Tag
#drift
2 topics across all disciplines.
High-rise structural systems
Why tall buildings are designed by stiffness rather than strength — moment frames, shear walls, core-and-outrigger and tube systems, the drift and acceleration limits that actually govern, and how wind and damping decide the form.
Instrument calibration records — as-found is the only part that carries information
Why an as-left-only certificate tells you nothing, traceability and what a calibration certificate actually proves, drift trending to set intervals, the test uncertainty ratio, and the records a regulator or an incident investigator will ask for.