D-Settlement - Reliability Analyses
Actual settlements will deviate from predictions, due to soil variability and additional uncertainty. D-Settlement can estimate the bandwidth in total and residual settlement during the design stage.
D-Settlement can also update and reduce the bandwidth during the construction stage, after a fit on measurements.
- The crude Monte Carlo method determines the bandwidth in total and residual settlements, including the exceedance probability of the allowed residual settlement.
- The First Order Second Moment (FOSM) method is a quick alternative to approximate the bandwidth in total settlements.
- The iterative First Order Residual Moment (FORM) method is an alternative to approximate the exceedance probability of the allowed residual settlement.
Resulting from a reliability analysis is also a graphical overview of the time dependent sensitivity of settlements, for variation of uncertain soil parameters.
ettlements with bandwidth, before and after the fit
D-Settlement comes as a standard module, which can be extended further with other modules to fit more advanced applications