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Recent content by numericaleng

  1. numericaleng

    ETABS API add new mass source

    Thank you for your kind answer. Definitelly this is the solution. I am using VBA, I also check your codes. May I ask which documents I can follow for pyton codes for ETABS OAPI. I try to find a source like CSI API ETABS v1.chm but I could not.
  2. numericaleng

    ETABS API add new mass source

    Hello, I created a program with using visual studio VBA, but I could not add "NEW" mass source. One of the collegue said to me: you should use a different system and library but I could not find anyway. I would be appriate if you help me. NOTE : cPropMaterial.SetMassSource_1 Method could not...
  3. numericaleng

    Converting 5% damped response spectrum to 2% & 0.5% damping

    Thank you for you comments. I found something from Chopra. I m just not sure which one is more relaible or suitable; Media or One Sigma
  4. numericaleng

    Converting 5% damped response spectrum to 2% & 0.5% damping

    I am designing a water storage tank and I need to convert my elastic response spectrum's damping ratio 5% to 2% & 0.5%. Could you please help me how can i convert it? If I have a time history data, I can derive it to other thinks (PSA, PSV, PSD, SA, Displacement charts etc.) . But I did not...
  5. numericaleng

    ASCE 41-17 STEEL COLUMN HINGE

    Is anybody know that issue or did you check which one is correct?
  6. numericaleng

    ASCE 41-17 STEEL COLUMN HINGE

    And also; SAP2000 take the radius of gyration from strong axis. why it is I don't know
  7. numericaleng

    ASCE 41-17 STEEL COLUMN HINGE

    I found the reason, problem is SAP2000 take the effective shear area from weak axis. And its database got differences from EU Shear Area (Avz) values.
  8. numericaleng

    ASCE 41-17 STEEL COLUMN HINGE

    Hi all, I am studying about performance analysis, and confused a point about ASCE 41-17 steel column hinge properties. When I calculate the yield rotation according to Eq. 9-2, I obtain 0.00776 but SAP2000 show 0.006378 (L=3 m; HEB400; S355). The interaction curve definitions (P, M3 etc.)...

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