Crazy Chainsaw
Philosopher
- Joined
- Aug 12, 2006
- Messages
- 8,339
Just to be crystal clear on this - which drawing are you taking your detail from?
You haven't been explaining anything. The shear lag that you are citing would result in a variance of the effective flange width in the beam to girder connection. You are assuming that variance translates to a column. That is inane and serves merely to illustrate clearly your ignorance.
no bolt shear prevents that shear lag will not occur until girder walk off..
And what height are the side plates?
the height you described
Have a look at what you've typed and reword it into something coherent.
That is not my problem it is yours.
you're now talking about differential expansion between the 2 sideplates on the same column????
Yes because data shows that changes in radiant vs conductive heating will effect them that is why you need computer modeling.
Hopeless. Show which welds you mean on the structural drawing. Previously you asked about the 3/8 fillet weld up the side of the column to the sideplate.
I asked how the side plates were attached and used the information you provided to determine the conductive heating rate.
Not unless the column was magically rotated by 90 degrees it wouldn't. What you are talking about would result in an effective flange width decrease in beam to girde arrangements. Nothing to do with columns.
I specifically asked about side plates on the effected column did you intentionally provide me with miss information,
A little learning is a dangerous thing and you cited the wrong effect in the wrong place whilst accusing others who oppose you of being ignorant. The only thing that you are achieving here is to clarify that you have no inkling about the structural make up of this connection or how NISTs perceived conditions would degrade the connection.
I request you explain how based on a 3D expansion model on a millimeter cubed expansion, taking into account fire placement, radiant heating conductive heating,, fluidic cooling, geometrical deformation? Remember also your model must represent a high soot carbohydrate fire, not just simple heating.
I used the Information you yourself provided, if the information and drawings you provided in this thread are correct then what I have said is correct,
Except for the limitations of the program.
