The OpenSees Community

I am wondering if OpenSees confirms this bug? Or maybe using new version I missed something?

I believe that reliability analysis for version 2.5.0 has a bug. I have a code which works with 2.4.6 correctly but with current version of 2.5.0 gives me zero for displacement sensitivity with respect to E. The code is as follows (simple cantilever beam with elastic section): #---------------------...

Dear Frank;
I am not smart enough in TCL and Tk, I will try to do what you suggested, but I appreciate if you could put a simple example in Community Forum.
Best regards;
Ramin

Dear All; I want to use kind of intensifying sinusoid as an excitation witch have linear trend. I want to know how I can combine Sine Time Series which is produced by "Sine $tStart $tFinish ..." and Linear Time Series which is made by "Linear..." command. mathematically product o...

Dear frends;
I understand that when I replace 1/$ax by 1./$ax; my problem is solved.
I just want to know if my way is the better one for this goal or not?

Dear All; I want to use harmonic analysis for one story and one way frame. I want repeat this analysis ten times and in each, period of harmonic will change and I want save results in separate files, therefor I defined a loop with "for". then analysis were done without any error and warnin...

thank you all

Dear Silvia; As I said;I have worked VERY hard on this model, but i’m unsuccessful to find way to solve the problem. when I put the load about zero; the problem would be solved, but this isn't the good way, because existing loading is logic. I really confused. the model is really simple,please help ...

Dear friends; I really need your help. I build very simple model, a steel frame (one bay one story) with nonlinearbeamcolumn element and steel01 for material. but I faced to error. It is very important for me to find the reason. I put the time, but unfortunately I cannot find the reason; so please h...

Dear Silvia; I am very happy for your immediate reply. As you see in my code, I used Linear transformation not corotational transformation. I check my model by controlling reactions and when I use eleload, reactions are zero! but when I used command "Load" everything is OK! could you pleas...

Dear Opensees's Users; Especially Dear Silvia; I wish you are doing well. After some years I come back to Opensees family. I almost forgot this program and I start it again. I remember that there was problem when sb use eleload in companion with nonlinearbeamcolumn element and Micheal supposed to so...

Where can I find the last version of manual in order to DOWNLOAD?
could you please help me?

thank you very much but please let me know your idea about my second question too,I want do pushover and I need eigen value in order to get performance point .using which eigen value is more rational?

Dear silvia and friends I found very amazing problem! In following simple model I need eigen values. After applying gravity load I obtained eigen values which are different from initial eigen values before applying gravity loads. It is more interesting that when I use Linear transformer, another res...

Thank you so much, base on your reply I could continue my thesis by using this command without any doubt.