period estimation ( how to do in time history analysis)
period estimation ( how to do in time history analysis)
(OP)
Hi dear zaher, jae
I appreciate your discussion about period estimation. I think that you have to modify the analysis based period regarding nonstructural effects. This will affect design forces directly.
Ok! but for design of structures with energy dissipator devices, like friction dampers or viscous ones you have to apply nonlinear time-history analysis, then how can we consider the period shortening that we need to model the actual seismic effect on the structure?
I have a 6 story structure with sort of friction based bracing. The period I found is very long (around 2.0 sec) and nonlinear time history (with sap2000) analysis gives reduced result according to the structure's period. What do you think?
I appreciate your discussion about period estimation. I think that you have to modify the analysis based period regarding nonstructural effects. This will affect design forces directly.
Ok! but for design of structures with energy dissipator devices, like friction dampers or viscous ones you have to apply nonlinear time-history analysis, then how can we consider the period shortening that we need to model the actual seismic effect on the structure?
I have a 6 story structure with sort of friction based bracing. The period I found is very long (around 2.0 sec) and nonlinear time history (with sap2000) analysis gives reduced result according to the structure's period. What do you think?





RE: period estimation ( how to do in time history analysis)
You may have already accomplished this, but it was unclear in your post.
RE: period estimation ( how to do in time history analysis)
the device i am trying to use is somewhat new and designed by myself and no company exists to help me.
RE: period estimation ( how to do in time history analysis)
For more information on what is required now, by the industry, check out FHWA's HiTech study on seismic isolation bearings. www.fhwa.gov
RE: period estimation ( how to do in time history analysis)
RE: period estimation ( how to do in time history analysis)