gravity loades in nonlinear dynamic analysis

[robab]

Hi
how can I define gravity load combinations in nonlinear dynamic analysis? I define this load combination with eleload for point load and then perform nonlinear dynamic analysis but loads dont consider. how can I consider this load combination? is it require perform static analysis before dynamic analysis?
thanks

[fmk]

most people do do the static gravity before the transient .. issue a loadConst -time 0.0 after the static .. look at the examples (example 3.3. for example)
http://opensees.berkeley.edu/wiki/index ... les_Manual