huangyhg

beam continuous bracing by grating attachment
at what interval would clips be required for grating attachment to provide adequate continuous bracing of the compression flange of the support beam?
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i do not recommend using grating attachment for bracing the compression flange of beams. instead, we brace them with angles at right angles to the beams and provide diagonal angles back to the beam support.
i agree with jike, the grating attchments are not desined for the type of loads required to brace a beam.
csd
we don't rely on the grating for bracing. we provide beams at right angles to the grating support.
thanks to those who responded. i should have also mentioned that this is an existing platform and obstructions, (piping), prevent adding steel for bracing. we are trying to maximize allowable live load by using existing grating, (currently not attached), to restrain support beams against lateral displacement. i know the situation is not optimal, but we want to make the most of the cards we've been dealt. thanks again for your contributions. i hope to hear some more...
i do not rely on grating for beam bracing. can the grating be removed in some areas to allow bracing to be installed from above? or do the obstructions prevent bracing to be installed from above?
installing bracing is not an option. we want to utilize the inherent strength of the existing 1" thick grating. thanks.
pete2006,
what is your span length? what is the size of the main beams?
beam span is 18 feet and it's a w12x16.
pete2006,
how close are you from making the beams work if you consider the compression flage unsupported?
unbraced beam governs max live load at about 40 p.s.f. grating deflection would otherwise govern at about 140 p.s.f. adequately braced beam would potentially exceed grating capacity.

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