Civil Engineering Reference
In-Depth Information
whereas the normal strains in the
l-t
co-ordinate are needed in the material
law of the reinforcing bars.
Figure 7.5
Stress-strain relationship for softened concrete
7.3.4
Material laws
The stress and strain of concrete in the d-direction is assumed to obey the
following material law proposed by Vecchio and Collins (1981) for the
softened concrete
(7.8a)
