Search found 18 matches

by farshid2010
Thu Jan 09, 2014 4:20 am
Forum: OpenSees.exe Users
Topic: Stop analysis after occurrence of fatigue
Replies: 0
Views: 1231

Stop analysis after occurrence of fatigue

Hi i am performing nonlinear TH analysis.
I want to stop the analysis after occurrence of fatigue to save time and reduce time of analysis. I get this message after the moment which fatigue occurs:
FatigueMaterial: material tag 3 failed at pseudo peak


Sincerely Yours
Farshid Nouri
by farshid2010
Sat Dec 07, 2013 5:45 am
Forum: OpenSees.exe Users
Topic: Eigen Value recorder problem
Replies: 1
Views: 1679

Eigen Value recorder problem

Hi every one! I can get the eigen values of model easily by the following command: puts "eigen values at start of transient: [eigen $NStory]" It yields the Nstory eigen values. the problem is the values show great difference with the values obtained by the recorder command: recorder Node -...
by farshid2010
Sat Nov 30, 2013 1:32 am
Forum: OpenSees.exe Users
Topic: Eigen Value recorder problem
Replies: 1
Views: 1610

Re: Eigen Value recorder problem

any body?
by farshid2010
Thu Nov 28, 2013 7:34 am
Forum: OpenSees.exe Users
Topic: Eigen Value recorder problem
Replies: 1
Views: 1610

Eigen Value recorder problem

Hi every one! I can get the eigen values of model easily by the following command: puts "eigen values at start of transient: [eigen $NStory]" It yields the Nstory eigen values. the problem is the values show great difference with the values obtained by the recorder command: recorder Node -...
by farshid2010
Tue Oct 22, 2013 12:00 am
Forum: OpenSees.exe Users
Topic: Modal Analysis
Replies: 4
Views: 3080

Re: Modal Analysis

Dear Frank I did this: set numModes [expr $NStory] for { set k 1 } { $k <= $numModes } { incr k } { recorder Node -file mode.out -nodeRange 10 [expr ($NStory+1)*10+$NBay+1] -dof 1 2 3 "eigen $k" } Actually i have tried to save all the modes in one file after this i realized there is nothin...
by farshid2010
Mon Oct 21, 2013 11:17 pm
Forum: OpenSees.exe Users
Topic: Modal Analysis
Replies: 4
Views: 3080

Re: Modal Analysis

fmk wrote: > get rid of the modes/ or make sure that a directory exsists and give the > correct location to it (depends if rnning on linux or windows) .. actually, > start with just removing modes and then add the location back in once you > sort out your directory structure. Thanks, you mean there ...
by farshid2010
Mon Oct 21, 2013 12:16 am
Forum: OpenSees.exe Users
Topic: Modal Analysis
Replies: 4
Views: 3080

Modal Analysis

Hi, I have faced some serious problems in my modal analysis as following: Error: couldn't open modes/Periods.txt no such file or directory while executing 'open $w period' my code consists of a tall building: Thanks in advance for the help. wipe model BasicBuilder -ndm 2 -ndf 3 source Wsection.tcl s...
by farshid2010
Sat Apr 06, 2013 7:47 am
Forum: OpenSees.exe Users
Topic: Fiber Section Properties
Replies: 1
Views: 1963

Fiber Section Properties

hi is there anyway that i can check my section properties in order to make sure my section is ok? my script for double channel section is : proc DoubleChannelSection {secID matID d bf tf tw ax nfdw nftw nfbf nftf} { # ################################################################### # DoubleChanne...
by farshid2010
Mon Mar 18, 2013 1:08 am
Forum: OpenSees.exe Users
Topic: Material for semi rigid connections
Replies: 1
Views: 1486

Material for semi rigid connections

Hello!
I am running a linear analysis, what i am worried about is i havent found any material which provides moment - rotation diagram and the material should be consistent with semi rigid connections, i would be pleased if any one could help.
thanks!
by farshid2010
Fri Mar 15, 2013 10:28 am
Forum: OpenSees.exe Users
Topic: Problem in Understanding Script
Replies: 3
Views: 2920

Re: Problem in Understanding Script

thanks alot is there a command for obtaining iFpush in # create node and load vectors for lateral-load distribution in static analysis set iFPush "" set iNodePush "" for {set level 2} {$level <=[expr $NStory+1]} {incr level 1} { set FPush [lindex $iFj [expr $level-1-1]]; # latera...
by farshid2010
Mon Mar 11, 2013 7:27 am
Forum: OpenSees.exe Users
Topic: Problem in Understanding Script
Replies: 3
Views: 2920

Problem in Understanding Script

Hi! I have downloaded the script from berkeleys website this code is about analyzing n bay n story steel structure what i am wondering about is the lines which are about calculating lateral load it seems that these scripts are developed only for the calculation of lateral loads and these loads are n...
by farshid2010
Fri Feb 22, 2013 1:30 am
Forum: OpenSees.exe Users
Topic: Semi Rigid Connections
Replies: 2
Views: 2607

Semi Rigid Connections

Hi!
I would like to know whether it is possible to model semi rigid connections or not?
If so, is the "spring2dmodelKModel" good choice?
And when we are performing a linear analysis is this a wise choice?
Thanks !
by farshid2010
Sun Dec 02, 2012 4:53 am
Forum: OpenSees.exe Users
Topic: Design Structural elements
Replies: 1
Views: 1549

Design Structural elements

Hi! I am optimizing a high rise steel structure with outriggers using GA. now the main problem is designing of structure elements like outriggers and beams and columns. as long as there is no design process in opensees and i am linking matlab to opensees for the optimization process i would like to ...
by farshid2010
Mon Oct 08, 2012 2:05 am
Forum: OpenSees.exe Users
Topic: High Rise Structures
Replies: 7
Views: 4197

Re: High Rise Structures

Hello! As I said before i was looking forward to optimizing of high-rise structures using opensees and ofcourse the optimizing process using GA (algorithm) requires MAtlab too. so the problem is linking these too, and I would like to know the opensees will confirm the programing codes of MATLAB or n...
by farshid2010
Wed Aug 08, 2012 10:58 am
Forum: OpenSees.exe Users
Topic: High Rise Structures
Replies: 7
Views: 4197

Re: High Rise Structures

Thanks a lot. I will be waiting for your good news.