Anchor bolts are used to connect structural and non-structural elements to concrete. The connection can be made by a variety of different components: anchor bolts (also named fasteners), steel plates, or stiffeners. Anchor bolts transfer different types of load: tension forces and shear forces.
source/image(PrtSc): The Engineering Hub
This video investigates critical failure modes in concrete anchors. Concrete anchors can fail in a number of ways; during design, engineers have to check all possible failure scenarios and ensure that they will not occur. Watch the video from The Engineering Hub for more info:
The design process involves a number of parameters that need to be carefully considered and optimized. The most important of these parameters include: embedment, bolt diameter, edge distance, and prying.
The design considerations in this video are based on the Canadian Standard Association (CSA) A23.3 Design of concrete structures, 2019.
Modes of failure in tension
- Steel failure
- Pull-out failure
- Concrete cone
- Splitting failure
- Blow-out failure