That allowable stress was supposed to be 21.6 ksi, typo...thanks. Do you have any help for me to factor in the vertical member or any more help on the gusset?
Ok thanks, so the 60% of the yield stress that we initially chose gives me my allowable stress of 2.6 ksi, why did you pick 60%? By doing the calculations the smallest rectangular tubing that would work is 6" x 4" by .375" thick...that seems plenty big enough. Since I'm realistically only...
Thanks again. How come sometimes I (moment of inertia) has mass and sometimes it doesn't?? Or am I doing something wrong? My units for I using I=[(b_o*h_o^3) - (b_i*h_i)]/12 where o is outside dimension and i is inside dimension for rectangular tubing is (in^4)...
Also c is the distance from...
Thank you 'edgepflow'. How do I determine an allowable stress for the horizontal beam? Something hasn't clicked yet for me. Also do you know the formula for peak stress in a cantilever beam point loaded at the end?
For my gusset, Stress = M c / I, where c is the distance from the neutral...
Cantilever Steel Tubing Beam
Homework Statement
I am trying to design on paper a cantelever beam made of steel rectangle tubing. One 60" vertical section will be bolted to the concrete while a 2nd section 40" long will be welded to the top hanging over horizontally. At the end of the...