element quad

ebe79442114 · Post by **ebe79442114** » Thu Sep 04, 2008 10:26 am

I also want to know.

bayram_aygun · Post by **bayram_aygun** » Thu Sep 04, 2008 12:55 pm

Gomez,

Please take a look at this post. I'm sure it will clarify some questions for you.

<http://opensees.berkeley.edu/community/ ... aafd7ac5e6>

Good Luck,

P.S: For the future, I strongly suggest that you first search for the key words of your problem in the posted messages and if there are no related messages then you could try posting a new message. That way we would keep the forum more organized.

bayram_aygun · Post by **bayram_aygun** » Fri Sep 05, 2008 10:21 am

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 way your soil and structure will have a lumped mass matrix.

I hope this helps,

ebe79442114 · Post by **ebe79442114** » Wed Apr 22, 2009 10:47 pm

as I know:

kinematic SSI: mass density and stiffness of soil present, stiffness of structure present but mass of structure does not present. Is it true?

please see this my post:

opensees.berkeley.edu/community/viewtopic.php?t=12599

please excuse me for my poor english.

ebe79442114 · Post by **ebe79442114** » Fri Apr 24, 2009 11:25 am

Dr. silvia!

please move this post to soil users.

thanks.