Designing an endplate for a simply supported beam connecting to an existing RC T-column, reinforcement shown below. Shear ULS reaction = 252kN.
I keep getting a concrete edge breakout failure and am struggling to come up with an arrangement that would allow it to pass. I am not that familiar with the software, so would appreciate if you could have a look at the attached file and advise on any tips or steps that I could take to get a working connection. Thanks
Thanks for your enquiry and also uploading your pe file. I see that your file currently has a CBFEM requirement, and you have the have the design method selected as Eurocode 2-4. I'd suggest swopping the methodology to Sofa Based as this will distribute the shear load amongst the group and also calculate the concrete resistance to the rear anchors in this scenario. Ignoring the cbfem analysis at this moment and accepting the results indicate a concrete edge failure of 104 % but also a concrete failure at 102% with the maximum embedment depth for the selected anchor. For example, if you increase the diameter to the next size the concrete failure is eliminated, and the edge breakout is reduced still further it is now just refining your detail such as adjusting the spacing between the anchors and let the software utilise the embedment depth . Again, as a starting point as an indication of the minimum spacings for your loading criteria I’d start with say 220 x 220 x 160 and take it from there allowing for the UB.