Dear Colleagues,
(i'm not sure if anyone has earlier raised the same query, if so please guide me to that respective post)
1) it can be noted that while checking for column deflection against DFF 200, the actual deflection is shown as 0.101m - is it calculated based on the resultant of the top most node of that column by SRSS (i.e) [(Dx^2)+(Dy^2)+(Dz^2)]^(1/2) ? ......as the resulting value is closer to what the output has listed.
2) but if I follow the SRSS approach for the beam, the value doesn't seem to match with the Max. displacement tabulated ... please advise as to how this is arrived; as though my vertical deflection is very much within the limit my DFF+CAN0 for this beam shows FAIL (due to this Max. displacement)
3) (further from #2) as the DFF + CAN0 seems to check with the Resultant / Max. displacement value, is it possible to incorporate a beam/column displacement/drift check for a 'specific' direction
(sample staad file attached for ref.)2023-04-11 (1).STD
hello ???
Apologies for the delay. This post somehow slipped through our eyes.1) Yes, the resultant displacement is calculated as you explained. More details can be found in the STAAD.Pro Help:2) To me the numbers seem to match fine. For beam #15, LC161 max resultant displacement is 27.82 mm as reported in the post processing table and is the same as in the Output file (0.028 m) which is more than the limiting value of 0.026 m.3) No, the deflections are calculated for the resultant displacement. You would need to perform a manual check if interested in a single direction only.
Answer Verified By: Dani Paul
Modestas said:More details can be found in the STAAD.Pro Help
thanks Modestas.
1) its my mistake, i didn't go thru much into the 'Notes' section -appreciate your support in guiding to the reference.
2) now i get the picture, the ACTUAL DEFL. in the OUTPUT aligns with the RELATIVE DISPLACEMENT within the STAAD GUI environment..... and the value in the RESULTANT column (of the RELATIVE DISPLACEMENT) is reflected in the MAX. DISP column (of the SECTION DISPLACEMENT under REPORTS)
3) got it
Modestas, i'd also like to request if it is possible to include an option for Beam Relative Displacement Summary as well...