Search found 9 matches

by yegoroff
Tue May 12, 2015 9:41 am
Forum: OpenSees.exe Users
Topic: Radiation Dshpot
Replies: 2
Views: 732

Re: Radiation Dshpot

You can define a uniaxial Viscous material, which will define your C parameter: uniaxialMaterial Viscous $matTag $C $alpha (http://opensees.berkeley.edu/wiki/index.php/Viscous_Material) Additionally, you can define your K parameter using an uniaxial Elastic material: uniaxialMaterial Elastic $matTag...
by yegoroff
Mon May 11, 2015 3:31 pm
Forum: OpenSees.exe Users
Topic: SDOF and soil column connection
Replies: 1
Views: 416

SDOF and soil column connection

Hi, I am modelling a soil column (ElasticIsotropic and PressureDependMultiYield02 materials) with an attached SDOF to it. I attach the SDOF to the soil column using the following method: ---------------------------------------------------------------------------------------- set MidTopX [expr {int((...
by yegoroff
Tue May 05, 2015 9:28 pm
Forum: Documentation
Topic: stress, strain recorder for soil domain
Replies: 4
Views: 3330

Re: stress, strain recorder for soil domain

Dear fmk,

could you please explain how this recorder works and what does it actually record? (11, 22, 12)?

I was struggling to find a good explanation on the wiki.
by yegoroff
Sun May 03, 2015 7:35 pm
Forum: OpenSees.exe Users
Topic: zeroLengthContact2D element error
Replies: 0
Views: 796

zeroLengthContact2D element error

Hello, I am using a zeroLengthContact2D element in my script to simulate the friction between the base of the SDoF and the soil deposit. However, after running the script I end up with the following error: WARNING FullGenLinLapackSolver::solve() - lapack solver failed - 1 returned WARNING Accelerate...
by yegoroff
Thu Apr 16, 2015 12:56 pm
Forum: OpenSees.exe Users
Topic: peer ground motion
Replies: 4
Views: 1436

Re: peer ground motion

You should read them horizontally and it would be good to provide the script with the file, which has got only one number in a row. Additionally, quite often you may want to apply the earthquake scaled to a certain peak ground acceleration, which cannot be done using the record handler from the exam...
by yegoroff
Sat Apr 04, 2015 6:25 pm
Forum: OpenSees.exe Users
Topic: time history analysis
Replies: 2
Views: 590

Re: time history analysis

I assume that the reason is in your analysis bit and truncation/convergence errors.
Try to play around with different types of integrators, tests, etc.
At least, that's what was suggested earlier with a similar type of error:
http://opensees.berkeley.edu/community/ ... =2&t=60632
by yegoroff
Sat Apr 04, 2015 12:37 pm
Forum: OpenSees.exe Users
Topic: Soil-Structure Interaction + Single Degree of Freedom
Replies: 2
Views: 782

Re: Soil-Structure Interaction + Single Degree of Freedom

The thing is that I don't know the theory well as I did not had any dynamics modules yet. So far I have made the model of my soil column and the model for SDoF. The next step will be combining these two together. While as the the soil models works (at least I get something I expected), the SDoF does...
by yegoroff
Tue Mar 24, 2015 6:42 pm
Forum: OpenSees.exe Users
Topic: Soil-Structure Interaction + Single Degree of Freedom
Replies: 2
Views: 782

Soil-Structure Interaction + Single Degree of Freedom

Hello. I am currently writing my dissertation on the SSI effect and I have already modelled the soil and SDoF separately. At the moment, I am applying the earthquake accelerations at the bedrock, getting the accelerations at the ground level and applying them directly at the base of the SDoF. I unde...
by yegoroff
Mon Feb 02, 2015 2:51 pm
Forum: OpenSees.exe Users
Topic: BuildingTcl 1.9 Has been released!!!
Replies: 112
Views: 78369

Re: BuildingTcl 1.9 Has been released!!!

Up.

All the links now seem to be broken.
It would be good if somebody could upload the latest version of Building Tcl somewhere.

Cheers.