10A. DIMENSIONING PART 1/4

The upper part of the dialogue box refers to the "Limit Load Failure" check in accordance with Annex G of the ECE 2000. First, from the list on the top left, select the method of calculating the limit load, depending on the type of foundation soil. The key is a key for calculating the buoyant (active) specific gravity of the soil if pressed with the left mouse button (Annex G G.1[2]). For the controls in " Bending-Deflection-Deflection ", MV >? 1,5 * ME This parameter refers to the NRC. When determining the coefficient acd , the N.E.A.C. in paragraph 5.2.2 gives the margin for its calculation according to ex.5.2a in case the moment MV (moment resulting from the non-seismic loads of the combination of ex.4.1) is significant compared to ME (seismic moment at the nearest location of possible plastic joint in the superstructure element bearing on the foundation element under consideration). Since the Regulation does not specify the magnitude of the moments beyond which ex.5.2a will apply, this determination is left to the designer's discretion. If you do not want to take into account, when calculating αcd , the most favourable case of eq.5.2a but eq.5.2, we give a sufficiently large value (e.g. 100) as the MV/ME coefficient. In the box next to the indication "qx" and "qz" the designer enters the value of the seismic behaviour coefficient of the structure per direction as defined in p.2.6 of E.A.K. 2000. The default value of the program is 3,5. In the "Maximum Pedestal Height (cm)" option and in the adjacent box type the maximum pedestal height. When dimensioning the program performs a perforation check. If the initial pedestal height is not sufficient, by continuous testing the program reaches a height at which all checks are satisfied. In case a pedestal height greater than the maximum set is required, a warning message is issued to the user. The last section of the pedestals concerns the control of differential settlements . Check the corresponding option and specify the upper limit of the δcr/l ratio that the program will take into account for the differential settling check.