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could you please explain about 3 dimentional MPA pushover?
i will be appreciate if anyone have an example.

Hi As you know in first story: storydrift=story displacement, so in the following code it should be : recorder Drift -file Data/drift-story1.out -time -iNode 3 -jNode 13 -dof 1 -perpDirn 2 recorder Node -file Data/Displacement-base.out -time -node 3 -dof 1 disp recorder Node -file Data/Displacement-...

Hi I use this code for gravity analysis: set GravSteps 20 system UmfPack; constraints Transformation; test NormDispIncr 1.0e-6 100 0 algorithm Newton numberer RCM; analysis Static analyze $GravSteps loadConst -time 0.0; why the result are different when GravSteps change? For example the result for “...

hi
so how could define torsional stiffness for W12x114 in this example?

thanks in advance

mhscott wrote:
> It should be Legendre in the latest version of OpenSees.

thanks dear mhscott
what about version 2.4? Did you mean Lobatto and dispBeamColumn element is wrong?

civil wrote: > dear mhscott and other friends > > I use dispBeamColumn element in opensees version 2.4 and when i use print > ele $eleTag command, it is Lobatto. > > 1) Did you mean Lobatto and dispBeamColumn element is wrong? > 2) Are my analysis results wrong in this case? > 3) how can we define L...

dear mhscott and other friends I use dispBeamColumn element in opensees version 2.4 and when i use print ele $eleTag command, it is Lobatto. 1) Did you mean Lobatto and dispBeamColumn element is wrong? 2) Are my analysis results wrong in this case? 3) how can we define Lobatto or Legendre for elemen...

dear frank
please sau us about this problem. why the results are different in opensees 2.4.0 & 2.4.2?

fmk wrote:
> either you only have 5 modes or you have duplicate modes .. as 3d building,
> if symmetric you might have duplicates, try upping number of modes by 2
> from what works.


dear Frank,
could you please explain it more?

for computing Rayleigh Damping 2 mode should be used. what are these mode?
are they first mode and nth mode which Tn=0.1 T1?

dear vesna
sorry for inconvenience.
could you please tell me the local axes Direction? is local y axis facing up and local z axis to the right?
why is it counter-clockwise?

Thanks
Dear vesna
could you please tell me why it is clockwise in :
http://opensees.berkeley.edu/wiki/index ... ection.tcl
i think it is case 1. is'nt it?

so in case of 1 & 4 it should be clockwise and in case 2 &3 it should be counterclockwise.
Is it true?

does it depends on local axis? what does it should be in 1 to 4 cases? counter clockwise or clockwise? 1- local y axis: is facing up, local z axis: is to the right 2- local y axis: is facing up, local z axis: is to the left 3- local z axis: is facing up, local y axis: is to the right 4- local z axis...

thanks dear vesna
how can i define the distance between 2 section?