Viscous Damper
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- Posts: 1
- Joined: 15 Mar 2012, 00:58
Viscous Damper
Dear Sir/Madam
I'm very fresh in Seismostruct. I have tried to have a comparison between structures with and without damper in this software. Based on my studying (help of the software and searching on net) I'm sure that it can analyse a structure with viscous damper. The problem here is that I cannot model this damper.
Previously, I worked with SAP2000;it's easy there. Just enough to define a damper and assign it into your element.
May you please help me that how can I define and model viscous damper in RC frame structures(step by step please)?
Thanks a lot
I'm very fresh in Seismostruct. I have tried to have a comparison between structures with and without damper in this software. Based on my studying (help of the software and searching on net) I'm sure that it can analyse a structure with viscous damper. The problem here is that I cannot model this damper.
Previously, I worked with SAP2000;it's easy there. Just enough to define a damper and assign it into your element.
May you please help me that how can I define and model viscous damper in RC frame structures(step by step please)?
Thanks a lot
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- Posts: 89
- Joined: 17 Jul 2011, 20:08
Re: Viscous Damper
In SeismoStruct, you can add damping in a model with one of the following ways:
1) Adding damping to the entire structure from the Project Settings, tab Damping
2) Adding damping to specific element classes (Damping button in the element classes module)
3) Adding a viscous damping element. Define the class and add the element in the element connectivity module
1) Adding damping to the entire structure from the Project Settings, tab Damping
2) Adding damping to specific element classes (Damping button in the element classes module)
3) Adding a viscous damping element. Define the class and add the element in the element connectivity module
- seismosoft
- Posts: 1193
- Joined: 06 Jul 2007, 04:55
Re: Viscous Damper
Dear irajtoloue,
The viscous damper element in SeismoStruct is a single-node element adequate for modelling of a linear dashpot fixed to the ground.
As discussed in the Help System (Element Classes -> Damping Element), in particular in the Notes at the bottom of the page, you should use 'Link' elements (with an appropriate response curve, e.g. 'bl_kin' for steel hysteretic dampers) to model non ground-fixed dampers.
Seismosoft Support
The viscous damper element in SeismoStruct is a single-node element adequate for modelling of a linear dashpot fixed to the ground.
As discussed in the Help System (Element Classes -> Damping Element), in particular in the Notes at the bottom of the page, you should use 'Link' elements (with an appropriate response curve, e.g. 'bl_kin' for steel hysteretic dampers) to model non ground-fixed dampers.
Seismosoft Support
Re: Viscous Damper
Dear team
How can I modelling visco elastic damper in seismostruct?
please help me.
yours sincerely
How can I modelling visco elastic damper in seismostruct?
please help me.
yours sincerely
- seismosoft
- Posts: 1193
- Joined: 06 Jul 2007, 04:55
Re: Viscous Damper
Either using the dashpt element type or with a link element with an appropriate hysteretic curve.
Seismosoft Support
Seismosoft Support
Re: Viscous Damper
thank you.
Which hysteric curve should I use?
Which hysteric curve should I use?
- seismosoft
- Posts: 1193
- Joined: 06 Jul 2007, 04:55
Re: Viscous Damper
We cannot recommend a specific curve, This is something you should discuss with your supervisor.
Seismosoft Support
Seismosoft Support
Re: Viscous Damper
Isn't it a special and costant curve for viscoelastic dampers?
Re: Viscous Damper
Farid
it can be various hysteretic responses according to the damper's characteristics. in order to model such dampers, i recommend using ''bl_kin'' as i used according to the result of static test which I've done in the Lab. for instance I obtained Qy=130 kN and Dy=5 mm.
Baha
it can be various hysteretic responses according to the damper's characteristics. in order to model such dampers, i recommend using ''bl_kin'' as i used according to the result of static test which I've done in the Lab. for instance I obtained Qy=130 kN and Dy=5 mm.
Baha
- seismosoft
- Posts: 1193
- Joined: 06 Jul 2007, 04:55
Re: Viscous Damper
Thanks for the contribution Bahawise!