horizontal brace as lateral force resisting system
horizontal brace as lateral force resisting system
(OP)
I have a very minor platform, just 4' high. All beam to col and support are pinned, all are angle members.
I added horizontal brace.
I believe this will work but when I run the analysis, it's unstable (huge column drift) basically the horizontal brace is not acting as part of lateral force resisting system.
I'm curious about using horizontal brace as part of lateral force resisting system.
Of course this will work if I assume moment connection for the beam to col or use vertical brace so that is not my question.

I added horizontal brace.
I believe this will work but when I run the analysis, it's unstable (huge column drift) basically the horizontal brace is not acting as part of lateral force resisting system.
I'm curious about using horizontal brace as part of lateral force resisting system.
Of course this will work if I assume moment connection for the beam to col or use vertical brace so that is not my question.







RE: horizontal brace as lateral force resisting system
RE: horizontal brace as lateral force resisting system
hokie66 is correct it is unstable as currently configured.
RE: horizontal brace as lateral force resisting system
A nominal moment connection between you beams and columns would likely suffice at only 4 ft tall.