We often design post fixed rebar or rods in PROFIS choosing chemical anchor HY-200. However, our supplier apparently only procures HY-170 and this is NOT available in the software. I can see from the data sheet that the 200 version is seismic certified and marginally more resistant: 1. What are the main differences between the two products 2.How come HY-170 does not appear as an option in PROFIS.
Thank you for your question. The HY170 is a 'universal' product in that it has been formulated to work within concrete and masonry base materials that are hollow and solid. Whilst the HY170 does have European Technical Assessments for use in concrete and masonry the application range and fixing element type is subsequently smaller due to the universal aspect compared against the other specifically formulated concrete resin ranges such as the HY200-A* ,HY200-R* and HY270 for masonry. Consequently due to the more limited application range and base materials it has been omitted from the software.
HY200-A anchoring HY200-R rebar
Thanks for the follow query you are correct that the HY170 published data stops at M16 for HAS-U rods in cracked concrete therefore it is not possible to design M20 anchors with this product.
The Design Resistance value Nrd & Vrd (Compare your Ultimate / Factored load against these values) for the HY200A & HAS-U M20 5.8 in uncracked C20/25 concrete is Nrd 72.7kN & Vrd 48.8kN . For cracked concrete Nrd 50.9kN & Vrd 48.8kN. The Vrd is the same due to the steel strength. Please do not use the Characteristic Nrk values see attached pdf for a further explanation.
It isn't possible to utilise Profis Engineering for calculations for the HY170 and is currently a hand calculation process following EC2 Part 4 taking the values from the HY170 ETA but again the maximum diameter is M16 in cracked concrete.
