Are there any example calculations/guidance for how the concrete breakout capacities are calculated?
Thank you for your enquiry.
Concrete breakout resistance for fastenings in concrete is calculated in accordance with EN 1992-4:2018, Design of fastenings for use in concrete. The calculation considers factors such as effective embedment depth, concrete strength, anchor spacing, edge distances and anchor group geometry.
You will also need to refer to the European Technical Assessment (ETA) for the specific fastener, as this provides the product-specific parameters required for the EN 1992-4 calculation.
Alternatively, Hilti PROFIS Engineering can perform the relevant anchor design checks and provides a detailed calculation report showing the applicable failure modes and design verifications.