member releases
member releases
(OP)
I an trying to design a temporary working platform around a column.The platform size is 1.1 x 1.1 m.The working surface is a wooden deck.The members(CHS 76X6) overlap each other and are connected to column flange and each other with the help of clamps.I would like to know if there are any releases possible.The loads have been considered as per ASCE 37-02. The staad model is attached for review.Any kind of help would be appreciated.






RE: member releases
RE: member releases
Dik
RE: member releases
I know there's testing behind what they're doing, but the fact that it looks like vertical load is being taken up by friction in the clamps scares me. I'm not sure I'd want to go up on that, when life safety is dependent on the QA/QC process of the contractor's clamp tensioning procedure.
RE: member releases
If everything is clamp connected then my assumption would be pinned.
RE: member releases
RE: member releases
That being said, looking at your model, at the very least I would release the torsional fixity. (And maybe do an offset to better represent the fact the members are on top of each other.) Not 100% sure what to say about moment that could cause the pipe to slip out of the clamp......but you probably have fixity perpendicular to that since it probably can't force the clamp open in that direction.
Probably some type of diagonal(s) (back to the column; in plan view) would give you the stability you want.