B-Wim System Using Fewer Sensors

Abstract

Bridge Weigh-in-Motion (B-WIM) is the concept of using measured response on a bridge to calculate the static weights of passing traffic loads as they pass overhead at full highway speed. This paper describes an enhancement to the Moving Force Identification (MFI) algorithm by estimating the response of some DOFs using limited number of measurements in order to increase measurements number (Input). The pseudoinverse of the mode shape matrix has been utilized to approximately calculate the modal response using limited measured response. Then the calculated modal response has been used to estimate more DOFs that are different from the measured one. The proper orthogonal decomposition (POD) technique is employed to determine the governing modes that increase the modal response accuracy. Numerical example for quarter car model passing over simply supported bridge has been established to demonstrate the idea.

Introduction of Weight-In-Motion Control System as the component of the “smart” transport infrastructure

“…The introduction of weight-and-dimensional monitoring is caused by several factors, such as safety, preservation of infrastructure and reduction of emissions of pollutants in the atmosphere, decrease in the destroying influence on the road coverings [1,2] which increase with growth in weight of heavy-loaded transport exponentially. The application of such systems is also caused by the need to keep the "harmonious" competition for the allocation of the market of transport-and-logistic services among different types of transport; and that is especially relevant in Russia [3,4] The systems of weight-and-dimensional monitoring, falling into projects of telematics (the industry, which is new for Russia) are meant to contribute to the solution of this problem.…”

Improvement of the weight-and-dimensional control within the environmentally friendly transport system development

“…Construction of the considerable part of highways in Russia happened in the 1960th, when the design load of 6 tons per an axis was assumed. Newer highways were built according to two standards: GOST 52748-2007 and GOST 32960-2014, assuming other design loads (Table 1) [3][4]. 2) GOST 32960-2014: -highways with capital road clothes -highways with the facilitated road clothes and transitional type 11.…”