Record surface levels, beam geometry and column verticality against an agreed reference. Heatmaps and deviation data provide measured evidence for the responsible engineer’s assessment; the survey does not itself determine structural safety or compliance.
A deflection survey records geometry at an agreed point in time. It can show departures from a specified design model, reference line or comparison plane; the brief determines which deviations matter.
Total station observations and laser scanning capture accessible geometry using a method matched to the agreed tolerance. Measured data is compared with the agreed design model or reference plane.
Deviation maps and level data show measured differences from that reference. The report states coverage and limitations so the responsible engineer can assess tolerances, remedial levels or fixing design.
We agree the required measurement tolerance and observation method with the engineer, then check control, coverage and repeatability before reporting the observed deviations.
Reports state the agreed comparison basis, measured deviations and relevant limitations. The responsible engineer determines the implications for structural performance, compliance or remedial design.
A verified workflow for structural deflection surveys data capture.
Establish and check survey control for the agreed observation tolerance.
High-density capture of the structural element.
Digital overlay of As-Built vs Design model.
Generate heatmaps, contour plots, and statistical analysis.
Yes, we produce 'wall plumb' heatmaps ideal for lift shafts and tall facades.
Any TR34-related survey scope must be reviewed against the project specification before we confirm the measurement method and reporting basis.
The achievable survey and comparison tolerance depends on the surface, access, control and measurement method. We confirm a suitable approach against the engineer's brief before capture.