Col Splice
Col Splice
(OP)
Attached is a col splice I designed and have nagging concerns about. It is a hopper platform of approx 11' by 16' with moment frames in each direction. Indoors, ASCE7-05, seismic cat "B", seismic shear is 0.05W, overstrenth factor of 3.0, Cd=3.0, used R=3.0. On the frame shown in the attachment the seismic load was 0.7kips applied at the top. Design mom @ splice 6.0 ft-kips, deflection approx 1". With overstrength factor the moment is 16.3 ft-kips. I did an approximate design on the splice plates. It is already erected...initially, the plan was to remove the 3/4"dia bolts and plug the holes...I may have them leave the bolts installed. It in the food industry and the requirement was no bolted connections. Any comments on the design are welcome...thanks






RE: Col Splice
RE: Col Splice
Best regards - Al
RE: Col Splice
Additional info on the col splice...I used an effective width of the 1" splice plates of 9" as a conservative approximation method of calculating the moment capacity of the plates..attached is a shot of the erected structure...
RE: Col Splice
BA
RE: Col Splice
Michael.
"Science adjusts its views based on what's observed. Faith is the denial of observation so that belief can be preserved." ~ Tim Minchin
RE: Col Splice
RE: Col Splice
RE: Col Splice
BA
RE: Col Splice
RE: Col Splice
It does look like there are some hard-to-clean areas at the gussets and other connections.