Evo Design - structural engineering Calculation No.
001-FOUNDATION
INTERACTIVE ONLINE CALCULATION SHEET Project No.
Project Title: Foundation calculation - interactive design spreadsheet   Calc. By Date Rev.
MN 16.04.2014 0
Subject/Feature: Foundation design; Foundation maximum soil pressure calculation   Checked By Date

InputÂ  Output
Footing dimensions Max. pressure on soil under foundation
Pier dimensions
Materials (soil, concrete)

per EN 1993-1-1 and EN 1993-1-8

Maximum working loads             pair of maximum loads. Mx and My are not
N = kN axial force       considered simultaneous. Values are factored,
M = kN*m bending moment       Ultimate Limit State (ULS)
F = kN horizontal force on top of foundation   Maximum working loads for the soil pressure calculation
are determined with the load factors in EN 1990
Footing Dimensions             Annex 1 Table A1.2 (Set C)
L = mm Foudation base length W = 2000 mm Foundation base width
t = 500 mm Foundation base thickness
(parameters that can not be modified in the demo version)
f = mm Depth to top of foundation base

Pier Dimensions
l = mm pier dimension along X
w = mm pier dimension along Z
h = mm pier height

Materials
Fill material characteristics
Unit weight of fill material
rfill = kN/m3 (Unit weight of fill material)

Concrete characteristics
Unit weight of concrete
rconcrete = kN/m3 Unit weight of concrete     Unit weight of fill

Total fill weight above foundation
Gfill = m3 * rfill = kN

Total foundation concrete weight
Gconcrete = m3 * rfill = kN

Loads transfered to the ground (for the calculation of soil max. pressure)
gG,j,sup =             per EN 1990
Nbase = gG,j,sup * (Gfill + Gconcrete) + N = kN     Annex 1 Table A1.2 (Set C)
Mbase = Fx * (t + h) + M = kN*m       The value for g may be modified by the National Annex
e = Mbase/Nbase = mm eccentricity
L/6 = mm
L/2 = mm
e Mbase = kN*m

Nbase = kN

Foundation Base

References:
EN 1997-1-1:2004 - Eurocode 7: Geotechnical design - Part 6 - Surface foundations