I am conducting an ASD9 Code Check with GTStrudl V. 25. In the summary output of the Code Check, the controling load combination is noted as "AXC TBEN". I do not believe that this combination is correct, since it seems to only be adding two of the three D/C ratios (axial, minor bending, and major bending) together to get the overall controlling D/C ratio. I tried the same code check in Sap2000 and by hand, with the resulting D/C ratios being higher in Sap2000 and by hand than in GTStrudl, which brings the GTStrudl code check into question. Therefore, does anyone know what "AXC TBEN" stands for and how to calculate it?
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