Posted by Stevenabout 2 years ago
Spacing between the existing anchor and the new anchor
Do Hilti's specifications require a minimum spacing between existing anchors and new anchors when installing new Hilti anchors with HY-200 next to the existing ones?
1 Reply
Posted by Mohammed Hamdounaabout 2 years ago
Hi Steven,
Thank you for contacting Hilti.
There are 2 potential scenarios here:
- Old anchor is not loaded, where you might be able to ignore it when designing the new anchor as the old one is not loaded.
- Old anchor is loaded: what you can do here is perform an anchor design using both old and new anchors in the same design while considering the spacing between them and the loads applied to both anchors. The minimum spacings required for HY 200-R V3 anchors are shown under Table B2 on page 15 of the approval document ETA 19/0601. You would have to ensure that the projected concrete cones from both anchors don't overlap, or else you would expect a reduction in the concrete capacity for both of them.
Having said that, conducting a complete anchor design using Profis Engineering would give you the complete picture, given that you provide all of the required parameters for both the old and new anchors.
I hope this helps.
Best regards,
Ask Hilti Team.