Analysis according to LRFD

The analysis according LRFD (Load Resistance Design Factor) introduces two types of design coefficients – coefficients modifying the load magnitude (Load factors) and coefficients reducing the soil resistance (Resistance factors).

Dialog window "Partial factors" analysis according to LRFD

When checking individual cases of failure the program determines, whether the force or pressure act favorably or not and then pre-multiply the force by the corresponding partial factor.  The overall resistance of a structure against failure is in the final verification pre-multiplied by the corresponding resistance factor.

The program offers a set of basic coefficients. However, it is often necessary to modify individual design coefficients by the user depending on the type of structure and the way of determining soil parameters. User defined setting allows for inputting arbitrary user-defined values of partial factors. Default values according to national supplements can be copied into the user defined values using the "Adopt values" button.

Information about application of partial factors is listed in the analysis protocol.

Analysis protocol