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Updated Risk Targeted Ground Motion Calculator Documentation (markdown) authored by Luco, Nicolas's avatar Luco, Nicolas
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Risk-Targeted-Ground-Motion-Calculator-Documentation.md
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...@@ -31,7 +31,7 @@ Five plots illustrating the step-by-step process of calculating the risk-targete ...@@ -31,7 +31,7 @@ Five plots illustrating the step-by-step process of calculating the risk-targete
This is simply a graphical representation of the spectral response acceleration values (x-axis) and their annual frequencies of exceedance (y-axis) provided by the user. For more information on these values, users are referred to the Documentation for the 2008 Update of the [USGS National Seismic Hazard Model] (http://pubs.usgs.gov/of/2008/1128/). This is simply a graphical representation of the spectral response acceleration values (x-axis) and their annual frequencies of exceedance (y-axis) provided by the user. For more information on these values, users are referred to the Documentation for the 2008 Update of the [USGS National Seismic Hazard Model] (http://pubs.usgs.gov/of/2008/1128/).
### Step 2: Fragility Curves ### Step 2: Fragility Curves
These are generic fragility curves defined by a point corresponding to a 10% probability of structural collapse and a Beta (standard deviation) value of 0.8. These are generic fragility curves defined by a point corresponding to a 10% probability of structural collapse and a Beta (standard deviation) value of 0.6.
### Step 3: Derivative of Fragility Curves ### Step 3: Derivative of Fragility Curves
These are simply the derivatives of each respective fragility curve. They are provided as a reference for the next step in the calculation process. These are simply the derivatives of each respective fragility curve. They are provided as a reference for the next step in the calculation process.
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