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dhengr and TehMightyEngineer; thank you both for your inputs.

TehMightyEngineer; thank you for your comment. There is no torsion on the jib as it will simply rotate when jib is rotated at 90 degrees. Torsion can only be induced if load is restrained which in this case is not the case. My question is leaving the serviceability issue a side, does it matter...

Hello All, I am evaluating a free standing over braced jib crane that is constructed of 170" high mast column. A 52" high pivot column installed at the top front of the mast column. A 200" long jib arm pin connected to the middle of the pivot column and a 1" tie back rod is connected to the top...

Thank you JAE, BOPECO and Kootk! I really appreciate the discussion that we are involved in. How can lateral torsional buckling occur when the lateral deflection as you guys say does not occur. As you suggested that the beam will simply rotate and the beam will not bend in weak axis. If that is...

Thanks Brad805! They don't provide the size of the beam to confirm my calculation. Best Regards

Thanks Kootk! You are right I am concerned with weak axis bending. Attached is what I was thinking of when I came up with k = 2. Would the shaft provide a reaction opposite to the thrust (compression)and since one end of the beam is pinned the other end is free to move and rotate would that...

Thanks Kootk for the reply but is there any justification for your choice of k=1?

Hello Guys, I am design a wall mounted jib crane (attached) that is in a triangular configuration. The Jib Arm is cantilevering about 17ft give or take; it is tied at about 13' with a tie 1" tie rod that is pin connected to the wall. The Jib is also pin connected to the wall. The angle between...