Measure What Matters.
Turn Insight Into Action.

Every structure moves, even when that movement is too small to see. We use sensitive accelerometers to capture these naturally occurring vibrations and establish a dynamic signature: a measurable record of how the structure responds to everyday forces.

STRAAM's Structural Dynamic Analysis helps assess structural behavior, evaluate stiffness characteristics, and identify responses that warrant closer investigation. Owners and engineers can use the findings to meet code requirements, prioritize investigations and maintenance, inform analytical models, and assess changes following construction, aging, or significant events. Our non-invasive measurements add objective performance data to the broader understanding of a structure’s condition.

Structures are constantly exposed to forces that can affect their performance. Nearby construction, earthquakes, extreme weather, heavy loading, and other significant events can introduce changes that may not be visible through inspection alone.

Continuous Monitoring uses strategically placed sensors to track a structure’s dynamic behavior and compare it against its established baseline. By measuring how different parts of the structure move together, STRAAM can identify changes in natural frequencies, mode shapes, and other performance characteristics that may indicate developing structural weakness.

Structural commissioning verifies how a structure actually performs—not simply how it was expected to perform on paper. Using non-invasive dynamic testing, we measure key characteristics such as natural frequencies, mode shapes, and damping to provide an objective picture of whole-structure behavior.

These measurements can be compared with design assumptions, analytical models, expected performance, and applicable code requirements. This helps project teams verify whether observed behavior aligns with design intent and identify areas that may require further engineering review.

After an earthquake, impact, nearby construction, extreme weather, fire, unexpected movement, or other potentially damaging event, visible inspection may not tell the entire story.

STRAAM’s Forensic Testing measures the structure’s dynamic response to evaluate how its behavior has changed and where those changes are occurring. By analyzing natural frequencies, mode shapes, stiffness characteristics, and the relationship between movement at different locations, we can identify areas that warrant closer investigation.

When pre-event or baseline measurements are available, current performance can be compared directly against the structure’s previous behavior. Even without an existing baseline, structural dynamic analysis can provide objective information to support a broader forensic investigation.