PSI - Issue 44

Rebecca Asso et al. / Procedia Structural Integrity 44 (2023) 894–901 Rebecca Asso et al./ Structural Integrity Procedia 00 (2022) 000–000

899

6

Table 2: Measured displacement of Pile 2

PILE 2

Displacement of Sensor 1

Displacement of Sensor 2

S max [mm]

S min [mm]

ΔS [mm]

S max [mm]

S min [mm]

ΔS [mm]

Pre-retrofitted Structure Post-retrofitted Structure

36.38 39.68

-7.83 23.47

44.21 16.21

6.83

-8.61 0.35

15.43 21.39

21.75

The curve defined by the time-history of the displacements is shown in Figure 6a to Figure 6d.

a) Crack meter displacement of North Pile 1 – Pre-Retrofitted

b) Crack meter displacement of North Pile 2 – Pre-Retrofitted

c) Crack meter displacement of North Pile 1 – Post-Retrofitted

d) Crack meter displacement of North Pile 2 – Post-Retrofitted

Figure 6: Maximum and minimum displacements

1.4. Finite element model A Finite Element (FE) analysis is used to develop the case study and further investigate the state of the structure. The box girder bridge is developed in MIDAS Civil (MIDAS Information Technology Co. 2022), with the use of beam elements featuring the geometrical and mechanical properties of the as-built features of the bridge were implemented.