Anchoring device for the rod-shaped tension member of an anchor,

Details Anchoring device for the rod-shaped tension member of an anchor, Anchoring device for the rod-shaped tension member of an anchor,

1989-10-10

1990-11-20

Corbin, David H.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Torque responsive nut or bolt driving connection

Frangible connection

405259, 411 9, E21D 2102

Patent

active

049714937

ABSTRACT:
An anchoring device for a tension member of an earth- or rock anchor, where a support element transmitting the tensile force is arranged between an anchoring element undisplaceably connected with the tension member and an anchor plate abuttable against a support base, the support element includes a cylindrical hollow body surrounding the anchoring element, whose inner wall has in its lower region projections protruding inward beyond its inner contour, against which the anchoring element abuts in a force-transmitting manner with partial regions of its cross-sectional area. If a predetermined tensile force is exceeded, the support element and/or the anchoring element can plastically deform in the region of their inter-engaging surfaces, so that a relative displacement occurs in axial direction. Distance or spacer pins are provided in a head plate placed upon the tension member for visual indication of the relative displacement, which after contact with the surface of the hollow body exit upwards from the head plate.

REFERENCES:
patent: 3534651 (1970-10-01), Belfiglio
patent: 3728933 (1973-04-01), Grube
patent: 3908508 (1975-09-01), Payne
patent: 4378180 (1983-03-01), Scott
patent: 4408936 (1983-10-01), Williamson
patent: 4410296 (1983-10-01), Unrug
patent: 4627774 (1986-12-01), Bradley

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