Hello B1 It is used in buildings with irregularities by multiplying the R coefficient with the 1.25th min value - Earthquake code 2.3.2.3"FinalStop":1l416d8z" said:Hi, Although I have selected Rx and Ry 7 in the analysis settings, it appears as Rx:5.85 Ry:5.53 on the die plans while drawing. What is the reason? Thanks...