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Smart Structures and Systems Volume 38, Number 2, August 2026 , pages 183-204 DOI: https://doi.org/10.12989/sss.2026.38.2.04 |
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A framework study for determining additional threshold values for SHM in the context of the TMD controlled tower structure |
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Azer Kasımzade, Varol Koç, Emin Nematlı
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| Abstract | ||
| This study integrates performance analysis, structural control, and SHM for a high-rise building. For this study, a Tower Structure equipped with a Tuned Mass Damper (TMD) control system and in the process of having its SHM system installed was selected. In this study, the abbreviation "BT" is used for the examined tower structure. For the SHM system, which will continuously monitor the dynamic behavior of the structure through accelerometers and sensors placed on critical floors in BT, additional threshold values based on performance analyses carried out using numerical dynamic analysis, were proposed. Critical parameters such as floor displacements, vibration characteristics, and peak displacements obtained from dynamic analyses can be used as additional threshold values that can be monitored by the SHM system. Thus, these data can be incorporated into operational decision criteria that can be transferred to the building control system. This situation could enable the evaluation of analysis results beyond design and verification use. For these purposes, the building equipped with TMD was subjected to time-historical nonlinear dynamic analyses using the finite element method (FEM). Response values under unconfined and forced vibrations were obtained using two earthquake records with different characteristics (Kobe and Chi Chi earthquakes). It has been suggested that the story drift ratio and top displacement values obtained from wind analysis also be used as additional upper threshold values to define the "normal" operating range of the TMD. It is claimed that using all these additional thresholds together with the main thresholds will significantly reduce false alarm rates. | ||
| Key Words | ||
| earthquake engineering; finite element modeling; nonlinear structural behavior; seismic response; Structural Health Monitoring (SHM); tuned mass dampers; uncertainty quantification; wind-induced response | ||
| Address | ||
| (1) Azer Kasımzade, Emin Nematlı: Azerbaijan University of Architecture and Construction, Baku, Azerbaijan; (2) Varol Koç: Ondokuz Mayis University, Samsun, Turkey. | ||