When do we need to modifying the Stiffness
- Konbuyu başlatan ammer
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Hakan Şahin
Administrator
Re: When do we need to modifying the Stiffness?
Hi Ammer,
You don't need to change stiffness of those you mentioned. Program finds beam-beam, beam-column connections automaticly and make them ready to analysis. You may see 6 end forces for each end of beam and columns, which is total 12.
Also, there is an option for torsion effect for beam-beam connection on Beam Parametres related to TS500. Make sure it's not checked as well to apply torsion effect on beam-beam connections.
Hi Ammer,
You don't need to change stiffness of those you mentioned. Program finds beam-beam, beam-column connections automaticly and make them ready to analysis. You may see 6 end forces for each end of beam and columns, which is total 12.
Also, there is an option for torsion effect for beam-beam connection on Beam Parametres related to TS500. Make sure it's not checked as well to apply torsion effect on beam-beam connections.
Ekli dosyalar
Hakan Şahin
Administrator
Re: When do we need to modifying the Stiffness?
Height of cantilever beams in your project is 1.60 meter. Sudden deflection of B2 beam is 4.42 mm, long related deflection 8.19 mm and total deflection is 14.1 mm. I don't see problem on these values
TS500 gives reduction condition of moment of inertia of the beams related to left and right moments and program checks this condition and applies. If you don't want to consider TS500 conditions, you may change stiffness modification for vertical loads as amount of you wish to.
Height of cantilever beams in your project is 1.60 meter. Sudden deflection of B2 beam is 4.42 mm, long related deflection 8.19 mm and total deflection is 14.1 mm. I don't see problem on these values
TS500 gives reduction condition of moment of inertia of the beams related to left and right moments and program checks this condition and applies. If you don't want to consider TS500 conditions, you may change stiffness modification for vertical loads as amount of you wish to.
Hakan Şahin
Administrator
Re: When do we need to modifying the Stiffness?
Hi Ammer,
unfortunately there is no english version of TS500
Mmax=Maksimum moment along span
Mrc=2.5*fctd* Ic/y
Ic =moment of inertia of section
y= neutral axis of section
Along span of beam:
if Mmax<=Mcr moment, section not cracked-> uses inertia is full of section.
if Mmax>=Mrc moment of inertia is given as(section cracked -> uses effective moment of inertia Ief
Also new seicmic code(TBDY 2018) gives us reduce value of sections and program applies automaticly if we use seicmic code(TBDY 2018)
Hi Ammer,
unfortunately there is no english version of TS500
Mmax=Maksimum moment along span
Mrc=2.5*fctd* Ic/y
Ic =moment of inertia of section
y= neutral axis of section
Along span of beam:
if Mmax<=Mcr moment, section not cracked-> uses inertia is full of section.
if Mmax>=Mrc moment of inertia is given as(section cracked -> uses effective moment of inertia Ief
Also new seicmic code(TBDY 2018) gives us reduce value of sections and program applies automaticly if we use seicmic code(TBDY 2018)
