Eccentricy on C-shape profile - Bending Moment
Eccentricy on C-shape profile - Bending Moment
(OP)
Hello,
I have a doubt related to the following problem. The picture attached shows a c-shape profile and its centre of mass. The column-beam is attached by fasteners at each extremity. Normal forces are applied on this element comming from the attachements. The same normal force (Fn) creates, due to the eccentricity (y), a bending moment ( M = Fn x y). That's my question actually. The lever arm that I have to consider is the value of y or (y - tw/2)? I was considering the value of y, however, when I remember how the loads are distributed on fastened plates, I get confused. Due to the centre of mass not actually be on the neutral line of the web explain this? I appreciate any clarification. Thanks






RE: Eccentricy on C-shape profile - Bending Moment
Is this just a simple shear connection? Is the channel oriented the way you show it? What direction is the force Fn in relation to the channel? I can't picute what you mean exactly.
RE: Eccentricy on C-shape profile - Bending Moment
BA
RE: Eccentricy on C-shape profile - Bending Moment
RE: Eccentricy on C-shape profile - Bending Moment
assuming Fn is horizontal (in the x-direction) ... i see the reaction to Fn on the shear face of the fasteners
there are many things that affect this ...
as you've noted, does the beam deflect ?
how can the beam react torque at the ends ?
how is the beam loaded ?
form the simple sketch, i'd say the x- reaction is at y=0, and from there draw a free body ...
where's the load applied ?
this is balanced by couples, presumably at both ends.
deflections can affect reactions.