Laterally braced beam
Laterally braced beam
(OP)
I have to design a lintel 40 feet long. It will be supporting 12" solid cmu wall above so top flanges will be embed. Is it laterally supported or not. I think not.
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RE: Laterally braced beam
RE: Laterally braced beam
For example, if there's a lower diaphragm, the wall might be stiff enough out of plane to provide bracing.
RE: Laterally braced beam
RE: Laterally braced beam
The 13th Ed. Spec. Appendix 6 provides ways to determine if a beam is braced against twist or compression flange lateral translation--prove one or the other or both.
Depending on the details of your situation, you might be able to show that it's braced. Of course it requires plenty of judgment.