000011953 001__ 11953
000011953 005__ 20141205160004.0
000011953 04107 $$aeng
000011953 046__ $$k2008-10-12
000011953 100__ $$aUehan, Fumiaki
000011953 24500 $$aDevelopment of Non-Contact Vibration Measuring System for Inspection of Seismic Damage to Railway Structures

000011953 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011953 260__ $$b
000011953 506__ $$arestricted
000011953 520__ $$2eng$$aThis paper introduces the non-contact vibration measuring system known as U-Doppler that has recently been developed by the RTRI. An effective tool for the quick damage inspection of structures is necessary for promptly restoring an ill-functioned railway system due to an earthquake. In the field of railway structure monitoring, dynamic characteristics estimated by vibration measurements are applied to evaluate structural integrity. Adopting a long-distance remote measurement method with U-Doppler enables improvement of the efficiency and safety of measurement, since it is unnecessary to install sensors and cables at locations high above structures and remove them later. This paper first gives an outline of U-Doppler and its measuring method. It then goes on to verify the accuracy of U-Doppler using the results of laboratory experiments, microtremor measurement of a rigid-frame viaduct, impact vibration measurement of a bridge pier, and deflection measurement of a bridge girder.

000011953 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011953 653__ $$aU-Doppler, LDV, remote vibration measurement, inspection, railway structure

000011953 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011953 720__ $$aUehan, Fumiaki
000011953 8560_ $$ffischerc@itam.cas.cz
000011953 8564_ $$s1182745$$uhttps://invenio.itam.cas.cz/record/11953/files/05-06-0136.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0136.
000011953 962__ $$r9324
000011953 980__ $$aPAPER