Structural monitoring guide
LiDAR & Laser Scanning
Remote geometry measurements for deformation, alignment and surface change.
Safety boundary: this guide is conceptual. It does not provide structural repair, access-at-height, NDT source handling, load-test, post-event occupancy or return-to-service procedures.
What this topic covers
Remote geometry measurements for deformation, alignment and surface change.
Core monitoring ideas
Laser scanning creates dense spatial representations of visible surfaces.
Repeated surveys can reveal geometric change when registration is controlled.
Line of sight, surface reflectivity and reference stability affect repeatability.
Interpretation limits
Sensor placement should follow the structural question rather than a generic grid spacing.
Evidence and data quality
Calibration, mounting and sensor health are part of the measurement system and must be tracked.
Lifecycle use
Combining complementary sensor types can reduce ambiguity when one measurement alone cannot explain a change.