101
Appendix II
The Section Properties of the Superstructure, Pier Cap Beam and Columns of the Prestressed
Concrete Girder Bridge
Superstructure
Figure II-1. The actual cross section of the prestressed concrete bridge superstructure [Maday, 2002]. All dimensions are in mm.
102
25100
Y
X200
2590 2590 2590 2590 2590 2590 2590 2590 2590 895
1829
895
Figure II-2. The simplified cross section of the prestressed concrete bridge superstructure. This figure was not drawn to scale. All dimensions are in mm.
103
Figure II-3. The cross section of the prestressed concrete girder [PCI Bridge, 1997].
Prestress girders:
mminH 1829.72 ==
MPafc
55'=
MPafEc
900,34554700'4700 ===
104
( )( ) ( )( )( ) ( )( ) ( )( )
( )( ) ( )( )( ) ( )( ) ( )( )
( )( ) ( )( )( ) ( )( ) ( )( )
( )( ) ( )( )( )
410
4
23
2
323
2
323
2
323
1057.1
600,37
810610612
1
3
19105.4
2
1105.4
36
15.1372372
12
1
3
1122
2
122
36
1425.525.5
12
1
3
31162
2
1162
36
113165.3165.3
12
1
2
mm
in
Iyy
×=
=
+
+
+
++
+
+
++
+
+
++
=
Deck:
MPafc
30'=
( )
( ) ( )
( ) ( )( ) ( )( )( )( )
( )( ) ( )( )( )412
2
23
6
26
1047.4
4.9141349000,49510000,000,000,22710
13498.1928100,25200739.0200100,2512
1739.0
13491066.8
4.914000,495108.1928100,25200739.0
1066.8000,49510)200100,25739.0(
739.034900
25700
700,25304700'4700
in
I
mmy
mmA
n
MPafE
xx
tr
c
×=
−++
−+
=
=×
××+×××=
×=×+××=
==
===
105
( )( ) ( )( ) ( )( )( )( ) ( )
( )( ) ( )( )( )
( )( ) ( )( )( )
( )( ) ( )( )( )
( )( ) ( )( )( )
( )( ) ( )( )( )414
2
2
2
2
2
23
1069.4
1295000,4952000,000,700,152
3885000,4952000,000,700,152
6475000,4952000,000,700,152
9065000,4952000,000,700,152
11655000,4952000,000,700,152
739.062751255020021255020012
1739.02
550,122
25100
mm
I
mmx
yy
×=
++
++
++
++
++
+
=
==
Pier Cap Beam
Figure II-4. The actual pier cap beam cross section [Maday, 2002]. All dimensions are in mm, and the 1:20
scale is no longer correct.
106
Figure II-5. The simplified pier cap beam cross section [Maday, 2002].
The pier cap beam height is not constant, since the pier cap beam is tapered. Thus the
average pier cap beam height is used, which is calculated as follows:
( ) ( )
( )( )
( )( )
( )( ) 2
4113
4113
000,260,212701781
1004.31270178112
1
1098.51781127012
1
1781
882,952
25662,9725714,97
mmA
mmI
mmI
mm
Height
yy
xx
==
×==
×==
=
−−+−
=
#10 rebars
#10 rebars
1270 mm
1781
mm
107
Column
Figure II-6. The column cross section that has a diameter of 1067 mm [Maday, 2002]. All dimensions are
in mm, and the 1:20 scale is no longer correct.
( )
( )
( ) 44
4104
4104
000,89410674
1
1036.6106764
1
1036.6106764
1
mmA
mmI
mmI
xx
yy
==
×==
×==
π
π
π
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