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Steel Design problem, columns red, no error msg, ratio<1

Steel Design problem, columns red, no error msg, ratio<1

Steel Design problem, columns red, no error msg, ratio<1

(OP)
Hi gents,



I am presently working on a 7 story building using CSA S16-09. LFRS is a mix of Moderately ductile moment-resisting frames and Moderately ductile concentrically braced frames. When I apply steel design, some of the columns are red,even if the stress ratio is less than 1 and no error message is showing. Most of them are on the corners and on the last floor. Project file is attached. Etabs V9.5.


Anyone encountered this problem before?


EDIT: ETABS indicate BCC failure (beam column capacity ratio and can be fixed by changing beam section for a weaker beam or a column by a stronger column.

FIXED

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