GEOMETRIC CHARACTERISTICS OF CROSS-SECTION

SPAN ID

C1 (P9 - P10)

C2 (P10 - P11)

C3 (P11 - P12)

Number of webs

n_w

2

2

2

[−]

Left cantilever

a

2.73

2.725

2.73

[m]

Right cantilever

b

6.50

6.000

6.50

[m]

Height of the box-girder

h

4.00

5.500

4.14

[m]

Upper flange thickness

t_s

0.034

0.300

0.034

[m]

Lower flange thickness

t_i

0.017

0.300

0.017

[m]

Webs thickness

t_w

0.017

0.300

0.017

[m]

Cross-section area

A

0.6528

8.535

0.6576

[m²]

Lower static moment

S_X,INF

1.8972

27.968

1.9735

[m³]

Centroid abscissa

X_G

0.00

0.00

0.00

[m]

Centroid ordinate

Y_G,LOWER

2.91

3.277

3.00

[m]

Ordinate of the centroid from the extrados

y_G,UPPER

1.09

2.223

1.14

[m]

Moment of inertia with respect to X

$I_X^G$

1.7124

45.579

1.8454

[m⁴]

Moment of inertia with respect to Y

$I_Y^G$

6.6606

72.642

6.7109

[m⁴]

Internal shear area

Ω = 2A

52.0000

66.000

53.8200

[m²]

Geometric circuit

$H={\displaystyle \underset{C}{\int }\frac{\text{d}s}{t\left(s\right)}}$

1 044.12

76.667

1 060.59

[−]

Torsional stiffness factor

$J=\frac{4{\Omega }^2}{H}$

2.5898

56.832

2.7311

[m⁴]