PSI - Issue 64

Marco Pirrò et al. / Procedia Structural Integrity 64 (2024) 661–668 Author name / Structural Integrity Procedia 00 (2019) 000–000

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(a)

(b)

(c)

Fig. 2. a) The KW51 railway bridge; b) original connections between the diagonals and the arches and the bridge deck; (c) connections after the retrofitting (Maes and Lombaert 2021).

Fig. 3. Excerpt of the monitoring system installed on KW51 bridge.

a)

Tr.

b)

Tr.

Fig. 4. Surface temperature (a) and relative humidity (b) during the monitoring period.

Since the dynamic characteristics of the bridge are included in 0–10 Hz (Maes and Lombaert 2021), the accelerations, originally sampled at 825.8 Hz, are: (a) lowpass filtered with an eighth-order Chebyshev type I