ANALYTICAL STUDY ON FRACTURE MECHANISMS RULING RESISTANT LOAD OF POST INSTALLED ADHESIVE ANCHOR

Abstract

Experimental and FEM-based analytical study revealed following aspects regarding post-installed adhesive anchors set with Epoxy or UHPFRC adhesive.

1.The experimental and FEM results agreed in regard to maximum loads, load-displacement curves, crack patterns, failure modes and the location.

2.The load-bearing mechanisms was discussed employing a model with a conic surface and an interface layer below it, which revealed the contribution of a conic surface to the maximum load was low and that of an interface layer was very high.

3.The mechanisms of combined failure with cone-shaped fracture of concrete and interface slipping were also reported.