Verification of Foundation Eccentricity
Verification of foundation eccentricity is carried out for the 1st LS ( ) and the 2nd LS ( ) analysis.
During analysis the program performs verification for the following cases:
- maximum eccentricity in the direction of base length: ex ≤ ealw
- maximum eccentricity in the direction of base width: ey ≤ ealw
- maximum overall eccentricity: et ≤ ealw
The value of maximum allowable foundation eccentricity ealw is input in the "Settings" frame, tab " ".
The value of overall eccentricity et is provided by:
maximum eccentricity in the direction of base length
maximum eccentricity in the direction of base width
Procedure for calculating eccentricities needed for the determination an effective area of off-center (eccentrically) loaded foundation is described in more detail.
For a shallow foundation resting on a rock foundation or for a concrete slab type of foundation it is necessary in some cases to adopt different values of limit eccentricities.