When I was checking my structure using AISC Unified, I noticed some of the T members were failing. I tried to increase the size with little effects. So I looked into the details and saw that the demand was not that high, which led me to switch to LRFD and found those T members are well below the capacity. Could someone take a look at the files and let me know what is going on here? I am uploading my files here. Thank you!(Please visit the site to view this file)(Please visit the site to view this file)
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