Question about Modelling of ADAS damper

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zareian1
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Question about Modelling of ADAS damper

Post by zareian1 » Fri Jun 17, 2011 4:59 pm

Can OpenSees model ADAS (Added Damping and Stiffness) damper which is the subcategory of metallic yield dampers and if it can how?

fmk
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Re: Question about Modelling of ADAS damper

Post by fmk » Sun Jun 19, 2011 1:11 am

yes .. look at this paper to see how .. it's just a zeroLength element with the correct material.

www.14wcee.org/Proceedings/files/S25-003.PDF

susan
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Re: Question about Modelling of ADAS damper

Post by susan » Fri Jan 17, 2014 3:26 am

Dear fmk,

The paper which you referred does not download. would you please write the title of paper and its authors?

fmk
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Re: Question about Modelling of ADAS damper

Post by fmk » Tue Jan 21, 2014 9:29 am

Behavior and Performance of Structures Equipped With ADAS & TADAS Dampers (a Comparison with Conventional Structures)
Seyed Masoud Sajjadi Alehashem, Ali Keyhani and Hassan Pourmohammad

another link to it:
http://www.iitk.ac.in/nicee/wcee/article/14_S25-003.PDF

and here is another one in which they use OpenSees:
Evaluating response modifi cation factors of TADAS frames
Mussa Mahmoudi and Mohammad Ghasem Abdi

article 17 in
http://www.sciencedirect.com/science/jo ... 143974X/71

krmzgn
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Re: Question about Modelling of ADAS damper

Post by krmzgn » Thu Jan 30, 2014 3:46 am

great work...

teruna
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Re: Question about Modelling of ADAS damper

Post by teruna » Fri Nov 07, 2014 7:06 pm

Dear fmk, any user

I am new beginner in opensees. I would like to simulate steel damper as zero length element with bilinear force-deformation relationship ( i.e. elastic stiffness, yield force or yield displacement, and post yield stiffness ratio). The input of loading is cyclic increasing displacement. My aim is to obtain hysteresis loop of the damper. I read from opensees getting started about integrator displacement control under cyclic load, and i am confused why we still need to define the load value? In fact, We can get the load or reaction for any given displacement. Would you to guide me to solve this problem?

Regards
Teruna

auneng
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Re: Question about Modelling of ADAS damper

Post by auneng » Thu Nov 13, 2014 12:54 am

thanks alot, fmk
i really want to know about it

Slinven
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Re: Question about Modelling of ADAS damper

Post by Slinven » Mon Nov 09, 2015 12:56 am

Behavior and Performance of Structures Equipped With ADAS & TADAS Dampers (a Comparison with Conventional Structures)
Seyed Masoud Sajjadi Alehashem, Ali Keyhani and Hassan Pourmohammad
you can refer to the below:

http://www.iitk.ac.in/nicee/wcee/article/14_S25-003.PDF

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