Remennikov hysteresis rule

hi all,

I'm working with ruaumoko 3d and i'm modelling a steel structure wich has diagonal bracings and i used to model the Remennikov hysteresis rule but i have problems because I can not correctly enter the parameters.

2 FRAME
3 3 3 0 24 0 0 0 0 ! Frame parameters (pinned and hysteresis rule 24)
2.10E+07 8.16E+06 7.06E-04 2.12E-09 1.37E-06 4.10E-07 0 0 0 0 5.54E-03 ! Elastic parameters
0 0 0 0 0 0 0 0 ! Section end propierties
0.01 1 0 0 ! Ramberg Osgood Parameters
0.5 0.5 0.5 0.5 ! hinge lengths
! Nominal Strengths (problem)
4.10E-07 1.31E-05 1 1 1.4 0 1 1 1 1 0 1 ! Remennikov rule
someone knows how can enter correctly the nominal strengths parameters.
or theres is another rule for modelling this elements, becaus i want to do a pushover analysis.

If anyone can help
thanks
P.S. SI units (Tons, meters, g=9.81 m/s2)

Hi Luis,

I have been facing several problem while modeling braces with the Remennikov rule but this were related mainly with the old versions of Ruaumoko. Indeed, with the current version of Ruaumoko 2009 I get all my modeling to work correctly. Below you can see an example in the way I have defined my braces:

1 FRAME
1 0 0 0 24 0 0 0 ! Ring Diagrid W18x55
2.00E+08 7.69E+07 1.05E-02 6.909E-07 3.704E-04 1.869E-05 5.101E-03 4.554E-03 0 0 0 ! E G A Jxx Izz(about z) Iyy Asz Asy Sy Sz Wgt
0 0 0 0 0 0 0 0 ! Section end properties
0 0 0 0 ! Bi-linear Factors
0 0 0 0 ! Member Hinge Legnths
3260 -2370 0 0 0 0 ! Steel BEAM-COLUMN Yield Torques and Interaction Parameters
115.75 -115.75 642.65 -642.65
1.57E-06 3.073E-05 1 1.1 1.1 0 0.008 0.35 0.8 0.9 !REMENNIKOV Steel Brace Member Hysteresis


Let me know if this works for you as well,

Ciao

Alberto

ciao alberto
Grazie mille per la informazione. Lavoro con la versione 2009 di Ruaumoko.
vado subito a provare il modelo con la informazione che mi hai detto.
Ti faccio sapere che cosa succede.
Si ho dei dubbi ti scrivo.

grazie per la informazione di nuovo
ciaio