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put the elements in different regionas and assign different damping values to the different regions

i.e. end of file should look like the following with the loadConst added:

analyze 1
puts "##### STAGE 1 - finished #####";

loadConst -time 0.0

pattern Plain 2 Linear { load 1 0 -1000 0 0 0 0 }

analyze 1
puts "##### STAGE 2 - finished #####";

here is another example in our git repo
https://github.com/OpenSees/OpenSees/bl ... ays/j1.tcl

you could try another modelbuilder provided just for testing material .. here is an example i used awhile back model UniaxialMaterialTest uniaxialMaterial Elastic 1 3000 uniaxialMaterial MinMax 2 1 -min -0.001 uniaxialMaterial MinMax 3 1 -max 0.001 uniaxialMaterial MinMax 4 1 -min -0.001 -max 0.001 ...

post the script so i can see how you are modeling the elements

checking this works

the results are different because the element is "CURRENTLY" (i.e I might change this) just printing forces based on end moments and element length .. the recorder is reporting element forces which are determined from basic forces transformed by the geometric transformation .. for your example you a...

create a load pattern with a single load on the node you wish to apply the load to .. the load actually applied during the transient analysis will be the value of the load at the node (the pseudo load) TIMES the load factor obtained from the time series.

these materials cause problems .. i have some newer materials for modeling walls .. you might even try forgetting the beam elements with these .. here is some code copied from an example put together by Dr. Petrone # Concrete # Parameters for the new concrete model set E [expr 36900e6*$Pa] ;#elastic...

yes .. we can't really keep the graphics parts operational .. best record them and use matlab

go read my dissertation, ignore chapters on parallel programming

opensees.berkeley.edu/OpenSees/doc/fmkdiss.pdf

don't use a recorder at all .. get whatever quanaty you are recording from the command line and write them to a file.

how do results compare with Umfpack

no .. but just end all but 1 processor, e.g.

# do parallel stuff
if {$myID == 0} {
# do sequential stuff
}

the prupose of 1 analysis step is to find the next converged stp, given the current converged step. In the nonlinear analysis the model usually will go through a number of trial steps. these are not on the solution path, but trial solution points. If the convergence test is satisfied at a given tria...