Rebar anchorage device and method for connecting same to a rebar

摘要

An anchorage device and a method for connecting the device to an upstanding end of a rebar after the opposite end has been embedded in concrete. The anchorage device forms a head around the upstanding end of the rebar that will be covered with concrete to create bearing surfaces to hold the rebar in place within the concrete. The anchorage device includes a barrel having a tapered bore within which to receive the upstanding end of the rebar. A lid extends across the top of the barrel, and a threaded bolt is rotated through a threaded hole in the lid and into contact with the upstanding end of the rebar to apply an axial pushing force thereto. A segmented jaw slides through the tapered bore of the barrel into surrounding locking engagement with the upstanding end of the rebar to connect the device thereto.

主权项

1. A method for connecting an anchorage device to a steel rebar having first and opposite ends and being subject to tension and compression loads, said anchorage device including a barrel having a top, a bottom and a tapered bore running longitudinally between the top and the bottom of said barrel, a lid connected to and extending across the top of said barrel, said lid having a threaded opening formed therein, and a tapered jaw located within and slidable through the tapered bore of said barrel, said method comprising the steps of:
surrounding the first end of the rebar with said barrel of said anchorage device such that the rebar is received within the tapered jaw located within said barrel, and the lid of said barrel lies adjacent and covers the first end of the rebar; locating a threaded fastener through the threaded opening in the lid connected to the top of said barrel and into axial alignment with the first end of the rebar within the tapered jaw that is located within the tapered bore of said barrel; and applying a force to the threaded fastener for advancing the threaded fastener towards and into end-to-end contact with the first end of the rebar for applying an axial pushing force directly against said first end and thereby causing the rebar to move through the tapered bore of said barrel and said tapered jaw to slide through said tapered bore and into locking engagement with the first end of the rebar by which said anchorage device is connected to the rebar; and covering the barrel of said anchorage device with concrete such that said barrel forms a bearing surface on the rebar for holding the rebar in place within the concrete.