000004735 001__ 4735
000004735 005__ 20141119144549.0
000004735 04107 $$aeng
000004735 046__ $$k2002-06-02
000004735 100__ $$aLeming, Sarah K.
000004735 24500 $$aBRIDGE WEIGH-IN-MOTION SYSTEM DEVELOPMENT USING STATIC TRUCK/DYNAMIC BRIDGE MODELS

000004735 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004735 260__ $$bColumbia University in the City of New York
000004735 506__ $$arestricted
000004735 520__ $$2eng$$aIn this paper, we present recent work on the development of a weigh-in-motion (WIM) system for use on in-service highway bridges. We consider the problem of processing a bridge’s elastic response due to a passing truck and, from it, estimating the truck’s axle weights and gross weight. A dynamic model of the bridge that includes its inertial effects is constructed using a finite element model of an Euler beam. The truck is described using two moving point masses. The deflection of the beam at the midpoint is measured over time, and an optimization routine is employed to estimate the values of unknown parameters. The velocity is assumed to be measured by an independent sensor, and the axle spacing is determined from it, leaving only the weights unknown. The estimated values of the axle weights and total weight of the truck converge to within 0.03% of their true values when no measurement noise was present. When measurement noise was added, the axle weights could be estimated to within less than 3% for noise up to 0.1mm in a signal on the order of 0.2mm.

000004735 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004735 653__ $$a

000004735 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004735 720__ $$aLeming, Sarah K.$$iStalford, Harold L.
000004735 8560_ $$ffischerc@itam.cas.cz
000004735 8564_ $$s61169$$uhttp://invenio.itam.cas.cz/record/4735/files/248.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004735 962__ $$r4594
000004735 980__ $$aPAPER