Search found 112 matches

by arbarbosa
Wed Mar 12, 2014 12:15 pm
Forum: OpenSees.exe Users
Topic: SAP2000 vs. OpenSees Pushover Curve
Replies: 12
Views: 9990

Re: SAP2000 vs. OpenSees Pushover Curve

For large structures, since there are only a few large-scale tests that have been done, the validation of the numerical response should be done at a component level. Then you should get back to some engineering fundamentals to check global and local responses. For component validation, there is a lo...
by arbarbosa
Tue Oct 25, 2011 5:34 am
Forum: OpenSees.exe Users
Topic: Tapered Beam
Replies: 2
Views: 1040

Re: Tapered Beam

For modeling a tapered beam, you can use the forceBeamColumn element and assign different sections to the element using the "-sections $secTag1 $secTag2...". You will need to assign a different section for each integration point along the element. Please have a look at: http://opensees.berkeley.edu/...
by arbarbosa
Wed Sep 07, 2011 7:13 am
Forum: Framework
Topic: Element local forces XML header typo
Replies: 0
Views: 609

Element local forces XML header typo

Hi Frank, There seems to be a very small typo in the ElementOutput header. I think the sixth ResponseType should be Mz_1? <?xml version="1.0" encoding="UTF-8"?> <OpenSees xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation = "http://OpenSees.berkeley.edu/xml-schema/...
by arbarbosa
Fri Apr 22, 2011 11:47 am
Forum: Parallel Processing
Topic: Redirecting stdout and stderr for each $pid
Replies: 2
Views: 3401

Re: Redirecting stdout and stderr for each $pid

Thanks Frank. Would something like is described in the following link work? Would OpenSeesMP have to be compiled with mpich2? h***://wiki.mcs.anl.gov/mpich2/index.php/Hydra_Output_Redirection For now, I tried the following "mpiexec -l -np 3 OpenSeesMP runAll.tcl > logFile.out 2>&1" where the "-l" op...
by arbarbosa
Thu Apr 21, 2011 12:27 pm
Forum: Feature Requests/Future Directions
Topic: Requesting absAccel/absVel/absDisp
Replies: 6
Views: 5803

Re: Requesting absAccel/absVel/absDisp

Maybe what may be useful is something like the following command to output absolute accelerations (velocities and displacements, also) in X, Y and Z, for example:

recorder Node -file output.out -timeSeries $IDloadTagX $IDloadTagY $IDloadTagZ -time -node 1 -dof 1 2 3 accel

Thanks
by arbarbosa
Tue Apr 19, 2011 5:43 am
Forum: Parallel Processing
Topic: Redirecting stdout and stderr for each $pid
Replies: 2
Views: 3401

Redirecting stdout and stderr for each $pid

Hi, How can I redirect stdout and stderr for the process running in a $pid to a different file (see example below)? I tried the following command that outputs all stdout and stderr from all $pid to the same logFile: mpiexec -np 3 OpenSeesMP runAll.tcl > logFile.out 2>&1 Thank you Andre *************...
by arbarbosa
Mon Mar 14, 2011 1:13 pm
Forum: OpenSees.exe Users
Topic: patternUniform excitation and timeSeries
Replies: 7
Views: 5047

Re: patternUniform excitation and timeSeries

I agree. Why don't you add it to future requests?
by arbarbosa
Sun Mar 13, 2011 7:48 pm
Forum: OpenSees.exe Users
Topic: patternUniform excitation and timeSeries
Replies: 7
Views: 5047

Re: patternUniform excitation and timeSeries

Thank you for the reply. I had also reached that conclusion that for now it does not seem to be possible, but by trying out on a cantilever SDOF. In an effort to reduce the number of recorders for a big structure, it might be worth adding an option that for a 3D case could look something like "-time...
by arbarbosa
Sat Mar 12, 2011 3:42 pm
Forum: OpenSees.exe Users
Topic: patternUniform excitation and timeSeries
Replies: 7
Views: 5047

Re: patternUniform excitation and timeSeries

Thank you for the reply. It worked well. One more question. Would the format be the one I have in the next line if I want to use one recorder to output the absolute acceleration in more than one direction, for example X and Y? recorder Node -file output.out -timeSeries $IDloadTagX $IDloadTagY -time ...
by arbarbosa
Fri Mar 11, 2011 11:34 am
Forum: OpenSees.exe Users
Topic: Eigen analysis
Replies: 7
Views: 1957

Re: Eigen analysis

By the way, it might be worth changing the very nice and clear example of the eigen analysis shown available in: http://opensees.berkeley.edu/wiki/index ... hear_frame

Thanks again for the good job.
by arbarbosa
Fri Mar 11, 2011 11:21 am
Forum: OpenSees.exe Users
Topic: Eigen analysis
Replies: 7
Views: 1957

Re: Eigen analysis

Thank you very much again.
by arbarbosa
Thu Mar 10, 2011 6:51 pm
Forum: OpenSees.exe Users
Topic: patternUniform excitation and timeSeries
Replies: 7
Views: 5047

patternUniform excitation and timeSeries

Hello, If I wanted to define the UniformExcitation using timeSeries so that I could get the absolute nodal acceleration directly using a recorder, can my commands look like the following? timeSeries Path $IDloadTag -dt $dt -filePath $outFile -factor $GMfact pattern UniformExcitation $IDloadTag $GMdi...
by arbarbosa
Thu Mar 10, 2011 4:20 pm
Forum: OpenSees.exe Users
Topic: Eigen analysis
Replies: 7
Views: 1957

Re: Eigen analysis

That makes perfect sense now. Thank you for that very clear response.
by arbarbosa
Thu Mar 10, 2011 1:08 pm
Forum: OpenSees.exe Users
Topic: Eigen analysis
Replies: 7
Views: 1957

Eigen analysis

Dear All,

I realize the eigenvalues are computed when we set the [eigen $numModes] command without using the analyze command. Is it also possible to output the eigenvectors without invoking the analyze command? If not, I would like to understand why not?

Thank you
by arbarbosa
Fri Mar 04, 2011 5:19 pm
Forum: OpenSees.exe Users
Topic: Section Recorder for dispBeamColumn
Replies: 7
Views: 3110

Re: Section Recorder for dispBeamColumn

Thank you. Have a good weekend.