3 Replies Latest reply on Sep 17, 2012 8:18 AM by Alessandro Tornincasa

Uniform Building Code (UBC) for seismic analysis input

Alessandro Tornincasa Sep 5, 2012 10:21 AM

Hi,

does anyone know wether the Uniform Building Code (UBC) provides psd data for acceleration or displacement for a certain seismic zone ?

Thanks,

Alex

Re: Uniform Building Code (UBC) for seismic analysis input

Anthony Botting Sep 5, 2012 11:36 AM (in response to Alessandro Tornincasa)

I do not believe they have published one. I ran into this issue in the past and could not locate one (you might be able to, however). I resorted to conducting a "Response Spectrum" analysis. It lets you input the acceleration or displacement frequency spectrum directly from the UBC charts. Hope that helps.
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- Re: Uniform Building Code (UBC) for seismic analysis input
  
  Anthony Botting Sep 5, 2012 5:15 PM (in response to Anthony Botting)
  
  Sorry forgot to mention the input curve is put on as an option when you apply "uniform base excitation". This just means (for example) a building that has fixtures to ground are excited by the acceleration or displacement curve that you enter.
  
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- Re: Uniform Building Code (UBC) for seismic analysis input
  
  Alessandro Tornincasa Sep 17, 2012 8:18 AM (in response to Anthony Botting)
  
  Thank you a lot Tony, this is a very useful piece of information.
  
  Alessandro
  
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