Hi
why staad is not considering the torsional moment B as per SP 16.13330.2011 in Eq F(106).
it shows " Bi-moment : 0.000E+00 Value of Bi-moment not being entered!!!" like this in output file and
" CRITICAL CONDITIONS FOR EACH CLAUSE CHECK F.(106) (N/A+Mx*y/Iz+My*x/Iy+B*w/Iw)/(Ry*GammaC)= ( 476.7E-01/ 1.5E-02+ 959.2E-02* 1.50E-01/ 3.98E-04+ 312.5E-02* 2.00E-01/ 1.20E-04+ 0.000E+00* 2.80E-02/ 4.18E-06)/( 235.0E+03* 1.00E+00) = 5.08E-02=<1"
And also whats this BMT in design parameters used for ??!! could any one please help me to understand
This is just fixed beam with some torsion and forces to check.
My Staad pro version is staad pro v8i (select series 6) V 20.07.11.70tap.std
This was a known defect in STAAD.Pro SS6:
The bi-moment is not considered in STAAD.Pro SS6 2007.11.90, the Output reports: Bi-moment : 0.000E+00 Value of Bi-moment not being entered!!!
while the parameter BMT is specified.