Design Response Spectrum
Design Response Spectrum
(OP)
Can someone explain to me on how to use the design response spectrum curve? I developed the curve base on acceleration values that I determined for T0, Ts, 1, and TL periods. I also calculated approximate fundamental period of 2 story building frame. I am not sure what I need to compare next.






RE: Design Response Spectrum
RE: Design Response Spectrum
I`ve interpreted your question a bit differently from Mike. It sounds to me as though your next steps would be:
1) Enter your response spectrum graph with your building period and exit with a design acceleration.
2) Plug your design acceleration into the ASCE 7 to work out the base shear.
3) Distribute your forces to the various masses using ASCE 7 equations.
4) Start designing stuff.
Let us know if you need more detail.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Design Response Spectrum
RE: Design Response Spectrum
If there is something about the site that causes large accelerations at a particular natural period (think Mexico City) then the response spectrum plot would have that "resonance" built into it.
RE: Design Response Spectrum
Like Josh says, it`s baked in the cake. The fact that your acceleration will be higher (or sometimes lower) than the ground acceleration accounts for resonance.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Design Response Spectrum
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Design Response Spectrum