@BigH ,
Thankyou ever so much for your input and very useful reference.
Unless I've missed it it appears that the literature omits the `Janbu chart formula. Newarks work is covered in chapter 3 however which is similar but I don't think that is quite what I'm looking for.
Thanks!
Hello all - I hope all are doing well.
I'm looking for some guidance on the chart by Janbu, Bjerrum & Kjaernsli which shows the increase in vertical stress for flexible footing for various z/B ratio against L/B ratio.
I would like to re-create the equation to calculate the value shown on the...