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Twim, A MATLAB toolbox for real-time evaluation and monitoring of traffic loads on railway bridges
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Design and Bridges.ORCID iD: 0000-0002-5447-2068
2009 (English)In: Structure and Infrastructure Engineering, ISSN 1573-2479, E-ISSN 1744-8980, Vol. 5, no 5, 407-417 p.Article in journal (Refereed) Published
Abstract [en]

This paper describes Twim, a toolbox written in the MATLAB computer language. Twim is designed for monitoring bridge behaviour during train passages as well as for performing Bridge Weigh-In-Motion of railway traffic, both in real-time and offline. The algorithms calculate the static bogie loads and bogie distances, as well as the speed and acceleration of the train. Twim also includes visualization functions, automatic identification of known locomotives and an auto-calibration that uses locomotives with known bogie loads. The algorithms used place specific requirements on both the bridge type and the instrumentation of the bridge. These requirements are explained in the paper. The instrumentation of several bridges is described, and some of the interesting results gained through this instrumentation are presented.

Place, publisher, year, edition, pages
2009. Vol. 5, no 5, 407-417 p.
Keyword [en]
Acceleration, B-WIM, Bridges, Dynamics, Monitoring, Railways, Traffic loads, Weigh-in-motion, Auto calibration, Automatic identification, Bridge-type, Computer language, Matlab toolboxes, Offline, Railway bridges, Railway traffic, Train passages, Visualization functions, Weigh in motion, Automation, Bogies (railroad rolling stock), Electronic data interchange, Engines, Instruments, Locomotives, MATLAB, Railroads
National Category
Reliability and Maintenance
Identifiers
URN: urn:nbn:se:kth:diva-26069DOI: 10.1080/15732470701478370ISI: 000268656700006Scopus ID: 2-s2.0-70449674541OAI: oai:DiVA.org:kth-26069DiVA: diva2:369656
Note
QC 20101111Available from: 2010-11-11 Created: 2010-11-11 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Monitoring railway traffic loads using bridge weight-in-motion
Open this publication in new window or tab >>Monitoring railway traffic loads using bridge weight-in-motion
2007 (English)Licentiate thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2007. xiii, 33 p.
Series
Trita-BKN. Bulletin, ISSN 1103-4270 ; 90
National Category
Reliability and Maintenance
Identifiers
urn:nbn:se:kth:diva-4317 (URN)
Presentation
2007-03-08, Seminarierummet, KTH, Brinellvägen 34, Stockholm, 13:00
Supervisors
Note
QC 20101111Available from: 2007-03-26 Created: 2007-03-26 Last updated: 2012-02-21Bibliographically approved

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Karoumi, Raid

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