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Hi every one
i was wondering if you would mind saying me how i can save energy of structure.
I used this comment but when I run it, give a error to me.

recorder Energy -file $dataDir/energystrainele.out -time -ele all -cumulative strainEnery;

If you send for me your script I will try to solve your problem.
but you must use penalty or Transformation instead of plain as stated in Arash thesis.

Thanks for your reply
I want to know how can I use non prismatic element in hinge?
or is it possible that characteristic of hinge be non prismatic in the length of it? if it is how?

Hi
How can I model non prismatic
elements?

Hi
I want to know is it possible in "element beamWithHinges" using spring instead of section tag, or no?

Hi dear fmk I want To model RBS(reduced beam section) and I used element joint2D instead of hinge or RBS and gave central node the behavior of RBS connection . I thought that I could get the exact answer by this method but I dont know why frame be stiffener instead of be softer! do you think using e...

Hello every one When I add fictitious element to my model for considering p-delta effect the model give me error. do you know why? wipe; model basic -ndm 2 -ndf 3; file mkdir DataFramePin; # define Units-------------------------------------------- set m 1; set cm [expr 0.01*$m]; set cm2 [expr $cm*$c...

Hi every one I can not record the reaction when I use elementjoint2D and opensees when I use it give me error and doess not run program? why? # clear memory of all past model definition wipe # set up name of data directory # create data directory file mkdir $dataDir #################################...

Thanks for your help How can I solve this problem? When I put "Tol 1.0e-8" the model didnt convergence ,when I put "Tol 1.0e2" the model convergence! I really appreciate if you help me? I cant put my model on "Message board" because is very near to final model of my pro...

Hi In my modeling when I change "NstepGravity", then period of structure changed. why? Thanks alot. updates tangent stiffness at every iteration set NstepGravity 10; # apply gravity in 10 steps set DGravity [expr 1./$NstepGravity]; # first load increment; integrator LoadControl $DGravity; ...

hi I am sorry for my English. I want to model a panel zone in a frame. At the first I model one panel zone in the frame but when I run, give a error . can you tell me my mistake. # -------------------------------------------------------------------------------------------------- wipe; model basic -n...

how can i model RBS connection?

hi
dear fmk
How can i model panel zone?
do you have any script about panel zone?

tanks for your help

thanks for your help
I send for you a paper by email. there is model of frame(without RBS). please see paper and say me my mistake.