G - Physics – 01 – M
Patent
G - Physics
01
M
G01M 5/00 (2006.01) E02D 1/02 (2006.01) G01M 7/00 (2006.01) G01N 3/34 (2006.01) G01N 33/24 (2006.01) G01N 33/42 (2006.01)
Patent
CA 2349684
The invention concerns a method and an apparatus for measuring the load bearing capacity of a infrastructure platform (10) for transport and industrial floors. The apparatus comprises a wheel (2) borne by a body (3) mounted oscillating on a trailer (4) pulled by a vehicle (9). An unbalance (13) causes the wheel (2) to vibrate. The method consists in: continuously measuring vertical acceleration of the body (3) and the wheel (2) and the angle of the centrifugal force of the unbalance with the vertical; calculating the total force applied by the wheel (2), the body (3) and the unbalance from measurements of the accelerations, and the deflection of the platform (10) by double integration of the wheel (2) acceleration.
L'invention concerne un procédé et un appareil pour mesurer la portance d'une plateforme (10) d'infrastructure de transport et sols industriels. L'appareil comporte une roue (2) portée par un châssis (3) monté oscillant sur une remorque (4) tractée par un véhicule (9). Un balourd (l3) fait vibrer la roue (2). On mesure en continu l'accélération verticale du châssis (3) et de la roue (2) et l'angle de la force centrifuge du balourd avec la verticale. On calcule la force totale appliquée par la roue (2), le châssis (3) et le balourd à partir des mesures des accélérations, et la déflexion de la plateforme (10) par intégration double de l'accélération de la roue (2).
Froumentin Michel
Leroy Maurice
Marignier Jacques
Morel Guy
Quibel Alain
Laboratoire Central Des Ponts Et Chaussees
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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