the rail segment further comprises a release valve associated with the passage that enables air to enter the passage.

10. The system of claim 3 , wherein the bottom portion forms top surfaces adapted to support wheels or bearings of one or both of the adhesive applying apparatus and the reinforcement material applying apparatus.

11. The system of claim 1 , wherein the adhesive applying apparatus comprises a trolley that supports two tanks, each tank adapted to contain a different adhesive component.

12. The system of claim 11 , wherein the trolley includes a carriage, the carriage comprising wheels or bearings that are directly supported by the work rail and that enable the trolley to roll along the length of the rail.

13. The system of claim 11 , further comprising a mixing tube in which the adhesive components can be mixed to form an adhesive.

14. The system of claim 13 , further comprising a nozzle adapted to apply the adhesive to the bottom surface of the structure.

15. The system of claim 1 , wherein the reinforcement material applying apparatus comprises a trolley that includes a carriage, the carriage comprising wheels or bearings that are directly supported by the work rail and that enable the trolley to roll along the length of the rail.

16. The system of claim 15 , wherein the trolley supports a reel upon which reinforcement material is wound.

17. The system of claim 16 , wherein the reinforcement material is carbon fiber reinforced polymer (CFRP).

18. The system of claim 16 , wherein the trolley further supports a reel upon which an inflatable member is wound, the inflatable member being adapted to urge the reinforcement material into contact with the adhesive.

19. The system of claim 18 , wherein the trolley further supports a reel upon which a retaining member is wound, the retaining member being adapted to urge the inflatable member against the reinforcement material.

20. The system of claim 19 , wherein the trolley further comprises support rollers adapted to hold the reinforcement material against the adhesive until the inflatable member is urged against the reinforcement material.

Assignees

• Mullins Austin Gray
• Sen Rajan
• Winters Danny
• Univ South Florida

Inventors

• Mullins Austin Gray
• Sen Rajan
• Winters Danny

Classifications

• E04G2023/0251

  by using fiber reinforced plastic elements · CPC title

• Y10T156/10

  Methods of surface bonding and/or assembly therefor · CPC title

• B32B37/0046

  characterised by constructional aspects of the apparatus · CPC title

• F16M13/027 Primary

  Ceiling supports · CPC title

• E04G23/0218 Primary

  Increasing or restoring the load-bearing capacity of building construction elements (E04G23/0203 and E04G23/0266 take precedence) · CPC title