Hello all!
Could you please explain me why we need to use MODB in DYNA making wind analysis for example?
+PROG SOFiLOAD
LOOP#i 3
LC no 1000+#i type W CRIT 1200/37.35 titl “DAVE”
COPY no 1 $ Static wind load
RESP type WIND clas DAVE
ENDLOOP
END
+PROG DYNA
SYST prob LINE
CTRL opt SOLV val 4
GRP no -
EIGE neig 3 type REST
MODD d 0.04777
LC no 1000 MODB 1000 $ Why is it here?
EXTR type U max 100 styp SRSS act w
EXTR type A max 200 styp SRSS act w
END