The OpenSees Community

Hi,

When I use the limit state material to simulate the flexure-shear column, I am confused this sentence "The drift capacity model requires all input variables for the OpenSees model to be specified in kips and inches, with the exception of the concrete compressive strength which must be given in psi." page 338 in the PEER report by Dr. Elwood.

Does the unit must be Kips when we input the force? Can I use the lb, in and psi for the simulation?

Vesna, thanks for your reply.

I download the source code from this website http://opensees.berkeley.edu/OpenSees/d ... wnload.php
Although the name is 2.3.2 (win 32 system), when I unzip the stable.zip file, you can find this code is 2.3.0.
Maybe there is some wrong for my downloaded files or the website. Could you give me a download link? Thank you!

Hi all,

The current version of OpenSees is 2.3.2, but the released source code in the Developer website is 2.3.0.
How can I get the latest source code?

I give you a example of a three story frame.
---------------------------------------------------------------------------------
timeSeries Path 1 -dt $dt -filePath displacement_1.txt -factor 1;
timeSeries Path 2 -dt $dt -filePath displacement_2.txt -factor 1;
timeSeries Path 3 -dt $dt -filePath displacement_3.txt -factor 1;

pattern Plain 1 1 {
sp 1 1 1
}
pattern Plain 2 2 {
sp 2 1 1
}
pattern Plain 3 3 {
sp 3 1 1}
----------------------------------------------------------------------------------

1. We put the measured displacement value in the files " displacement_*.txt" for each floor. In my example, there are 3 floors in the model.
2. We use constraints Penalty and integrator LoadControl.
3. I find if you use the "load" command, the load ratio can be used. But when we use the "sp" command, the displacement ratio may not be used. We have no choice but to put them in different displacement file for each floor. You can try it.

Bin WANG

Your mean that other story drifts match well with the experimental result, is only the 1st greater larger than that obtained from experiment ?

sometime this error is from the wrong writing of "-time".

If you copy the recorder sentence from the Openseeswiki, and paste them in your TCL file. There may be have a error for the output.
But if you type the sentence yourself, there may be successful.

1. You can use the "timeSeries" and corresponding "pattern" for each each floor.
For example, Path 1 -dt $dt -filePath displacement.txt -factor 1;

2. Use the SP command.

You can use the equalDOF command to do the rigidDiaphragm in 2D frame.

Dear Moderator:

I find that the Uniaxial Material Command “Reinforcing Steel Material” seems not work in the newly version 2.3.0, but I can use it in Version 2.2.2. I want to know whether other users have the same problem or not.

Thank you for your kindly reply.