Buckling-Restrained Braces ( BRB ) Modelling

02-Getting started with the modelling
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Mina Rizkalla
Posts: 3
Joined: 27 Jul 2019, 16:18

Buckling-Restrained Braces ( BRB ) Modelling

Post by Mina Rizkalla »

Dear All
can anyone help me model BRB (Buckling-Restrained Braces) please in SeismoStruct ?

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z.gronti
Posts: 542
Joined: 16 Oct 2013, 08:14

Re: Buckling-Restrained Braces ( BRB ) Modelling

Post by z.gronti »

Dear Mina Rizkalla,

Please carry out a search on this forum for the term "buckling restrained".
Zoi Gronti
Seismosoft Srl.

Mina Rizkalla
Posts: 3
Joined: 27 Jul 2019, 16:18

Re: Buckling-Restrained Braces ( BRB ) Modelling

Post by Mina Rizkalla »

Dear Zoi Gronti
I modeled the BRB use truss element class and the cross section is CSS (Circular solid Section)
is that a correct way for the BRB modelling ?

Also what is the best Stress-Strain curve that best fits the steel material for the BRB ?

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seismosoft
Posts: 781
Joined: 06 Jul 2007, 04:55

Re: Buckling-Restrained Braces ( BRB ) Modelling

Post by seismosoft »

Yes, provided that you have pinned joints at the braces ends.
Note also that, apart from the standards steel mterials, there is a special buckling restrained steel brace model stl_brb.
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roshen.rj
Posts: 12
Joined: 10 Feb 2020, 07:57

Re: Buckling-Restrained Braces ( BRB ) Modelling

Post by roshen.rj »

seismosoft wrote:
04 May 2020, 15:46
Yes, provided that you have pinned joints at the braces ends.
Note also that, apart from the standards steel mterials, there is a special buckling restrained steel brace model stl_brb.
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How do I know the 'material properties' that need to be defined to correspond to the Stress-Strain plot? Is there a sample key that I can use to follow?

Mina Rizkalla
Posts: 3
Joined: 27 Jul 2019, 16:18

Re: Buckling-Restrained Braces ( BRB ) Modelling

Post by Mina Rizkalla »

How can I make sure that I have modeled (simulated) a correct BRB model element in SeismoStruct ?

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seismosoft
Posts: 781
Joined: 06 Jul 2007, 04:55

Re: Buckling-Restrained Braces ( BRB ) Modelling

Post by seismosoft »

In general, by checking its response in the post-processor. However, a sample disply plot is also provided in the Materials dialog box.
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