Search found 9 matches

by Thomas_Tang
Sat Feb 14, 2009 10:14 pm
Forum: OpenSees.exe Users
Topic: Version 2.1.0 released
Replies: 10
Views: 10450

I am wondering how to use the new command for generating a shallow foundation.

Could you please list all the input arguments for each new command?
Otherwise how can we get the new features work correctly since the help documentation has not been updated?

Thanks!
by Thomas_Tang
Thu Feb 12, 2009 11:29 am
Forum: Soil Modelling
Topic: SSI: Contact Interface Model (CIM)
Replies: 7
Views: 15604

Jose,

Thank you a lot for sharing your experience!
by Thomas_Tang
Tue Feb 10, 2009 1:44 pm
Forum: Soil Modelling
Topic: SSI: Contact Interface Model (CIM)
Replies: 7
Views: 15604

Dear Jose, I am sorry that I still cannot get results comparable to those in Fig.4.12(b). Firstly, can you please confirm some details in the input Tcl file on Page 116-118 in PEER Report 2007/04? 1) I changed the last line on Page 116 to be set wFloor -7.8e+4 I think "hFloor" should be a ...
by Thomas_Tang
Sun Feb 08, 2009 11:18 pm
Forum: Soil Modelling
Topic: SSI: Contact Interface Model (CIM)
Replies: 7
Views: 15604

Many Thanks!

Dear Jose, I appreciate your quick reply! What you typed is very helpful and encourages me to use the model. I did contact Dr. Gajan to know the exact input arguments for CIM in current version of OpenSees. I will double check my codes and postprocess of the output. I will let you know if I overcome...
by Thomas_Tang
Sat Feb 07, 2009 5:10 pm
Forum: Soil Modelling
Topic: SSI: Contact Interface Model (CIM)
Replies: 7
Views: 15604

SSI: Contact Interface Model (CIM)

Hi, Does anyone have experience in using the CIM to model soil-structure interaction of shallow foundations? Have you obtained reasonable results? Many thanks! I tried to regenerate Figure 4.12 in PEER Report 2007/04 using their attached input file on Page 116-118 with minor necessary corrections. H...
by Thomas_Tang
Mon Jan 05, 2009 10:07 pm
Forum: OpenSees.exe Users
Topic: Recorder Element globalForce
Replies: 1
Views: 2910

I have the same question.

The manual says:
"globalForce - element resisting force in global coordinates (does not include inertial forces)".

Does it mean the viscous damping force is excluded from the output globalForce as well?

Thanks!
by Thomas_Tang
Sat Apr 19, 2008 3:35 pm
Forum: OpenSees.exe Users
Topic: Display command does not work
Replies: 0
Views: 2576

Display command does not work

To display the first mode shape, I wrote ... eigen 1 set nEigen 1 set dAmp 10 display -$nEigen 0 $dAmp; # display mode shape for mode $nEigen ... But I got the error message,"invalid command name "display", when running my script by OpenSees V1.7.5. Is "display" no longer a ...
by Thomas_Tang
Mon Mar 31, 2008 9:00 am
Forum: OpenSees.exe Users
Topic: ZeroLength contact element
Replies: 2
Views: 5771

Thank you very much, Frank!
Thanks to Dr. Wang!
by Thomas_Tang
Wed Mar 26, 2008 11:43 am
Forum: OpenSees.exe Users
Topic: ZeroLength contact element
Replies: 2
Views: 5771

ZeroLength contact element

Can anyone tell me the command and associated arguments to use the newly implemented ZeroLength contact element in Version 1.7.5?
What is the exact mechanical behavior of this element?
Is it proper to model the uplifiting between foundation and soil?

Thanks a lot!!!