Sorry my earlier question on this subject was wrong
The term should be System Overstrength Factor OMEGA
The correct question is
WE ARE SUPPOSED TO CONSIDER System Overstrength Factor OMEGA=3
FOR STRENGTH DESIGN A TYPICAL LOAD COMBINATION AS GIVEN BELOW
**EMPTY WEIGHT +THERMAL +SEISMIC
**X DIR
LOAD 105 : DEAD (0.6-.2X.152) +SS +TEMP +3 X 0.7SEIS(+X) +NOTIONAL X
REPEAT LOAD
1 0.5696 41 0.6 42 0.6 2000 2.1 14 2.1 3001 0.6 3007 0.7
**Z DIR
LOAD 107 : DEAD (0.6-.2X.152) +SS +TEMP +3 X 0.7SEIS(+Z) +NOTIONAL X
REPEAT LOAD
1 0.5696 41 0.6 42 0.6 2001 2.1 14 2.1 3001 0.6 3007 0.7
MY QUESTION IS DO I HAVE TO CONSIDER System Overstrength Factor OMEGA IN THE SERVICEABILTY LOAD COMBINATION TOO?