FDS Strip Foundation - Frilo

Nemetschek Frilo GmbH - Applications for structural calculation and design
FDS
Strip Foundation
The FDS application allows you
to calculate the required dimensions
of strip foundations
under centric and uniaxial eccentric
loading. The required
bending and shear reinforcement
is calculated for the selected
dimensions.
Standards
DIN EN 1992
ÖNORM EN 1992
BS EN 1992
DIN 1045/1045-1
ÖNorm B4700
Soil standard:
DIN EN 1997-1 in
conjunction with
DIN 1054:2010.
ÖNORM EN 1997-1 in
conjunction with
DIN 1054:2005.
Depending on the selected
concrete standard the
appropriate soil standard is
selected automatically
(DIN 1054:1976/2005/2010).
Loads
Wind loads G and Q
Moments MG and Mq
Loading on the foundation
area left and/or right to the
wall
The self-weight of the foundation
is considered automatically.
System and calculation
The width of the foundation is
calculated in dependence of the
given permissible soil pressure.
You can define how the iteration
should be performed:
Centrically
Increasing to the left or right
Centrically, increasing only to
one side up a particular limit
dimension
You can specify the minimum
thickness for the foundation.
For the design, the application
optionally offers a thickness
that requires either no shear
reinforcement or no bending
reinforcement either.
The soil pressure as per
DIN 1054 and the maximum
edge pressure at the left and
right are displayed as a result.
The bending moment and the
required bending reinforcement
are indicated per linear meter of
the foundation, if applicable.
For rising masonry walls, the
design is performed for the
smoothed moment underneath
the wall axis and for rising concrete
walls, for the face moment.
In addition, a shear stress
analysis is performed if required.
Product details www.frilo.com As of: 15/11/2012

Optionally, you can design the
connecting reinforcement for
rising concrete walls.
Under permanent load, no gaping
joint must occur and under
the total load, gaping of the
foundation joint is only allowed
up to the centre of gravity.
The permissible soil pressure
refers to a partial surface A'
with the load application point
in its center.
The bending design is performed
in accordance with the
kh-method. The design moment
for the bending design is calculated
in the wall axis with masonry
walls and at the face with
concrete walls.
The shear reinforcement is
located at a distance equal to
h/2 from the left and right wall
edge. Outputs are:
the shear force at the design
section, Tau0,
Tau (including the shear
zone-specific reduction) and
the shear reinforcement resulting
from Tau.
According to DIN 1045, no
shear reinforcement is required
if the following applies:
max Tau0 < k1 . Tau0ll