Pinned connection for infrmFB

02-Getting started with the modelling
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hitesh4894
Posts: 4
Joined: 13 Oct 2015, 10:11

Pinned connection for infrmFB

Post by hitesh4894 »

I am modelling a steel frame with bracing.The bracing will be made of two diffent materials. The bracing is infrmFB class element and I need to subdivide the bracing so that I can use different materials along the length, also the bracing need to be pinned at both the ends so that it doesnt takes any moment. I tried using inelastic truss element for moment free element but it cant be subdivided. I tried releasing moment in infrmFB but then it shows error during analysis. So, how can I make pinned connection for infrmFB ?
Behnam
Posts: 38
Joined: 06 Oct 2015, 13:49

Re: Pinned connection for infrmFB

Post by Behnam »

Dear hitesh4894
you have to define a link element for the releases.as you know links need 2 imposing nodes.one from the beam-col connection and one from the brace element.
Don't forget that the link axes no.1 should lay on the brace element.
then in defining the curve parameters for the link (lin_sym)consider a small value e.g. M2=.0001 for rotational degrees of freedom and large values for dis e.g F1=1e+10 .
hitesh4894
Posts: 4
Joined: 13 Oct 2015, 10:11

Re: Pinned connection for infrmFB

Post by hitesh4894 »

Thanks for your help Behnam.
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