Civil Engineering Reference
In-Depth Information
Figure 4.4
Centrally prestressed beam
Figure 4.5
Eccentrically prestressed beam
loads or increase its span. It effectively creates a new construction material which is
strong in tension.
It is this view of prestressing that is the basis for most codes of practice, where
tensile bending stresses in concrete are either proscribed completely, or limited to very
low values which are below the cracking threshold of concrete.
