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Hi all! My name is Alessandro Paparo and I am a phd student at EPFL in Lausanne (CH). I am wondering if Opensees was already used for some analysis of unreinforced masonry wall buildings (for example are present the different failure mechanisms, is present the sigma-epsilon behavior of a masonry wal...

thx!!!

hi all!!

I have to ask a question about non linear elements. Do you now who i can understand if i used DISPLACEMENT ELEMENT OR FOR ELEMENT for my analysis? I cannot find it in my script...

thx very much!


ale

HI ALL! I performed some pushover analysis for single frames from a 3D structure. In order to to the pushovere analysis I took the single frame, for the 3D model, and i did the analysis. I performed the static analysis usìng the gravity load one time using eleload and one time using nodal load. The ...

hi all! i want to do a pushover analisys. i write the script, but Opensees says to: "WARNING bad command - want: load nodeId 6 forces Input command: load 11 0 1142100.0 0 WARNING - error reading load pattern information in { }" whta it means? i don't understand where is the problem. My scr...

ok.

thank you anyway

alessandro

hi all!

someone knows if does exist an envelope recorder command for the drift (like the EnvelopeNode disp, but for the drift)????

thx!

alessandro

ok

thx!

hi all! i started an analysis for a 3d frames, now i'm emprooving studing a simple elastic 3d portal ( 4 nodes as constrain, 4 nodes free and 1 node for the rigidDiaphragm). also the masses are concentrated ad the 4 free nodes. now i have 2 questions: 1) for the rotational inertia i have to put some...

ok

actually it isn't my professor, but i could talk to him.

thank you very much!

ok

thx!

yes. but i don't find any error. plese check it (noone in my university can help me...) # set up wipe; file mkdir Data model BasicBuilder -ndm 2 -ndf 3; set HCol35 350; set BCol35 350; set HCol40 400; set BCol40 400; set HCol45 450; set BCol45 450; set HBeam 500; set BBeam 350; set X1 0.; set X11 20...

hi all! how can i improve this subroutine for a dinamic analysis? sometimes opensees tell to me: "WARNING - ForceBeamColumn2d::update - failed to get compatible element forces & deformations for element: 421422(dW: << 2.35492e+012) Domain::update - domain failed in update Newmark::update() ...

ok.
thanks!

Hi all! When i run a dynamic analysis for a MDOF system, i must use a different mode of programming from the programmation for a SDOF? For example, for a SDOF for uniform acceleration input at all support nodes, I have to put: " set GMdirection 1; set GMfile "R2.acc" ; set GMfact 1.0....