Estimation of truck weights based on strain measurements from tendons of a post-tensioned concrete bridge

M. Nowak, O. Fischer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

A common approach for estimating truck weights is based on structural response data of a bridge, by means of bridge weigh-in-motion methods. Truck weights are measured indirectly, post-processing of the data by means of intelligent algorithms is required. In this work, strain measurements from tendons of historic post-tensioned Gänstor Bridge over the River Danube are analyzed. A new simplified method is proposed depending only on the values of two consecutive alternately signed peaks within the strain signal of a vehicle passage. For comparison purposes, a second method is considered based on influence lines and well established optimization algorithms (Moses algorithm). Both methods are calibrated and verified based on monitoring data of proof loading events with different vehicle types of known parameters. The proposed method is further applied to analyze larger amounts of monitoring data from multiple days allowing evaluation of truck weight distributions of regular road traffic on the bridge.

Original languageEnglish
Title of host publicationLife-Cycle Civil Engineering
Subtitle of host publicationInnovation, Theory and Practice - Proceedings of the 7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020
EditorsAirong Chen, Xin Ruan, Dan M. Frangopol
PublisherCRC Press/Balkema
Pages1667-1676
Number of pages10
ISBN (Electronic)9780367360191
DOIs
StatePublished - 2020
Event7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020 - Shanghai, China
Duration: 27 Oct 202030 Oct 2020

Publication series

NameLife-Cycle Civil Engineering: Innovation, Theory and Practice - Proceedings of the 7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020

Conference

Conference7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020
Country/TerritoryChina
CityShanghai
Period27/10/2030/10/20

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