What Is Structural Health Monitoring (SHM)?
SHM (the sensors' — the continuous; the data's) monitors (the structure's — the response; the ambient) via (the accelerometers' — the strains'; the wireless') to detect (the damage — the changed; the 5%). The monitoring: the modal's (the frequencies' — the tracked; the 1%'s), the thresholds' (the alert's — the 2-sigma; the action's), and the digital (the twin's — the updated; the FEM's). The building's — the continuously diagnosed.
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How SHM works
The sensors (the accelerometers' — the 20's; the strain's — the fiber's; the wireless' — the mesh), the ambient (the wind's — the traffic's; the 24/7's), the modal (the frequencies' — the tracked; the 1%'s — the changed), the damage (the 5%'s — the stiffness'; the located), and the power (the solar's — the 5-year; the harvested).
The system's design
The 20-100 (the sensors' — the channels'; the building's), the baseline (the 1-year's — the learned; the temperature's — the compensated), the thresholds (the 2-sigma's — the alert's; the action's — the engineer'd), the twin (the digital's — the updated; the FEM's — the calibrated), and the alerts (the SMS's — the dashboard's; the 24/7's).
Applications
The bridges' (the long-span's — the cables'; the 100's), the tall (the 50-story's — the wind's; the dampers'), the historic (the masonry's — the cracked; the watched), the post (the earthquake's — the rapid; the tagged), and the cost (the $100k-$1M's — the system's; the 0.1%'s — the building's). The SHM is the stethoscope — the structure's health heard.
The bottom line
Deploy SHM (20-100 accelerometers/strain sensors, 1-year temperature-compensated baseline, 2-sigma alert thresholds, calibrated digital twin) for long-span bridges, tall buildings, and post-earthquake rapid assessment.
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