Foundations are differentiated into:
The strip foundation is used to support the wall or floor slab. In this way, all vertical and horizontal loads of the protruding walls are transferred to the ground. Typically, the strip foundation is wider than the wall itself to increase the load distribution area between the wall and the ground.
In strip foundations, only the area under load-bearing walls is provided with linear foundations.
For this purpose, trenches are dug in the subsoil, which are usually twice as wide as the walls above.
Strip foundations can be made of reinforced and unreinforced concrete.
Strip foundations save material compared to foundation slabs. However, for the execution of strip foundations, the soil must be relatively load-bearing.
In the case of complex floor plans, the execution of strip foundations may be relatively complex. In addition, they provide less protection against soil moisture than continuous panels.
Nowadays, strip foundations are often laid in conjunction with continuous floor slabs. For this purpose, the foundation in the area of load-bearing walls is made thicker than in the other areas.
order to determine the exact width, the concrete quality and the statically required reinforcement, a static calculation is necessary, which is based on the load-bearing capacity of the soil and the type of load.
In order to produce a strip foundation made of reinforced concrete, special foundation formwork is available into which cast-in-place concrete is added.
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