Maja Kreslin (Author), Peter Češarek (Author), Aleš Žnidarič (Author), Darko Kokot (Author), Jan Kalin (Author), Rok Vezočnik (Author)

Abstract

Uneven road surfaces are the primary source of excitation in the dynamic interaction between a bridge and a vehicle and can lead to errors in bridge weigh-in-motion (B-WIM) systems. In order to correctly reproduce this interaction in a numerical model of a bridge, it is essential to know the magnitude and location of the various roadway irregularities. This paper presents a methodology for measuring the 3D road surface using static terrestrial laser scanning and a numerical model for simulating vehicle passage over a bridge with a measured road surface. This model allows the evaluation of strain responses in the time domain at any bridge location considering different parameters such as vehicle type, lateral position and speed, road surface unevenness, bridge type, etc. Since the time domain strains are crucial for B-WIM algorithms, the proposed approach facilitates the analysis of the different factors affecting the B-WIM results. The first validation of the proposed methodology was carried out on a real bridge, where extensive measurements were performed using different sensors, including measurements of the road surface, the response of the bridge when crossed by a test vehicle and the dynamic properties of the bridge and vehicle. The comparison between the simulated and measured bridge response marks a promising step towards investigating the influence of unevenness on the results of B-WIM.

Keywords

interakcija vozilo in most;terestično lasersko skeniranje;neravnost vozišča;numerično modeliranje;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: ZAG - Slovenian National Building and Civil Engineering Institute
Publisher: MDPI
UDC: 624
COBISS: 182573315 Link will open in a new window
ISSN: 1424-8220
Views: 68
Downloads: 28
Average score: 0 (0 votes)
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Other data

Secondary language: Slovenian
Secondary keywords: bridge–vehicle interaction;laser scanning;road roughness;numerical modelling;
Source comment: Nasl. z nasl. zaslona; Opis vira z dne 26. 1. 2024;
Pages: str. 1-18
Volume: ǂVol. ǂ24
Issue: ǂiss. ǂ2, [article no.] 709
Chronology: Jan. 2024
DOI: 10.3390/s24020709
ID: 22635530