Members fail in Ductile design (Special moment frame)

good day sir's, i would just like to ask for opinions and solutions. my beams and columns failed in ductile design (special frame) but passes if i uncheck the ductile design..  i wonder why it fails,, i tried to resize the members and adjust concrete and rebar grade and still fails. please advice. thank you.EJC.STD

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  • Hi Jan,

    Apologies for delay in response.

    There is a defect found while reading beams with offset. We will be solving this issue on priority and will be available in the Next release of RCDC which will be in June end.

    As a temporary solution, we suggest you to remove the offsets that are provided to beams and perform the design in RCDC. With this work around, all the beams will get designed for Ductile Special setting.

    I am attaching an excel sheet where we have compared the forces in beams with offset and without offset. We found that there is nominal difference in the forces.

    Also attaching the RCDC file of version 10.00.00.278 for your ready reference.

    https://communities.bentley.com/cfs-file/__key/communityserver-discussions-components-files/5932/Beam-at-3.2m-level.rcdx

    For any further assistance you can get back to us.

    Thanks.Force Comparison.xlsx

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