Sahar Ebrahimi

7 Questions 9 Answers 0 Followers

Questions related from Sahar Ebrahimi

Can we use PSDM in combination with IDA for fragility assessment?

I'm a little confused...I want to know if we can use PSDM (I mean linear regression between IM & EDP) with IDA data or just it is suitable for unscaled records analysis. If we can use it for IDA,...

02 April 2023 312 2 View

How the low damping elastomeric bearing is usually modeled in OpenSees? I mean with which element or material?

I used KikuchiAikenLRB, BoucWen, and Hystereticpoly materials for simulating the shear behavior of the isolator. Also, I used LeadRubberX and ElastomericX elements, but unfortunately, I didn't get...

24 October 2022 9,078 0 View

Could anyone help me Which parameters or commands in OpenSees are effective on the non-linear behavior of the structure?

I have modeled a 6-story steel structure (3d) with a combination of base isolators and viscous damper in the base level in OpenSees which corresponds to a MCEER report so as to verify my modeling...

05 September 2022 8,674 0 View

What is a difference between a linear elastic and linear viscous element and also the meaning of Parasitic viscous damping?

Could anyone explain the difference between a linear elastic and linear viscous element? also the meaning of parasitic viscous damping in an isolation system that results in a reduction of...

02 July 2022 9,730 4 View

Is there any article related to resilience-cost optimization in structures using multi-objective algorithms?

For example, using NSGA-II or PSO to simultaneously optimize seismic resilience and the cost of a retrofitted or designed structure using different passive control devices.

18 November 2021 1,983 2 View

How can i obtain modal participation masses and Modal participation factors in OpenSees?

I modeled a 5 story three-dimensional steel structure in OpenSees. I want to get the modal participation masses and Modal participation factors and compare it with the Etabs model. I know that...

04 November 2021 1,813 7 View

What is the reason for the slight difference between periods in structural modeling in SAP and Opensees software?

I modeled a 5-story frame with 3 bays in these two softwares, and periods 1.15 and 1.09 sec were obtained in SAP and Opensees, respectively.(The period of the first mode of the structure)

28 May 2021 2,951 0 View