The OpenSees Community

go to online OpenSees manual and then find your material in INDEX

In that case, it doesn't seem easy for me to use OpenSees in our cluster.

Thanks Frank,

Hi, I am trying to use a large computer cluster,named Ada, at Rice University. "Ada" is running SuSE 9.0 Linux and the 2.6.5 kernel, with small changes made by Cray, particularly for their RapidArray interconnect. The IT guys over here need a Linux-compatible OpenSees version. Where can I get it? Di...

Hi, I might try to use a large computer cluster,named Ada, at Rice University. "Ada" is running SuSE 9.0 Linux and the 2.6.5 kernel, with small changes made by Cray, particularly for their RapidArray interconnect. I have never compiled and debugged a very large C/C++ program before and I don't have ...

Thanks a lot. Let me read through this document and I hope I'll gain some theoretical insight and reassurance about what I have experimentally observed

Hi, I have a 2D bridge-soil-pile foundation model in OpenSees. I can get the eigen file which has the mode shapes and the mass matrix which has all the nodal masses along their DOFs. Somehow when I apply the ordinary structural dynamics rules to get the mass participation factors, I don't seem to ge...

1) You might want to email Zhaohui Yang (zhyang@ucsd.edu) Ahmed Elgamal (elgamal@ucsd.edu) to inquire about this. 2) You can also try to look at the "opensource" soil program DEEPSOIL <http://cee-zzvy.cee.uiuc.edu/Website/Deepsoil/> to find out whether there is a way for you to get to "equivalent" R...

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Hi, I'm attaching two links which will have explanatory notes on how I tackle the mass participation factor issue in OpenSees. Most of the codes are NOT written by me and I have to admit that the codes might have to be modified according to your individual needs. www[dot]owlnet.rice.edu/~ba2/Modal_A...

Hi, This is briefly what I know about SSI (Soil-structure-interaction): Kinematic SSI ==> Assign mass to the structure, assign mass to the PDMY, don't assign mass to soil quad elements. Inertial SSI ==> Assign mass to the structure, assign mass to the PDMY, assign mass to soil quad elements. That wa...

Gomez, Please take a look at this post. I'm sure it will clarify some questions for you. <http://opensees.berkeley.edu/community/viewtopic.php?t=4845&highlight=quad+density&sid=795335ff34a3bae9faca49aafd7ac5e6> Good Luck, P.S: For the future, I strongly suggest that you first search for the key word...

You may need to contact the authors of that specific material.

Good Luck,

Hi everybody, I'm trying to validate my OpenSees soil column model with Cyclic1D (<http://cyclic.ucsd.edu/>) but I'm getting inconsistent results. To be more clear, pore pressure ratios in clay layer are similar whereas loose sand pore pressure ratios are different. Cyclic1D shows that my soil layer...

The computer I'm using is a 32bit, dual core computer with Windows XP. I doubt that memory is going to be a problem (1.95GB of RAM).

What else can be the problem?

I was using OSP to visualize my bridge-foundation-soil model but I don't feel comfortable with the mode shapes I'm getting with OSP, so I turned to the viewing codes Silvia posted here. I'm using the latest version (v2.0.0) and I'm able to run the procedures without getting an error, BUT when the fi...