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Dear All,

I want ti model a underground tunnel using opensees. Can anyone help me out in any way? any suggestions, sample works or documentation provided is highly appreciated.

Best regards

Dear All,

I would really appreciate some help.
Nobody has no suggestions for this issue?

Im waiting
thanks

Dear All,

No opinions?

Im still waiting

Thanks in advance

Dear mattroidena1,

I too need to model SFRC in opensees. Can u share me the material model u used and any other supporting info ?

I will be very appreciated,

Regards

Dear All,

I need to model the tunnel and soil system in opensees.
Does anyone have any ideas or examples for me to start with?

I would greatly appreciate any help ASAP

Best Regards,
MJ

Salam

There is a command called 'shallowfoundationGen' which can be useful for you:
http://opensees.berkeley.edu/wiki/index ... ndationGen

Regards
MJ

Hi
This is my question too. What exactly is the output of the element recorder/section/stiffness?
Moreover : What is the output of element recorder/section/deformation?
& finally: What is the output of element recorder/section/force?

I'm really stuck, so plz help me out on these issues.
Regards

Salam, First of all, I forgot to paste the first line. write for {set i 5} {$i<=7} {incr i} { at the beginning of the code I provided above. The choice of the ground motion factor and step is up to yourself. Actually you only chose the step and initial ground motion factor, i.e. 0.4g and 0.2g in my ...

> Hi ftoledoj; The Toldynamic variable is a variable which you can u can change to reach convergance in your analysis. The default is 1.e-3, but you can increase it to reach higher precision in your analysis (for example 1.e-8) or if you have convergance problems in your script, you can reduce this ...

Dear All, I've recently installed OSN ver 2.5 ( the version which is run from inside matlab), It opens up ok, I can define the geometry and nodes, but when I want to define materials amd elements, it returns errors in matlab command window ( error message: callupdate error ) and I'm not able to defi...

I figured it out. As u said and suggested by vesna for nonlinearbeamcolumn elements, I used very stiff truss elements between the nodes I used for defining the beams, and removed the equaldof command and it worked!:) I got equal disp's in all nodes. The reason for the low disp values, was due to ver...

Many thanks for your time and devotion, I really appreciate it.
Yes, as I said there's no problem in pushover.I've send u the EQ file ( my email: mja441@gmail.com)
I'll give vesna's suggestion a try and let u know of the results.

Regards,

Mohammad

Dear Eidini, I performed pushover analysis in my CBF-inverted V model successfully, but in IDA analysis, I've encountered the following problems: 1) The model is showing very stiff behavior, for example it gives very small drift values at very high intensities which is wrong. 2) The roof isn't behav...

Once again many thanks,

mamnoon

Many thanks Maryam,

It solved the problem.

By the way , are u iranian?

regards