METHOD FOR CALIBRATING IN-SERVICE BRIDGE FORCE-MEASUREMENT BEARING SUPPORT ON BASIS OF ACCURATE DETERMINATION OF COEFFICIENT OF FRICTION

Title:

METHOD FOR CALIBRATING IN-SERVICE BRIDGE FORCE-MEASUREMENT BEARING SUPPORT ON BASIS OF ACCURATE DETERMINATION OF COEFFICIENT OF FRICTION

Document Type and Number:

WIPO Patent Application WO/2022/083054

Kind Code:

A1

Abstract:

Provided is a method for calibrating an in-service bridge force-measurement bearing support on the basis of accurate determination of a coefficient of friction, comprising the steps: A1: recording the value of a horizontal or lateral force applied to a force measurement apparatus, first recording the horizontal force or lateral force value of a sensing apparatus (5) before the force measurement apparatus is lifted; then, a power apparatus (13) applying a horizontal or lateral force to two wedge-shaped load transducers (3) on the force measurement apparatus, inducing the height of the force measurement apparatus to change, and recording the horizontal or lateral force values of the sensing apparatus (5) during the change in height or during a pause in the change; A2: according to the mechanical equilibrium relationship of the forces borne by the load transducer (3), deriving a relational expression for a coefficient of friction and the load converter (3) angle of inclination, horizontal force, or lateral force; A3: according to the recorded horizontal or lateral force values and the relational expression of A2, solving for the value of the coefficient of friction. The invention is used for solving the problem that the coefficient of friction of the wedge-shaped height adjustment force-measurement apparatus in service cannot be accurately determined, causing vertical force measurement to be inaccurate.

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Inventors:

WU DACHENG (CN)
WANG JIANMING (CN)
ZOU YIJUN (CN)
DENG YU (CN)

Application Number:

PCT/CN2021/081402

Publication Date:

April 28, 2022

Filing Date:

March 18, 2021

Export Citation:

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Assignee:

DATONG INC (CN)

International Classes:

G01N19/02; E01D19/04; G01L25/00

Foreign References:

CN112284612A	2021-01-29
CN2415054Y	2001-01-17
CN103790105A	2014-05-14
KR101987231B1	2019-06-10
CN107941398A	2018-04-20
CN102032959A	2011-04-27
KR20060114589A	2006-11-07

Other References: