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B1/VM4

This solution is based on the NZ standard B1/VM4. The calculation is the same as for the standard approach, except the following coefficients:

bearing capacity factors:

shape factors:

depth factors:

for φ = 0 and d/b ≤ 1:

for φ = 0 and d/b > 1:

for φ > 0:

for d/b ≤ 1:

for d/b > 1:

inclination factors:

for φ = 0:

for φ > 0 H parallel to Lef:

for φ > 0 H parallel to Bef:

where:

d

-

depth of the footing bottom

b

-

width of foundation

l

-

length of foundation

φ

-

angle of internal friction of soil

c

-

cohesion of soil

H

-

horizontal component of resultant load

V

-

vertical component of resultant load

Literature:

Acceptable Solutions and Verification Methods For New Zealand Building Code Clause B1 Structure, 1 December 2008

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