Rotation effects on measurements of lateral motion

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Journal titleEarthquake Engineering and Structural Dynamics
Pages36977; # of pages: 293
Subjectrotation; sway (motion); measuring instruments; inertial transducers; horizontal movement measurement; rotation of measurement location effects; translational signal amplitude; correction procedures; tower structures; suspension bridges; frame building structures; oscillation des constructions; instruments de mésure
AbstractInertial transducers that measure horizontal movement are affected by rotation of the measurement location. In this paper the effect of rotation is expressed quantitatively as a fraction of the translational signal amplitude and is shown to depend inversely on the effective radius of rotation of the measurement location and the square of the frequency component of the signal. Correction procedures are presented for various cases that arise in the determination of modal amplitudes and mode shapes for tower structures, suspension bridges and frame building structures.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number26173
NPARC number20377300
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Record identifier8faab60e-3ac4-4723-ac20-8387ca591886
Record created2012-07-24
Record modified2016-05-09
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