Search found 42 matches

by nicola27
Mon Mar 25, 2013 12:11 am
Forum: Documentation
Topic: Infill Wall Model and Element Removal
Replies: 1
Views: 1547

Infill Wall Model and Element Removal

With the element, Infill Wall Model and Element Removal, I can do the Pusch over a frame?
by nicola27
Wed Jan 23, 2013 2:23 pm
Forum: Documentation
Topic: Torsional effect
Replies: 2
Views: 1837

Torsional effect

my structure is concrete and I modeled the beams with BeamElementWithHinges. I have not included in the initial analysis of the torsional stiffness in the fiber section and the period was 0.8 [s]. After I inserted the torsion (Ubig) and my period is increased.
by nicola27
Sun Dec 16, 2012 12:38 am
Forum: Documentation
Topic: when I use the wipeAnalysis?
Replies: 2
Views: 2134

when I use the wipeAnalysis?

when I use the wipeAnalysis?
by nicola27
Sun Nov 25, 2012 3:36 am
Forum: Documentation
Topic: Stiffness
Replies: 2
Views: 1847

Stiffness

I want to understand the meaning of kinti - kcomm - kcurrent in dynamic analysis with rayleigh.
When I want to do an analysis without damping I put in all zeros, OpenSees which uses initial stiffness?
by nicola27
Sun Nov 25, 2012 3:31 am
Forum: OpenSees.exe Users
Topic: Stiffness
Replies: 1
Views: 447

Stiffness

I want to understand the meaning of kinti - kcomm - kcurrent in dynamic analysis with rayleigh.
When I want to do an analysis without damping I put in all zeros, OpenSees which uses initial stiffness?
by nicola27
Wed Nov 21, 2012 1:42 am
Forum: OpenSees.exe Users
Topic: Concrete01
Replies: 1
Views: 499

Concrete01

The concrete compressive strnght at 28 days is cubic or cylindrical?
by nicola27
Wed Nov 21, 2012 12:48 am
Forum: OpenSees.exe Users
Topic: Stiffness
Replies: 1
Views: 452

Stiffness

Which uses opensee stiffness in non-linear analysis of non-linear elements?
Which is the parameter to vary the stiffness?
by nicola27
Thu Nov 15, 2012 11:00 pm
Forum: OpenSees.exe Users
Topic: Accelerogram
Replies: 1
Views: 430

Accelerogram

When I register my accelerogram in the file. AT2, can I write it in a single column?
by nicola27
Thu Nov 15, 2012 3:24 am
Forum: OpenSees.exe Users
Topic: reinforced concrete frame
Replies: 1
Views: 495

reinforced concrete frame

I made my reinforced concrete frame with two spans two floors and stuck to the base. I want to set up the diaphragms stiff and I used the dof equal in x direction as follows, equalDOF 21 22 1; equalDOF 21 23 1; equalDOF 31 32 1; equalDOF 31 33 1; equalDOF 41 42 1; equalDOF 41 43 1. I applied the mas...
by nicola27
Wed Nov 14, 2012 5:59 am
Forum: OpenSees.exe Users
Topic: Periods
Replies: 0
Views: 380

Periods

I'm doing a nonlinear analysis with accelleregramma of a reinforced concrete frame. I used non-linear elements and sections in fiber concrete01 and steel02. When I calculate the proportional damping, calculation periods and frequencies. The time that I find myself using the nonlinear elements is dif...
by nicola27
Sat Nov 10, 2012 2:49 am
Forum: OpenSees.exe Users
Topic: help
Replies: 6
Views: 1662

Re: help

how to make a rigid diaphragm in a frame 2d?
by nicola27
Sat Nov 10, 2012 2:13 am
Forum: OpenSees.exe Users
Topic: help
Replies: 6
Views: 1662

Re: help

When I do the Eigen analysis, I have to use equaldof in direction 2 3?
by nicola27
Sat Nov 10, 2012 2:09 am
Forum: OpenSees.exe Users
Topic: help
Replies: 6
Views: 1662

Re: help

Thanks vesna I think I have solved this problem, because I used the dof equal in the x direction. Now I want to ask you: I am doing a dynamic analysis of a reinforced concrete frame. When I calculate the period of my structure with elastic elements, I have a period of 0.54 s. when I calculate the pe...
by nicola27
Thu Nov 08, 2012 3:40 am
Forum: OpenSees.exe Users
Topic: help
Replies: 6
Views: 1662

help

I have made a dynamic analysis of a reinforced concrete frame and my analysis has failed. The error is: Arpacksolver: Error with saupd info= -9999 Could not build an Arnoldi factorization. IPARM(5) the size of check thatenoughkspace and array storage has been allocated. Warning DirectIntegrationAnal...