Hi,
Currently I'm working on an analysis for some heavy equipment for an industrial
site and have determined the support load points, upon talking to another
consultancy/contractor working on one of our sites they were concerned about
the grout height causing a bending moment on the bolt and asked us to check
this, I've been doing a lot of digging around through EOTA TR 045 and
AS5216:2021 and cannot seem to find a concrete answer for this, can grout above
0.5*nominal diameter be used for stand-off applications that are under seismic
actions?
Hi James,
Thank you for your question regarding anchor bolts under seismic C2 actions with stand-off applications. There is a reference in EN1992-4:2018 for the shear design of anchors under stand-off applications. Having grout as an intermediate layer between the baseplate and concrete is indeed considered a stand-off application. According to the code in Cl. 6.2.2.3 (1) (b) (2):
Earlier this year, we launched a new design method called SOFA 2.0, which also addresses grouted and ungrouted stand-off applications. I think it would be beneficial for you to review this as well. Our Field Engineers can support you with this.
Additionally, I have attached two whitepapers on these applications that provide a detailed understanding along with design examples. I hope these resources will help you in your analysis.
Please let me know if you have any further questions or need additional assistance.
Best regards,
Suman
