Dear Sir,
The calculated buckling moment resistance in STAAD with C1=1 as per Euro code is less than the actual calculated buckling resistance and compared with Blue book capacity. Please find attached comparsion for your quick review. Kindly let me know the possibility in STAAD to get the similar value as per the calculation and Blue book capacity.
Please note that the STAAD Pro version 20.07.11.70 is used for the calculation.
Hope the given information will be sufficient for you to verify if not please let me know.
Thanks,
Best Regards,
Mahendran Jegadeesan
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