Long-term analysis of timber-concrete composite bridges

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Abstract

The design of timber-concrete composite bridges is complicated due to time-dependent phenomenon like creep, shrinkage of concrete and effects of the varying temperature and moisture content. Unfortunately, at the moment, Eurocodes include very limited guidelines for designing such bridges. Existing guidelines and methods, time-dependent material models and effects of the environmental variations were studied for the long-term analysis. Based on the findings, a simulation tool for timber-concrete composite beam accounting the time-dependent phenomena was developed. Temperature and moisture content histories of the bridge components based on the existing weather data. The tool was used to simulate the effects over the service life in two cases; a bridge built using un-shored or shored construction method. In overall, wide agreement between the simulation and the approximate model was found.

Details

Original languageEnglish
Title of host publicationConference proceedings, ICTB 2017, 3rd International Conference on Timber Bridges
Publication statusPublished - 2017
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Timber Bridges - Skellefteå, Sweden
Duration: 26 Jun 201729 Jun 2017
Conference number: 3

Publication series

NameSP rapport
PublisherRISE Research Institutes of Sweden
Number2017:26
ISSN (Print)0284-5172

Conference

ConferenceInternational Conference on Timber Bridges
Abbreviated titleICTB
CountrySweden
CitySkellefteå
Period26/06/201729/06/2017

    Research areas

  • timber-concrete composite, bridges, long-term analysis, composite beam

ID: 17358809