Shear test on anchor bolts or rods

Test aimed at determining the shear resistance of anchors or bars anchored to an existing substrate. The test is carried out using a hydraulic jack which applies a shear force to the dowel via a metal fork. To induce pure shear on the dowel, particular attention must be paid to the coplanarity between the axis of the hydraulic jack rod and the section of the connector immediately protruding from the substrate, to avoid generating an undesired bending couple. The test is conducted by applying a monotonic load until the anchoring breaks (or until reaching the design load), using a hydraulic pump. The maximum force reached during the test is noted, which may coincide with a given design force or with the force exerted to the point of generating shear failure of the inserted element or bearing failure on the substrate, noting the failure mode. Where required, force and displacement data (or force alone) can be recorded to obtain a graph of the test. Reference standards: ASTM E 488/ E 488M-22; ETAG 001