Good day,
My member element in STAAD is only 0.61-m however I want to analyze it at 2.4-m because that's the total length of the cantilever. To do that, I assigned a design parameter LT = 2.4 m and an additional factor of KT = 2.5 for W-Flange cantilever design. For some reason, this isn't affecting the design results at all ... it looks like it's still analyzing at the original 0.61-m length with no K factor. Please help!
Here's my input:
PERFORM ANALYSIS
PARAMETER 4
CODE CANADIAN
FYLD 350000 ALL
*
PARAMETER 5
CODE CANADIAN
FU 440000 ALL
*
PARAMETER 6
CODE CANADIAN
LT 2.4 MEMB 139 141
LY 2.4 MEMB 139 141
LZ 2.4 MEMB 139 141
KT 2.5 MEMB 139 141
KY 2.5 MEMB 139 141
KZ 2.5 MEMB 139 141
*
PARAMETER 7
CODE CANADIAN
TRACK 2 MEMB 139
*
PARAMETER 8
CODE CANADIAN
CHECK CODE ALL
FINISH
In my Track 2 results for that member, it appears the unbraced length = 0 and LT doesn't get used anywhere in the calcs.
communities.bentley.com/.../1777.STAAD-Track-2-output-_2D00_-Unbraced-length-Q.txt