Dear 88FeNIX,
#01 About R=Response modification factor
I read it in a lecturer notes of a university from USA
I think R=over strength factor ( UBC 1997 ) & R=Response modification factor ( IBC ), it just different in "term", plz give correction if I'm wrong
My country seismic design code partially adopted from UBC 1997, simply, my country seismic design code = modified UBC 1997
#02 About R from pushover
I did pushover analysis based on FEMA 273 to get "R".
Yes you are perfectly right, R from pushover between 4 & 5 ... I found the same.
I want to know :
- Does your professor/lecturer accept/agree with the result of your research ( R pushover between 4 & 5 with R theory =8.5 ) ?
- Does your professor/lecturer give some comment/explanation/suggestion related to the value of R between 4 & 5 ?
#03 About Bilinear curve
I need your help/suggestion
In process to get R, we need to create "bilinear curve"
The problem raise, the condition is not the same as describe in FEMA 273
I think the condition I found ---> Ki = Ke, the curve of base shear vs roof displ is look very simple
I create the bilinear, both line meet & get Vy plus roof displ
- Do you think my procedure correct ?
- plz guide me to get Ki, Ke & alpha ... I never found such condition ( Ki different with Ke )
Thanks for your time & your help
I really appreciate your effort to help me.
Regards
Paladin
#01 About R=Response modification factor
I read it in a lecturer notes of a university from USA
I think R=over strength factor ( UBC 1997 ) & R=Response modification factor ( IBC ), it just different in "term", plz give correction if I'm wrong
My country seismic design code partially adopted from UBC 1997, simply, my country seismic design code = modified UBC 1997
#02 About R from pushover
I did pushover analysis based on FEMA 273 to get "R".
Yes you are perfectly right, R from pushover between 4 & 5 ... I found the same.
I want to know :
- Does your professor/lecturer accept/agree with the result of your research ( R pushover between 4 & 5 with R theory =8.5 ) ?
- Does your professor/lecturer give some comment/explanation/suggestion related to the value of R between 4 & 5 ?
#03 About Bilinear curve
I need your help/suggestion
In process to get R, we need to create "bilinear curve"
The problem raise, the condition is not the same as describe in FEMA 273
I think the condition I found ---> Ki = Ke, the curve of base shear vs roof displ is look very simple
I create the bilinear, both line meet & get Vy plus roof displ
- Do you think my procedure correct ?
- plz guide me to get Ki, Ke & alpha ... I never found such condition ( Ki different with Ke )
Thanks for your time & your help
I really appreciate your effort to help me.
Regards
Paladin