recording transient analysis

[rafetsisman]

hi,

i've been modelled a 3D frame structure and loaded it with dynamic ground motion, after all i use this code to record the nodal displacements:

recorder Node -file frame_solver_node_disp.out -time -node 100 200 400 600 101 201 401 601 -dof 1 2 3 disp

then i got 24 displacements(3 for each node), probably those are the displacements caused by the last step of ground motion data, but i want all of the displacements at each step, for instance:
time= 0.00 dispx=...dispy=...dispz=...
time=0.02 dispx=...dispy=...dispz=...
. .
. .
meanwhile my time step is 0.02 in time series, how can i perform that.

thanks in advance

[fmk]

you should get what you want with the command. if you want t=0.0 you will have to issue the command "record" before you do the first analysis and after the recorders have been created as record is only invoked AFTER an analysis is successful. Also, because you have the -time flag, the first column will be the time in the domain when the recording is made. if you are doing transient analysis and dt is 0.02 these values should be 0.02+/- some numerical roundoff.

[rafetsisman]

thank you a lot

i've just noticed my fault i made a mistake in codes

[mohammadbeik]

hello everybody
I have modeled a platform with pile-soil interaction,everything is ok but after time history analysis the specific result is the same for every EQ record,why?!
thank u in advance