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Assessment of Building Risk Based on an Affordable Structural Health Monitoring System Developed in Taiwan

This study develops seismological algorithms to characterize the dynamic behaviors of Reinforced Concrete (RC) and Steel Reinforced Concrete (SRC) structures using the newly designed Quake Structure Integrity System (QSIS). Designed as an affordable solution for diverse stakeholders, the QSIS was deployed across multiple building seismic arrays to monitor key indicators, including natural frequencies, seismic shear wave velocities, and normalized mode shapes. The system’s performance was rigorously evaluated using both earthquake records and ambient vibration signals. Analysis reveals a significant correlation between the temporal variation of dominant frequencies and environmental temperature, emphasizing the necessity of accounting for thermal effects to avoid false positives in detecting abrupt structural changes. Our results demonstrate that this cost-effective structural health monitoring (SHM) framework provides a robust tool for real-time assessment and contributes significantly to seismic hazard mitigation.

Session: Earthquake Ground Motions and Structural Response: Emerging Tools and Applications - II

Type: Oral

Room: Ballroom G

Date: 4/16/2026

Presentation Time: 10:45 AM (local time)

Presenting Author: Wen-Tzong Liang

Student Presenter: No

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