Applied Loads and Stability of Steel and Steel-Concrete Composite Bridges - Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges - page 139

Table 3.9 Definition of Wheels and Axles According to EC1 [ 3.1 ]
Wheel/Axle Type

Geometric Definition

A

2.00 m

320 X

320

mm

mm

220 mm 220 mm

B

2.00 m

X

320 320

mm

mm

220
mm

220
mm

220
mm

220
mm

C

2.00 m

320
mm

320
mm

X

270 mm

270 mm

1.2 m 6.0 m 1.2 m

Key
w 1 Lane width
X Bridge longitudinal axis 0.4 m

0.4 m 2.0 m w

1

X

Figure 3.14 Fatigue Load Model 3 according to EC1 [ 3.1 ].

motortruck in the traffic flow, the total number of vehicles per year to be
considered for the whole carriageway N obs should be defined, and each stan-
dard motortruck is considered to cross the bridge in the absence of any other
vehicle. Fatigue Load Model 5 (based on recorded road traffic data) consists
of the direct application of recorded traffic data, supplemented, if relevant,
by appropriate statistical and projected extrapolations.