HI:
I am doing a preliminary liquefaction potential analysis. I am using the methods outlined in SP117 (from the California...). Since I the project is located in an area with a low seismicity (upstate NY), and since I believe the data available to calculate the peak ground accelation (PGA)using predictive relationships are not reliable, I am trying to use the PGA values obtained at the USGS web site by zip code (i.e. I can obtain a PGA value with a PE of execeedence of 10% in 50 years). However, this value refers to Site Class B (rock site). Does somebody knows how I can relate this value to a class different than B (i.e. E)? Also, according to the IBC 2000 code, for a class site F, a specific site evaluation should be done. I belive the code is very vague. Does somebody refer to where I can find more info about this specific site evaluation. I have read Earthquake Engineering, by Dr. Kramer from the U of W., and I believe I know what to do. However, I would like more input. Thank
I am doing a preliminary liquefaction potential analysis. I am using the methods outlined in SP117 (from the California...). Since I the project is located in an area with a low seismicity (upstate NY), and since I believe the data available to calculate the peak ground accelation (PGA)using predictive relationships are not reliable, I am trying to use the PGA values obtained at the USGS web site by zip code (i.e. I can obtain a PGA value with a PE of execeedence of 10% in 50 years). However, this value refers to Site Class B (rock site). Does somebody knows how I can relate this value to a class different than B (i.e. E)? Also, according to the IBC 2000 code, for a class site F, a specific site evaluation should be done. I belive the code is very vague. Does somebody refer to where I can find more info about this specific site evaluation. I have read Earthquake Engineering, by Dr. Kramer from the U of W., and I believe I know what to do. However, I would like more input. Thank
