Civil Engineering Reference
In-Depth Information
project to the constructor. The bridge components, the VFT girders, the concrete slab, the
piles are defined as linear elements, except the infrastructures which are represented as block
elements, all being in concordance with the dimensions from the project and having real
boundaries conditions. The piles were defined as circular cross sections, d = 1,20 m, affected
by springs, the pile bedding constants being in correlation with the provided geotechnical
investigations. The materials used for the entire structure are according to the Eurocode pre-
scriptions (“Tab. 1”).
Table 1:
The structure material list
Materials
S355 J2
t
w
<= 40 mm
f
yk
355 N/mm
2
main beams
f
yd
355 N/mm
2
t
w
> 40 mm
f
yk
335 N/mm
2
f
yd
335 N/mm
2
E
A
210000 N
/mm
2
Standards
SR EN 1990, SR EN 1993, EN 10025-2
C25/30
XA1, XC2 S4
W/C=0,55 D
max
= 16
f
ck
25 N/mm
2
piles
f
cd
14 N/mm
2
E
CM
31000 N/
mm
2
E
A
/ E
CM
_
Standards
SR EN 1990, SR EN 1992, SR EN 1997
C30/37
XA1, XF3, XC2
S4 W/C=0,50 D
max
= 16
f
ck
30 N/mm
2
foundation
slab
f
cd
17 N/mm
2
E
CM
32000 N/
mm
2
E
A
/ E
CM
_
Standards
SR EN 1990, SR EN 1992, SR EN 1997
C30/37
XD1, XF2,
XC4 S3 W/C=0,50
D
max
= 16
f
ck
30 N/mm
2
abutments
f
cd
17 N/mm
2
E
CM
32000 N/
mm
2
E
A
/ E
CM
_
Standards
SR EN 1990, SR EN 1992, SR EN 1997, INTAB+
C35/45
XD3, XF2,
XC4 S4 W/C=0,45
D
max
= 16
f
ck
35 N/mm
2
in-situ con-
crete
f
cd
19,8 N/mm
2
E
CM
34000 N/
mm
2
E
A
/ E
CM
_
Standards
SR EN 19
90, SR EN 1992
C45/55
XD3, XF2,
XC4 S4 W/C=0,45
D
max
= 16
f
ck
45 N/mm
2
precast slab
f
cd
25,5 N/mm
2
E
CM
36000 N/
mm
2
E
A
/ E
CM
5,83
Standards
SR EN 19
90, SR EN 1992
Bst 500 SC
f
yk
500 N/mm
2
all elements
f
yd
435 N/mm
2
Standards
SR EN 19
90, SR EN 1992
Another important aspect of the modelling concept was the design using construction
stages, in this way the behaviour of the structure was studied and improved at every step
provided by the technology. The initial elements of the bridge were considered to act as in-
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