Concrete cone failure

Concrete cone is one of the failure modes of anchors in concrete, loaded by a tensile force. The failure is governed by crack growth in concrete, which forms a typical cone shape having the anchor's axis as revolution axis.

https://en.wikipedia.org/wiki/Concrete_cone_failure


Tension loaded anchorages far from the concrete edge may fail due to concrete cone failure, steel failure, pull-out failure or splitting of the concrete member. In the case of concrete cone failure, a conical concrete breakout body forms, where the angle of the initial crack of the concrete cone to the concrete surface is approximately 35° and the diameter of the concrete cone is about 1.5 times the anchor embedment depth. If closely spaced anchor groups are loaded in tension, their concrete breakout bodies may overlap with each other and therefore, the full concrete cone resistance for a single anchor group may not be reached.

https://www.sciencedirect.com/science/article/abs/pii/S01410...

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Note added at 1 dag 17 uren (2021-05-04 17:21:42 GMT)
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concrete pry-out failure, what it looks like:


https://tinyurl.com/ynpb4hf3