I am trying to add some supplementary rebar to a design with 9 no. anchors. I also reduced this to 6 no. anchors. Can you advise why I am getting the error with 9 and 6 no anchor arrangements "Supplementary reinforcement is only allowed with static and seismic, anchor arrangements up to 9 anchors and with EN1992-4"
Thanks for the question. The highlighted text is correct, I'd suggest looking at the message panel on the right hand side of the screen which will advise what is incorrect from your input. If you require further assistance then please feel free to contact your local HILTI office with your exported PE file.
Just to add to the earlier answer, please be aware of the anchor arrangement criteria in that you also need to meet the allowed anchor arrangements indicated in EC2 Part4