During the design phase of the fixings, it´s important to differentiate between the minimum and critical distances between anchors and the edge of the concrete. These values can be found in the manufacturer´s approvals and technical documentation.
There are 2 types of edge distances that should be clarified and taken into account when designing anchors:
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Critical distance to the edge | Minimum distance to the edge |
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Critical distance to the edge | Minimum distance to the edge |
There are 2 types of spacing or distance between anchors that we must consider for the design phase of the anchor:
The reduction in resistance for installing an anchor below the critical edge ccr) and/or critical spacing (scr) distance should be calculated by applying certain equations from the EN 1992-4 standard. Eurocode 2. Design of concrete structures. Part 4. Design of fastenings for use in concrete. This reduction can be obtained quickly and easily using our anchor calculation software INDEXcal.
The critical and minimum distance values are indicated in the European standards.
Latest revision: FAQ22 rev0