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IBRACON Structures and Materials Journal • 2012 • vol. 5 • nº 5
R. R. F. SANTOS | D. R. C. OLIVEIRA
with the geometric and structural information from the projective
documents.
In relation to the visual inspection of the stringers and crossbeams
were observed discrete increases in lengths of the cracks in the
stringers, when compared with those shown in the cracking maps
shown in previous reports. Although agreeing with Cánovas [1]
1.3 Documents analysis and preliminary inspection
To evaluate the current state of the structure is necessary to con-
sider a set of actions which bring together enough information.
This information set came from a data analysis and reports already
made by specialized companies, along with visual inspections of
the bridge. Were consulted documents related to existing projects,
descriptive history calculation and reports that describe changes in
pathological conditions, as well as the preventive measures taken,
and a preliminary qualitative evaluation of the current state of the
bridge was done. It was found that the structure is in accordance
Figure � � �tru�tura� ���te� o� the �ri�ge
over the river Mãe Maria
Ta�le � � �perational locomotives and �agons details (Source: Vale)
Locomotives technical characteristics - EFC
Situation in April/2007
Fleet
Model
Total Pot. (HP)
Liq. Pot. (HP)
Engine
Amt.
Manuf. year
GE
C36-7B (DASH-7)
3.600
3.600
7FDL16G60
39
1984/1987
GE
C40(DASH-8)
4.000
4.000
7FDL16K10
4
1989
GE
C44CW (DASH-9)
4.400
4.374
7FDL16n50
55
1997/2001
GE
C-SL65
600
600
NTA855
1
1993
GM
SD40-2
3.000
3.000
16-645 E3C
27
1984/1987
GM
SD60M
3.800
3.800
16-710 G3A
2
1992
GM
SD70M
4.300
4.300
16-710 G3C
55
2001
Locomotive fleet in operation: 183
Figure � � Details o� t�e D����
locomotives and GDT wagons
Ta�le � � Load� from operational and future train type
Situation
Locomotive DASH9
Loaded GDT wagon
Unloaded GDT wagon
Current
300 kN/axis (1800 kN)
325 kN/axis (1300 kN)
52,5 kN/axis (210 kN)
Future
300 kN/axis (1800 kN)
400 kN/axis (1600 kN)
52,5 kN/axis (210 kN)