7. Shallow Foundations
C:\Users\21536\AppData\Local\Temp\7zOCBEF4013\interreg_Rakousko_Ceska_Republika_RGB.jpg
https://www.email.cz/download/k/vPwBms0jPnQoTvgo0jFvvGwDhdh9Jlfl9rKdiuyzDRyHOOMId1HvJLvOPRBH2skc4uZ
VKBw/image001.png Fachhochschulen Oberösterreich

SHALLOW FOUNDATIONS, PAD FOOTING
•Shallow foundations are the most widely used type of foundation structures.
•The foundation structures include pad footing, strip footing, footing grid and foundation slab.
•The minimum depth of foundation is 800 - 1200 mm below the surface so that the footing bottom is
in a non-frosty depth.
•Pad footing are the foundation structures that are mostly made for the foundation of the column
construction system. Pad footings transmit point loads from the columns into the ground.
•
C:\Users\21536\AppData\Local\Temp\7zOCBEF4013\interreg_Rakousko_Ceska_Republika_RGB.jpg
https://www.email.cz/download/k/vPwBms0jPnQoTvgo0jFvvGwDhdh9Jlfl9rKdiuyzDRyHOOMId1HvJLvOPRBH2skc4uZ
VKBw/image001.png Fachhochschulen Oberösterreich

PAD FOOTING
•Classification of pad footings according to the technology implementation:
•Monolithic pad footings
•Pad footings made of plain concrete - only for small layout plan dimensions (up to 2 m of side
size)
•Pad footings made of reinforced concrete - for larger layout plan dimensions
•Pad footings interspersed with stones
•Prefabricated pad footings
•Hollow (calyx) pad footings - a prefabricated column is mounted on a cement mortar bed
•Full pad footings - are manufactured as one-stage or multi-stage.
C:\Users\21536\AppData\Local\Temp\7zOCBEF4013\interreg_Rakousko_Ceska_Republika_RGB.jpg
https://www.email.cz/download/k/vPwBms0jPnQoTvgo0jFvvGwDhdh9Jlfl9rKdiuyzDRyHOOMId1HvJLvOPRBH2skc4uZ
VKBw/image001.png Fachhochschulen Oberösterreich

STRIP FOOTING
•Lightweight continuous structures can be based on a foundation lintel
•Strip footings are used to support both load-bearing and non-load-bearing walls from 6 N/m2. The
minimum size of the strip footing is 300 x 300 mm.
•Strip footing made of quarry stone - are used only rarely.
•Strip footing made of plain concrete - are used for wall constructions.
•Strip footing made of reinforced concrete - for heavy loads transmitted to the foundations with
less bearing and non-homogeneous subsoil.
•Prefabricated strip footing - Prefabricated strip footings are used when loading the foundation
soil is from 0.2 MPa to 0.35 MPa
•
C:\Users\21536\AppData\Local\Temp\7zOCBEF4013\interreg_Rakousko_Ceska_Republika_RGB.jpg
https://www.email.cz/download/k/vPwBms0jPnQoTvgo0jFvvGwDhdh9Jlfl9rKdiuyzDRyHOOMId1HvJLvOPRBH2skc4uZ
VKBw/image001.png Fachhochschulen Oberösterreich

Grid Footing
•Grid fottings re formed by strip footings, generally perpendicular to each other. Footing grid are
used for heavily loaded skeletal structures designed in non-homogeneous subsoil in soils with high
compressibility, undermining or seismically unstable areas.
C:\Users\21536\AppData\Local\Temp\7zOCBEF4013\interreg_Rakousko_Ceska_Republika_RGB.jpg
https://www.email.cz/download/k/vPwBms0jPnQoTvgo0jFvvGwDhdh9Jlfl9rKdiuyzDRyHOOMId1HvJLvOPRBH2skc4uZ
VKBw/image001.png Fachhochschulen Oberösterreich

Foundation Slab
•The foundation slabs distribute the load on the entire surface of the ground plan of the building.
Foundation slabs are used in inhomogeneous, low-load-bearing and extensively compressible base
soil. The foundation slabs are made of reinforced concrete as straight, ribbed, grate, headed,
shell or gable.
C:\Users\21536\AppData\Local\Temp\7zOCBEF4013\interreg_Rakousko_Ceska_Republika_RGB.jpg
https://www.email.cz/download/k/vPwBms0jPnQoTvgo0jFvvGwDhdh9Jlfl9rKdiuyzDRyHOOMId1HvJLvOPRBH2skc4uZ
VKBw/image001.png Fachhochschulen Oberösterreich