Hello, I am having issues with STAAD. I am obtaining the error "# is a slender section, design skipped", which I checked in other posts but the answer gave it doesn't work to me, sorry.
Following the steps that I did in order to check the ratio utilization: 1) I changed my model parameter design from Eurocode (that runs great thanks to your previous help) to AIJ2005, which can not run models with Set Z up command (which surprised me really).2) I removed Z command and changed all the loads from Z to Y (global axis direction)3) Run the analysis again, and I have thousands of members (the girders) that shows the same error: "# is a slender section, design skipped"4) I tried TMAN and SLF 1.0 ALL but nothing worked. May I ask for your help once more please?Attached is the model. Thanks for the help.
5826.220126 8FJapanese.STD