Technical information

2-29
microstrains in magnitude were induced in the transverse direction by all axles except
for the last one (axle 5T). As mentioned earlier, the reason for this change in sign is
related to the location of the load relative to the gauge.
-450
-400
-350
-300
-250
-200
-150
-100
-50
0
50
100
150
0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20
Time [s]
Strain in X (z=5", x=0") [
μ
strain]
BTC
1S
1D
1T2D
2T
3T
4T
5T
-450
-400
-350
-300
-250
-200
-150
-100
-50
0
50
100
150
0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20
Time [s]
Strain in X (z=5", x=0") [
μ
strain]
ATC
1S
1D
1T
2D 2T
3T
4T
5T
Figure 2.5.4: Horizontal strains in the transverse direction (i.e., strain in X) at the
bottom of the HMA course as a result of one truck pass. Gauges positioned along Y-
axis in Figure 2.4.3.