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126
IBRACON Structures and Materials Journal • 2013 • vol. 6 • nº 1
Comparison and calibration of numerical models from monitoring data of a reinforced concrete highway bridge
4. Monitoring plan
For monitoring the bridge over Jaguari river the following mag-
nitudes were taken into account: deformation, acceleration and
displacement.
From the results of Models 1 to 5, five critical regions were
Figure 6 – Sensors used in bridge monitoring
Figure 7 – Truck-loads
According to Brazilian Standard NBR 7188:1984
Truck
A
B
Table 3 – Relative errors for vertical displacement compared to Model 4
Loading
Relative error (%) span = 20m
Model 1
Model 2
Model 3
Model 5
-
GB
GA
GB
GA
GB
GA
Dead load
11.75
3.59
10.96
2.24
7.02
7.74
4.83
Truck load
7.80
2.78
1.45
13.89
0.00
-
-
Loading
Relative error (%) span = 26m
Model 1
Model 2
Model 3
Model 5
-
GB
GA
GB
GA
GB
GA
Dead load
6.67
0.00
6.31
4.68
9.97
4.29
10.91
Truck load
8.11
0.87
1.87
12.17
0.00
-
-
Loading
Relative error (%) span = 30m
Model 1
Model 2
Model 3
Model 5
-
GB
GA
GB
GA
GB
GA
Dead load
5.71
0.45
0.98
2.11
3.33
7.15
7.91
Truck load
5.71
0.60
4.61
10.24
0.00
-
-