Failure Mechanism of New Bond‐Type Anchor Bolt Subject to Tension

The objective of this study is to investigate the failure mechanism of a new bond‐type anchor bolt under tensile force so that a design method may be established. A conventional headed anchor bolt embedded in a concrete footing normally fails by pulling out a stress cone; however, the bond‐type anchor bolt exhibits a complex failure mode, here referred to as a mixed bond‐cone failure. To date, the theoretical aspects of this failure mechanism have not been established. With the needs of design application in mind, an analytical model to predict the ultimate strength of the bond‐type anchor bolt is presented. Experimental data confirm that this model can be used with acceptable accuracy to assess the ultimate strength and the failure mode of the bond‐type anchorage system.