PSI - Issue 44

Gianluca Standoli et al. / Procedia Structural Integrity 44 (2023) 2066–2073 G. Standoli et al. / Structural Integrity Procedia 00 (2022) 000 – 000

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Fig. 5. Bell towers frequencies after removal of environmental factors influence: frequencies tracked till June 2021 in black, and till June 2022 in red.

At last, Fig. 5 graphically shows the trend for the first for modes modal frequencies in time for both the towers. In