Assembly and method for anchoring rebar to a mass

• US 9,062,457 B2
• Filed: 02/11/2014
• Issued: 06/23/2015
• Est. Priority Date: 02/11/2013
• Status: Active Grant

• Current Assignee: Brent Bennett, Carrick Pierce, Eng Kiat Tng, Robert Gilling, Shuangyou Liu
• Original Assignee: Brent Bennett, Carrick Pierce, Eng Kiat Tng, Robert Gilling, Shuangyou Liu
• Inventors: Gilling, Robert, Pierce, Carrick, Tng, Eng Kiat, Liu, Shuangyou, Bennett, Brent
• Primary Examiner(s): Canfield, Robert
• Application Number:
  US14/178,119
• Publication Number:
  US 20140223854A1
• Time in Patent Office: 497 Days
• Field of Search: 522/231.3, 527/452.1, 405/259.4, 405/262, 241/35.R, 241/36.R, 241/15.M, 403/314
• US Class Current: 1/1
• CPC Class Codes: E02D 5/74 Means for anchoring structural elements or bulkheads anchoring piles E02D5/54 ; anchored foundations E02D27/50
• CPC Class Codes: E04C 5/122 the tensile members are anchored by wedge-action
• CPC Class Codes: E04C 5/165 Coaxial connection by means of sleeves
• CPC Class Codes: E04G 21/12 Mounting of reinforcing inserts; Prestressing shell tubes for prestressing members E04C5/10; anchoring means E04C5/12; connections of reinforcing elements and spacers E04C5/16
• CPC Class Codes: E04G 21/121 Construction of stressing jacks
• CPC Class Codes: E21D 21/0086 Bearing plates
• CPC Class Codes: F16B 9/054 the intermediate member being threaded
• CPC Class Codes: F16B 9/056 the intermediate member extending through the flat surface; the rod or tubular part extending through the flat surface
• CPC Class Codes: Y10T 403/50 Bridged by diverse connector

Abstract

A method and assembly for anchoring a segment of rebar and a plate to a mass. The assembly includes a barrel extending about and along an axis and defining a bore extending therethrough along the axis with the bore being tapered. A wedge having a frustoconical shape extends about and along the axis. The wedge is tapered in conformity with the bore of the barrel for being received by the barrel. A cap is connected to the barrel for closing the barrel. The method includes the step threadedly tightening the cap about the barrel in axial abutment to close the barrel, and further the step of compressing the wedge axially into the bore of the barrel to drive the wedge radially inwardly to provide for a biasing force of the wedge against the rebar prior to said step of threadedly tightening the cap about the barrel.

Claims

1. A method for anchoring a segment of rebar to a mass using a barrel extending along and about an axis and defining a bore being tapered extending therethrough along the axis and a wedge being tapered and defining a hollow extending therethrough along the axis and a cap, said method comprising the steps of:

extending the rebar axially into the mass,

extending the bore of the barrel about the rebar,

extending the hollow of the wedge about the rebar axially adjacent to the mass,

connecting the cap to the barrel to close the barrel to inhibit movement of the wedge out of the barrel,

compressing the wedge axially into the bore of the barrel to drive the wedge radially inwardly to provide for a biasing force of the wedge against the rebar prior to said step of connecting the cap to the barrel to close the barrel, and

extending a spring washer about the segment of rebar axially against the wedge to compensate for movement of the rebar relative to the barrel and to provide for more uniform compression of the cap onto the wedge.

2. The method as set forth in claim 1 wherein said step of compressing the wedge axially into the bore of the barrel includes compressing said wedge axially into the bore of the barrel using a clamping tool.

3. The method as set forth in claim 2 wherein said clamping tool is a hydraulic actuator.

4. A method for anchoring a segment of rebar to a mass using a barrel extending along and about an axis and defining a bore being tapered extending therethrough along the axis and a wedge being tapered and defining a hollow extending therethrough along the axis and a cap, said method comprising the steps of:

extending the rebar axially into the mass,

extending the bore of the barrel about the rebar,

extending the hollow of the wedge about the rebar axially adjacent to the mass,

connecting the cap to the barrel to close the barrel to inhibit movement of the wedge out of the barrel,

compressing the wedge axially into the bore of the barrel to drive the wedge radially inwardly to provide for a biasing force of the wedge against the rebar prior to said step of connecting the cap to the barrel to close the barrel,

extending a plate about the rebar axially against the mass,

threadedly extending a nut being threaded about the barrel, and

rotating the nut to axially move the nut against the plate to provide a biasing force of the nut against the plate.

5. The method as set forth in claim 4 wherein said step of compressing the wedge axially into the bore of the barrel includes compressing said wedge axially into the bore of the barrel using a clamping tool.

6. The method as set forth in claim 5 wherein said clamping tool is a hydraulic actuator.

7. A method for anchoring a segment of rebar and a plate to a mass using a barrel having a proximal extremity and a distal extremity and defining a bore extending therethrough along an axis with the bore being tapered from the proximal extremity to the distal extremity and a wedge having a frustoconical shape with a rear end and a front end and extending along the axis from the rear end to the front end with the wedge being tapered from the front end to the rear end in conformity with the bore of the barrel and the wedge defining a hollow extending therethrough along the axis and a spring washer and a cap being threaded and a hydraulic pressing tool, said method comprising the steps of;

extending the rebar into the mass,

extending the plate about the rebar axially against the mass,

extending the bore of the barrel about the rebar,

extending the hollow of the wedge about the rebar axially adjacent to the plate,

inserting the front end of the wedge along the axis into the bore of the barrel at the proximal extremity of the barrel,

extending the spring washer about the segment of rebar axially against the wedge to compensate for movement of the rebar relative to the barrel,

threadedly tightening the cap about the barrel in axial abutment with the spring washer to close the barrel, and

compressing the wedge axially into the bore of the barrel with the hydraulic actuator to drive the wedge radially inwardly to provide for a biasing force of the wedge against the rebar prior to said step of extending the spring washer about the segment of rebar and threadedly tightening the cap about the barrel in axial abutment with the spring washer to close the barrel.

8. The method as set forth in claim 7 and further including the steps of;

extending a nut being threaded about the rebar,

threadedly tightening the nut about the distal extremity of the barrel,

rotating the nut to axially move the nut against the plate to provide a biasing force of the nut against the plate.