The OpenSees Community

Hi
I use "fiber" command.
Does "fiber" command consider shear and torsion or i must use "section aggregator" once for shear and other one for torsion???
thanks alot

Hi
I use concrete03 for my model but i don't know value of parameters' s this command??
I know just value of Fc (compressive strength).
Do you have papers, report or code that have other parameters' s this command??
thanks a lot.

Can you send for me one example with explain ????
Thank you

I know that how rotate the model by rotate axes but how can I rotate the records???? which one command??

Hello every body
I model a bridge and do analyze of time history.
I have got a question about direction of records apply(apply angle).
I want that records apply in angles of 5 and 10 and 20 and 30 degree to my model.
How can I apply direction of records? which one command??

hello every body.
I have got a question about transverse reinforcement .
Opensees can model a section with longitudinal reinforcement but I want to know that how can I model transverse reinforcement?
thanks.

Hello every body I use of OpenSees2.4.5-x64.exe and tcl/tk x64 8.5.16 for modeling. But program has a error. Error is in under commands: proc Period_Ferequency 12 proc Period_Ferequency {Nmode} { ; set pi 3.141592654 ; set Landa [eigen $Nmode] ;(maybe erorr is in this line)??????????????????????????...

Thank you Mr aschellenberg I model a bridge and bearing with " flat slider bearing" command in opensees(3D). I do time history analyze for 3direction earthquake. Material's isolator is Teflon. I want use " Velocity and Normal Force Dependent Friction " command for friction model....

Hello every body
I download OpenSees2.4.5-x64.exe and tcl/tk x64 8.5.16 and setup Active.tcl but I cannot run my code in Tcl ?????????????

Hello every body I use of "frictionModel VelNormalFrcDep $frnTag $aSlow $nSlow $aFast $nFast $alpha0 $alpha1 $alpha2 $maxMuFact " command but not run in Tcl and when I use of other command for friction model software being run and hasnot problem????????? Why?????? This command is false????...

Hello everybody. I model a bridge and bearing with " flat slider bearing" command in opensees(3D). I want use " Velocity and Normal Force Dependent Friction " command for friction model. μSlow = aSlow*N^(nSlow-1) μFast = aFast*N^(nFast-1) μ = μFast - (μFast-μSlow )*exp(-a*udot) a...

MULTIMODE SPECTRAL ANALYSIS METHOD

Hello every body I have problem for display mode shape. I model bridge with "Flat slider" in opensees. I want to see mode shape. 1-I can not see mode shape in "OSP"(maybe cause to "Flat slider" command).why? 2-I use recorder node for save shape mode but I change initial...

Hello every body
Do every body have under article?
I can not find

Analytical Modeling of a Reinforced Concrete Bridge Assembly Using Opensees
Ross Cussen

Please,help me!!!!!!!

My email adress:a.moayedi@iiees.ac.ir

Hello every body
I want a model very simple for verification of my bridge.
Do you have a model of a frame or a model of a simple bridge that has all of property of model????
My email : engn.omran@gmail.com