EUROCODE 2 WORKED EXAMPLES - Federbeton

EC2 – worked examples 6-41
Table of Content
Material properties
Fig. 6.30 Geometric dimensions of bridge cross section
The following materials properties have been considered:
− Concrete Grade 35: fck = 35.0 MPa;
compressive design strength: fcd = 23.3 MPa;
compressive resistance for uncracked zones: fcd1 = 17.1 MPa;
compressive resistance for cracked zones: fcd2 = 12.0 MPa;
mean value of tensile strength: fctm = 3.23 MPa;
modulus of elasticity: Ec = 29.7·10 3 MPa;
shear modulus: G = 12.4·10 3 MPa
Poisson ratio: ν = 0.2
− Prestressing steel, (strands φ 0.6”): fptk = 1800 MPa;
0.1% proof�stress fp0.1k = 1600 MPa
total elongation at maximum load: εpu > 35‰
modulus of elasticity: Ep = 195.0·10 3 MPa;
− Reinforcing steel, Grade 500: fyk = 500.0 MPa;
design strength: fyd = 434.8 MPa;
modulus of elasticity: Es = 200.0·10 3 MPa.
Concrete cover
As environmental condition an Exposure Class 2 may be considered (Humid environment
with frost: exterior components exposed to frost).
The minimum concrete cover for Class 2 is equal to 25 mm, which should be added to
the tolerance value of 10mm; as a consequence the nominal value for concrete cover
results:
adopted in the calculations.
cnom = cmin + 10 = 25 + 10 = 35 mm