Swedge > Probabilistic Analysis > Forces
If you are performing a Probabilistic analysis with Swedge, the following forces can be defined as random variables:
NOTE: it is not possible to define External forces as random variables.
Water Pressure (Probabilistic)
To define Water Pressure as a random variable in a probabilistic analysis:
Select Input Data and select the Water tab.
Select the Water Pressure checkbox.
Water Pressure can be defined as a random variable if you are using the % Filled Fissures option or the Custom Pressure option.
If the Type = % Filled Fissures, you can define the Percent Filled as a random variable
If the Type = Custom Pressure, you can define the Joint1 Pressure and/or the Joint2 Pressure as random variable(s).
For details about the Water Pressure options see the Water Pressure topic.
Seismic Force (Probabilistic)
To define Seismic Force as a random variable in a probabilistic analysis:
Select Input Data and select the Seismic tab.
Select the Seismic checkbox.
you can define the Seismic Coefficient as a random variable
if the Direction = User Defined, you can define the Plunge and/or Trend as a random variable.
For details about the Seismic Force options see the Seismic Force topic.
External Force (Probabilistic)
At present it is NOT possible to define an External force (i.e. point load) as a random variable in an Swedge probabilistic analysis. You can include constant External force(s) in a probabilistic analysis, but you cannot define the force as a random variable.
For details about the External Force option see the External Force topic.