Re: When making a ductile solution with a high R coefficient, 0.40 and 0.75 intermediate Hello, In the title of the left report, general information is given for the selection of the R and D coefficients. In the right report, Article 4.3.4.5 was applied automatically after the analysis. Since the lower limit (0.40) was not met, one more of the upper LMS was applied. It's not clear what you want to ask in the title. If your question is something else, please specify.