Search found 66 matches

by javidsharifi
Sat Jun 11, 2016 1:40 pm
Forum: OpenSees.exe Users
Topic: brace figure optimization
Replies: 0
Views: 637

brace figure optimization

Dear all, I am going to model a steel frame for optimization analysis of its braces. For this purpose, I shall firstly fill the supposedly braced bays with plane elements and then run the structure. Then, each time I run the analysis, based on some criteria, some elements will be eliminated until wh...
by javidsharifi
Tue Mar 29, 2016 10:15 am
Forum: OpenSees.exe Users
Topic: Stahll Profiles
Replies: 0
Views: 432

Stahll Profiles

Dear all,

Is there a subroutine already prepared including Stahll profiles for the sake of analysis of steel members and frames? How can I have access to it if any?

Thanks a bunch,
Behtash
by javidsharifi
Fri Dec 26, 2014 10:49 am
Forum: OpenSees.exe Users
Topic: BuildingTcl 1.9 Has been released!!!
Replies: 110
Views: 83125

Re: BuildingTcl 1.9 Has been released!!!

Dear Dr. Mazzoni,
How can I download, launch and use Buildong Tcl? I tried to, but I couldn't! Is there a special way for it?
My best regards,
B. JavidSharifi
SUTech
by javidsharifi
Sat Dec 20, 2014 6:38 am
Forum: OpenSees.exe Users
Topic: Plastic hinges
Replies: 6
Views: 1219

Re: Plastic hinges

I meant OpenSees seemingly does not specify or give a hint about the probable location of plastic hinges and I'll need to figure it out manually. I was trying to ask for confirmation! Also, I believe I have seen a command like plastic rotation somewhere in codes I have already inspected. But I cant ...
by javidsharifi
Thu Dec 18, 2014 4:05 am
Forum: OpenSees.exe Users
Topic: Plastic hinges
Replies: 6
Views: 1219

Re: Plastic hinges

Thank you. so the model I have prepared with nonlinearBeamColumn is probably suitably working. I shall check rotation at critical points manually chosen (middle and end points), is it right?
by javidsharifi
Tue Dec 16, 2014 10:04 am
Forum: OpenSees.exe Users
Topic: Wg in ShallowFoundationGen
Replies: 12
Views: 2523

Re: Wg in ShallowFoundationGen

Couldn't you plant the UCD elements directly under base nodes and tie the horizontal movement of all base nodes to a totally fixed one? Then I suppose you may have to model the properties of the soil under each node specifically based on characteristics there (in case at hand) in order to account fo...
by javidsharifi
Sat Dec 13, 2014 1:28 am
Forum: OpenSees.exe Users
Topic: Plastic hinges
Replies: 6
Views: 1219

Re: Plastic hinges

Thank you very much. so I should first know the rotation corresponding to yield values, and then record the rotation after analysis and compare them with those values. I want to check this for all beams and columns. Which element types are the most suitable for doing so? BeamWithHinges? Or nonlinear...
by javidsharifi
Fri Dec 12, 2014 2:29 pm
Forum: OpenSees.exe Users
Topic: Plastic hinges
Replies: 6
Views: 1219

Plastic hinges

Dear all,
What is the fastest way to find out plastic hinges formed in the structure after a dynamic or pushover analysis?
Regards,
B. JavidSharifi
by javidsharifi
Thu Dec 11, 2014 6:05 am
Forum: OpenSees.exe Users
Topic: Wg in ShallowFoundationGen
Replies: 12
Views: 2523

Re: Wg in ShallowFoundationGen

I believe it'll be OK, but pointless! The ShallowFoundationGen command does it exactly the same as you may need to. It also takes into account the zerolength elements wherever needed, as well as setting the distances of elements logically. Have you had a look at the subroutine created after this lin...
by javidsharifi
Mon Dec 08, 2014 12:54 pm
Forum: OpenSees.exe Users
Topic: internal hinge (moment free)
Replies: 9
Views: 1841

Re: internal hinge (moment free)

I meant so too. I just couldn't have gotten truss elements to work so far. but I finally will!
Thanks for the script,
All the best
Behtash;
SUTech
by javidsharifi
Mon Dec 08, 2014 11:48 am
Forum: OpenSees.exe Users
Topic: internal hinge (moment free)
Replies: 9
Views: 1841

Re: internal hinge (moment free)

Seems there was sth wrong with truss elements! I did it with elasticbeamcolumn and nonlinearbemacolumn and worked!
by javidsharifi
Mon Dec 08, 2014 11:31 am
Forum: OpenSees.exe Users
Topic: internal hinge (moment free)
Replies: 9
Views: 1841

Re: internal hinge (moment free)

It is a simple model! just a small truss. I double checked the supports. What may it be?! Seems something goes wrong with the linear algebra package. But I just cant get what is wrong!
by javidsharifi
Mon Dec 08, 2014 10:09 am
Forum: OpenSees.exe Users
Topic: internal hinge (moment free)
Replies: 9
Views: 1841

Re: internal hinge (moment free)

Dear Ameri, I corrected the commands as explained in the conversations. But a problem still persists. The analysis fails at the very first step. The error appearing is this: WARNING BandGeneralLapackSolver: : solve() -LAPACK routine returned 2 WARNING ModifiedNewton : : solveCurrentStep() -the Linea...
by javidsharifi
Mon Dec 08, 2014 9:31 am
Forum: OpenSees.exe Users
Topic: internal hinge (moment free)
Replies: 9
Views: 1841

Re: internal hinge (moment free)

Thank u so much. I found the answer in topics u sent.
Best regards,
Behtash
by javidsharifi
Mon Dec 08, 2014 4:14 am
Forum: OpenSees.exe Users
Topic: internal hinge (moment free)
Replies: 9
Views: 1841

Re: internal hinge (moment free)

For a truss this:

element truss $eleTag $iNode $jNode $A $matTag <-rho $rho> <-cMass $cFlag> <-doRayleigh $rFlag>

is used. But still for a hinge among rigid connections e.g. in a frame I am wondering what to do!