Table 3 Concrete constants for Willam and Wranke material model.

From: Nonlinear analysis of hollow reinforced high strength concrete beams with web openings and different types of stirrups under torsion

 

Concrete constant

C(60)

C(80)

C(100)

1

Shear transfer coefficients for an open crack (βt)

0.30

2

Shear transfer coefficients for a closed crack (βc)

0.80

3

Uniaxial tensile cracking stress (fr)

4.3 MPa

4.96 MPa

5.55 MPa

4

Uniaxial crushing stress (\(\:{f}_{C}^{{\prime\:}}\))

48 MPa

64 MPa

80 MPa