The OpenSees Community

Dear Vesna, I have a problem with modeling a nonlinear spring with Modified-Takeda hystersis rule. In this regard, I have modeled the spring using zerolength element . Unfortunately, as far as I know !!, existing hysteretic uniaxial material in OpenSees does not consistent with Modified-Takeda hyste...

thank you so much Vesna

Dear Vesna In conjunction with seismic evaluation of a 3D reinforced concrete structure using nonlinear time history analysis, is it possible to excite the structure in a special direction other than the global directions (1,2,.) ? On the other hand I want to apply the records in a direction which m...

Thank you Vesna I modeled it in opensees using linearBeamColumn element, lumped mass in C.M including Translational and rotational, In the same way I modeled it by Etabs2000 accurately. Opensees modal analysis result : T(1)=0.93584601404567---------Second. T(2)=0.8495619882890081---------Second. T(3...

Dear Vesna Thank you so much for your attention Regarding your question, I think you misunderstand my means, I didnt use both element simultaneously in my own models, you know, I have modeled it two times in different models. One time using LinearBeamColumn and another time using NonlinearBeamColumn...

Dear Silvia I have modeled a 3D reinforced concrete multistory generic frame using linearBeamColumn and NonlinearBeamColumn element, Lumped masses including translational and rotational in center of mass as following, I tried to verify the model using Etabs2000 or Sap2000 and finally I found that my...