Concrete anchorage fixture

摘要

A concrete anchorage fixture (1) consists of an anchorage rod (2) inserted through a bush (7) in an anchorage hole (B). The tip of the bolt has splayed projections (3) with cutting edges (4). The projections (3) are moved radially outwards by movement (S) of the bush (7) relative to the rod (2). The splayed projections (3) are fixed to the shaft (2) and have free ends splayed outwards towards the shaft (2) free top end (6). The bush (7) is forced down (S) into the hole (B) by tightening a nut (14) at the top of the shaft and splaying the projections (3) outwards to effect the anchorage.