Search found 26 matches

by hshoar
Thu Jan 30, 2014 10:25 am
Forum: OpenSees.exe Users
Topic: Recorders: Deformation
Replies: 2
Views: 1165

Re: Recorders: Deformation

Thank you very much Dr. for your quick and complete answer! and I still have that idea to collect these useful information! or at least put a button here to report a post as a useful answer!
thank you for your help.
by hshoar
Thu Jan 30, 2014 8:58 am
Forum: OpenSees.exe Users
Topic: Recorders: Deformation
Replies: 2
Views: 1165

Recorders: Deformation

Hello, I want to record the rotation of a beam at it's ends. I'm confused which recorder is right to use? and I would appreciate if anyone give some additional explanation about these recorders. When I use a recorde like this: recorder Element -file Beam-rotation68.out -time -ele 68 -section 1 plast...
by hshoar
Tue Jan 28, 2014 5:52 am
Forum: OpenSees.exe Users
Topic: concentrated plastic hinges-P-M interaction?
Replies: 1
Views: 896

Re: concentrated plastic hinges-P-M interaction?

Hi, I have asked this question before, and it may be useful for you too. here is the link to the post: http://opensees.berkeley.edu/community/viewtopic.php?f=2&t=60763 But I have a question from you! why do you want to model concentrated hinge?? one of the main advantages of OpenSees is modeling dis...
by hshoar
Thu Jan 23, 2014 12:15 am
Forum: OpenSees.exe Users
Topic: extra information about Corotational transformation
Replies: 3
Views: 953

extra information about Corotational transformation

Hello, can anyone explain a bit more about Corotational transformation? my main problem is about this sentence written in command manual: "Currently the transformation does not deal with element loads and will ignore any that are applied to the element". what exactly will happen according to this no...
by hshoar
Tue Jan 21, 2014 10:51 pm
Forum: OpenSees.exe Users
Topic: Uniform load problem
Replies: 1
Views: 647

Uniform load problem

Dear OpenSees experts! When I want to add a uniform load this error appears: expected integer but got "-type" . . . # define GRAVITY ------------------------------------------------------------- pattern Plain 1 Linear { eleLoad -ele 3 -type -beamUniform -500 } expected integer but got "-type" If I w...
by hshoar
Sun Jan 05, 2014 1:41 am
Forum: OpenSees.exe Users
Topic: Inclusion of Self Weight for analysis
Replies: 10
Views: 6910

Re: Inclusion of Self Weight for analysis

Dear fmk,
Could we use uniform beam loads to impose weight for vertical elements, like columns? or brace elements?
Thanks.
by hshoar
Sat Nov 16, 2013 6:57 am
Forum: OpenSees.exe Users
Topic: Modified Ibarra-Medina-Krawinkler Deterioration Model
Replies: 6
Views: 2506

Re: Modified Ibarra-Medina-Krawinkler Deterioration Model

Hi, Here is Dr. Mckenna's suggestion in analysis failure! : fmk: start by changing the elements to be elastic beam columns. if that fails your nodes, elements or boundary conditions are messed up. if it works change the section to be elastic for the nonlinear beam columns. if that fails check your b...
by hshoar
Tue Nov 05, 2013 8:36 am
Forum: OpenSees.exe Users
Topic: rigid diaphragm-nonlinear element-progressive collapse
Replies: 2
Views: 1239

Re: rigid diaphragm-nonlinear element-progressive collapse

its really sad not to get any response...conclusion: never post anything on off days!
by hshoar
Sun Nov 03, 2013 12:46 am
Forum: OpenSees.exe Users
Topic: rigid diaphragm-nonlinear element-progressive collapse
Replies: 2
Views: 1239

rigid diaphragm-nonlinear element-progressive collapse

Hello I am modeling a dual system steel structure (moment frame with concentric bracing) for progressive collapse analyses. I developed my model with these specifications: - It is a 2D model - 10 story - 3 bays - material : Uniaxial material steel01 + MinMax material - fiber sections - Beam With Hin...
by hshoar
Tue Oct 15, 2013 6:33 am
Forum: Useful Scripts.
Topic: We are collecting OPENSEES User-Requirements Data
Replies: 25
Views: 22662

Re: We are collecting OPENSEES User-Requirements Data

Hello I need some examples about following concepts: 1-Rayleigh Damping : how can we use Rayleigh damping in different situations. For example in progressive collapse analysis 2-considering PMM interaction in elements And it will very useful if you add more explanations to the manual or add some tip...
by hshoar
Thu Oct 10, 2013 1:42 am
Forum: Useful Scripts.
Topic: tcl procedure for creating a Box steel fiber section
Replies: 1
Views: 2723

tcl procedure for creating a Box steel fiber section

# boxSec.tcl: tcl procedure for creating a Box steel fiber section # written: Hamed Shoarian Sattari ### hshoar@yahoo.com # date: 10/2013 #--- #--- input parameters # secID = section ID number # matID = material ID number # h = box height (z direction) # w = box width (y direction) # t = thickness #...
by hshoar
Thu Sep 26, 2013 3:48 am
Forum: OpenSees.exe Users
Topic: Plastic hinge which considers P-M interaction
Replies: 9
Views: 4073

Re: Plastic hinge which considers P-M interaction

Thank you very much dear Prof. Scott for the new beamWithHinges is it right to use steel01 in fiber sections of both hinges and interior section of element? is steel 01 has cyclic degradation? I'm not sure using steel01 is the right material for progressive collapse, because I think I need to model ...
by hshoar
Wed Sep 25, 2013 11:12 am
Forum: OpenSees.exe Users
Topic: Plastic hinge which considers P-M interaction
Replies: 9
Views: 4073

Re: Plastic hinge which considers P-M interaction

The reason I've decided to use elasticBeamColumn with zerloength elemnts as hinges was that I can record the rotation of zerolength element and compare it with allowable values in GSA. How can I get the rotation of plastic hinges formed in a beamWithHinges? And I'm still have those questions about u...
by hshoar
Wed Sep 25, 2013 2:19 am
Forum: OpenSees.exe Users
Topic: Plastic hinge which considers P-M interaction
Replies: 9
Views: 4073

Re: Plastic hinge which considers P-M interaction

Dear Prof. Scot maybe I'm asking repetitive questions, but, its because I'm really confused:-?? I defined the column with elasticBeamColumn and zerlongth elemnts to demonstrate plastic behavior. A steel column with square hollow section which has two zerolength element at ends as concentrated plasti...
by hshoar
Mon Sep 23, 2013 11:38 am
Forum: OpenSees.exe Users
Topic: Plastic hinge which considers P-M interaction
Replies: 9
Views: 4073

Re: Plastic hinge which considers P-M interaction

Thank you Dear Prof. Scott
As you mentioned here and in my previous post, the yieldSurface sections are not documented. I took a look at source code but I couldn't use it.
Can you please explain me how can I use fiber o yieldsurface sections?
I appreciate your quick and informative replies.