Filler shim at MC 1

[Veer007]

Hi All,

This is the concern regarding the filler shims at the (w-shape Gr.50-A992) moment connection bottom where flange plates are fastened using 3/4 dia A325 Bolts. The steel fabricator advised me to provide a 3/16" gap for galvanizing process and 1/8" for erection clearance. I just wonder as it seems much gap for bolted moment connection for galv. steel, are there any AISC guidelines/standards regarding this, or Am I just wrong in this case?

Thanks in advance!!

 

[sbisteel]

Seems backwards, I'd think it'd be 1/8" for galv an 3/16" for depth over run and flange tilt. Either way, you do need that additional space in there. Field shims should be used for bolting, and also for welding if the fit up leaves a gap greater than 3/16".

 

[rb1957]

how does the bottom plate penetrate the continuous (out of plane) beam ?

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

 

[Veer007]

how does the bottom plate penetrate the continuous (out of plane) beam ?

Bottom plate must be stopped at the beam web not thru.

Thanks in advance!!

 

[SWComposites]

And you are counting on the welds to make the plate "continuous"??