GGU-UNDERPIN: Analysis principles

The bearing capacity analysis will be carried out according to DIN 4017:2006. The following relationship applies:

Additionally, the depth coefficients T_c and T_d not documented in DIN 4107 may be taken into consideration.

Bearing capacity coefficients N_c N_d and N_b

The following values are adopted:

• N_c0 N_d0 N_b0 according to DIN 4017

• according to DIN 4017 (shape coefficients)

When entering the system data input of a length is principally of importance for the settlement analysis. The program consistently uses the values for a and b, including for calculation of the shape coefficients _d and _b for strip footings, as this delivers somewhat more favourable values.

_d = 1 + 0.2 · b/a (instead of 1.0 for strip footings)
_b = 1 + b/a · sin() (instead of 1.0 for strip footings)

• T_c T_d = depth coefficients according to the Danish standard (not permitted to DIN 4017)
  T_c = T_d = 1 + 0.35 · GS / b 2.0
  GS = footing base
  b = footing width