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  1. takupfr

    Portal frame vertical deflection

    Hi, thank you again for taking time here. I am sorry but i see the formulas for the reactions at supports but don’t see the formula to get the deflection at mid span. I may be stupid.
  2. takupfr

    Portal frame vertical deflection

    Hi ANE91 and thank you for your answer. I remember doing this in engineering school back in the days. The thing is i kinda forgot how... i am ashamed tbh. Would you mind developping a little more to get to the end formula? I just need something that can be used quickly without going through a...
  3. takupfr

    Portal frame vertical deflection

    Hi guys, Quick one for you professionals: do you guys know a simple formula to quickly estimate the vertical deflection at the apex of a portal frame pinned at its bases? My inputs would be: w : UDL on rafter L: column to column distance h: top of column height Alpha: angle that the rafter...
  4. takupfr

    Portal frame with truss girder hand calculation

    Hi everyone, I am preparing the IStructE exam and I am looking for a design method I could use for designing portal frame structures with truss girders. See sketch attached. I there any simple formula i can use for getting the bending moment, shear and axial diagrams in the columns and truss...
  5. takupfr

    Initial imperfection

    Hi everyone, My name is Mathias, I'm a civil/structural engineer and a new user of Abaqus. I have a simple query: As I'm studying the capacity of a steel beam I would like to input an initial geometrical imperfection in my model following the first mode of my buckling analysis ran previously...

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