Effect of Bracing on Deflection of Beam
Effect of Bracing on Deflection of Beam
(OP)
Does bracing has any effect on deflection of beams? I am presently working on an alumunium mullion design which is laterally bracedd by transoms (horizontal members) in a curtain walls. So, whether I should use the span length for deflection calculation from bracket to bracket (which is fixed at the slab at both ends), or whether I should use longest span length between two transoms.
The Height of the mullion is 3.65 meters with bracing provides at 0.7m from the ends.
The connection between the mullion and transom is held by a two screws.
So, should I use the full span length neglecting the bracing as like a simply supported which would render conservative results or whether I can assume the pin support at mullion and transom connection and find deflection by inditerminate beam methods.
Can bracing be consideredd as a support point in the beam?
The Height of the mullion is 3.65 meters with bracing provides at 0.7m from the ends.
The connection between the mullion and transom is held by a two screws.
So, should I use the full span length neglecting the bracing as like a simply supported which would render conservative results or whether I can assume the pin support at mullion and transom connection and find deflection by inditerminate beam methods.
Can bracing be consideredd as a support point in the beam?






RE: Effect of Bracing on Deflection of Beam
RE: Effect of Bracing on Deflection of Beam
My main issue still remains is that if I take the full length of the mullion without considering the effect of transom in between it gives comparatively large deflection.
MiketheEngineer I want to know that the unbraced length should be 2.25m (3.65-1.4) or it is 3.65meters in order to use in the deflection calculation.
RE: Effect of Bracing on Deflection of Beam
RE: Effect of Bracing on Deflection of Beam
I am also thinking that I should use 3.65m for deflection calculation but further elaboration whould be helpful.
RE: Effect of Bracing on Deflection of Beam
BA
RE: Effect of Bracing on Deflection of Beam
Never mind asking us, can you find a mechanism where it would have any effect? It is disturbing that you even ask.
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: Effect of Bracing on Deflection of Beam
Now if the mullions and transoms can both act like beams then I would do a deflection compatibility calculation if I really wanted to determine how the transoms assist the mullion.
RE: Effect of Bracing on Deflection of Beam
Asking such a simple and uninformed question indicates that you are not a structural engineer. This site is for sharing of information between engineering professionals. Please seek advice from an engineer in your area.
RE: Effect of Bracing on Deflection of Beam
BAretired here is a sketch
hookie66 Yes I am not a Professional Engineer yet.