Bonded slab post-tension system

• US 5,701,707 A
• Filed: 05/06/1996
• Issued: 12/30/1997
• Est. Priority Date: 05/06/1996
• Status: Expired due to Term

• Current Assignee: Felix L. Sorkin
• Original Assignee: Felix L. Sorkin
• Inventors: Sorkin, Felix L.
• Primary Examiner(s): Wood, Wynn E.
• Assistant Examiner(s): Saladino, Laura A.
• Application Number:
  US08/642,853
• Time in Patent Office: 603 Days
• Field of Search: 52/223.6, 52/223.13, 52/223.14
• US Class Current: 52/223.13
• CPC Class Codes: E04C 5/12 Anchoring devices tools or methods for tensioning in situ E04G21/12

Abstract

A transition apparatus for a bonded slab post-tension system including a diverter member having a first end and a second end and a tendon port support affixed to the second end of the diverter member. The first end of the diverter member is attached to a duct. The tendon port support has a plurality of tendon ports opening at an end opposite the diverter member. The second end of the diverter member has a greater area than the first end. Each of the tendon ports is of a tubular configuration opening at one end to an interior of the diverter member. A plurality of tubular members are affixed to the plurality of tendon ports and extend outwardly therefrom. A plurality of anchors are attached to the plurality of tubular members at an end opposite to the plurality of tendon ports.

Claims

1. A bonded slab post-tension system comprising:

a plurality of tendons;

a duct extending around said plurality of tendons;

a transition member connected to said duct and extending around said plurality of tendons, said transition member having a plurality of tendon ports formed at an end opposite said duct, said plurality of tendons extending through said plurality of tendon ports, said transition member comprising;

a tendon diverter having a first end connected to said duct; and

a port support affixed to a second end of said tendon diverter, said plurality of tendon ports formed at an end of said port support opposite said tendon diverter, said port support and said plurality of tendon ports being of a more pliable polymeric material than said tendon diverter;

a plurality of tubular members affixed to said plurality of ports and extending outwardly therefrom, said plurality of tendons extending through said plurality of tubular members; and

a plurality of anchors attached to an end of said plurality of tubular members, said plurality of tendons having an end affixed to said plurality of anchors.

2. The system of claim 1, each of said plurality of tubular members attached to a separate one of said plurality of tendon ports, each of said plurality of tendons extending through a separate one of said plurality of tendon ports.

3. The system of claim 2, each of said plurality of anchors attached to a separate one of said plurality of tubular members, each of said plurality of anchors affixed to a separate one of said plurality of tendons.

4. The system of claim 1, said duct, said transition member and said plurality of tubular members being formed of polymeric material.

5. The system of claim 1, said second end of said tendon diverter having a greater area than said first end.

6. The system of claim 1, said transition member having a grout means formed on a surface thereof, said grout means for passing a grout material into an interior of said transition member.

9. The apparatus of claim 1, said second end of said diverter member having a greater area than said first end.

7. A bonded slab post-tension system comprising:

a plurality of tendons;

a duct extending around said plurality of tendons;

a transition member connected to said duct and extending around said plurality of tendons, said transition member having a plurality of tubular tendon ports extending outwardly from an end opposite said duct, said plurality of tendons extending through said plurality of tendon ports;

a plurality of tubular members affixed to said plurality of ports and extending outwardly therefrom, said plurality of tendons extending through said plurality of tubular members, each of said plurality of tubular members having an inner diameter slightly greater than an outer diameter of each of said plurality of tendon ports, each of said plurality of tubular members being slidably received in liquid-tight relationship onto an exterior surface of each of said plurality of tendon ports; and

a plurality of anchors attached to an end of said plurality of tubular members, said plurality of tendons having an end affixed to said plurality of anchors, said duct and said transition member and said plurality of tubular members being formed of a polymeric material.

8. A transition apparatus for a bonded slab post-tension system comprising:

a diverter member having a first end and a second end, said first end having means for attachment to a duct; and

a tendon port support affixed to said second end of said diverter member, said tendon port support having a plurality of tendon ports thereon, each of said plurality of tendon ports being of a tubular configuration opening at one end to an interior of said diverter member, said tubular configuration extending outwardly from said one end, said diverter member and said tendon port support being formed of a polymeric material.

10. The apparatus of claim 8, said diverter member having grout means formed thereon, said grout means for passing a grout material into an interior of said diverter member.

11. The apparatus of claim 8, said port support and said plurality of tendon ports being of a more pliable polymeric material than said diverter member.

12. The apparatus of claim 8, further comprising:

a plurality of tubular members affixed to said plurality of tendon ports and extending outwardly therefrom, said plurality of tubular members being formed of a polymeric material.

13. The apparatus of claim 12, each of said plurality of tubular members being slidably affixed in liquid-tight relationship onto an exterior surface of each of said plurality of tendon ports.

14. The apparatus of claim 12, further comprising:

a plurality of anchors attached to said plurality of tubular members at an end opposite said plurality of tendon ports.

15. The apparatus of claim 14, each of said plurality of anchors having a tubular extension formed thereon, said tubular extension being slidably received in liquid-tight relationship onto said end of said plurality of tubular members.

16. The apparatus of claim 15, each of said plurality of anchors comprising:

a rigid anchor member; and

a polymeric encapsulation extending around said anchor member, said tubular extension formed in said polymeric encapsulation.

17. The apparatus of claim 12, each of said plurality of tendon ports and said plurality of tubular members defining an interior passageway communicating with said diverter member so as to allow a single tendon to pass therethrough.