Traffic load patterning on long span bridges

D. Guo, C. Caprani

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

For highway bridges, current live load models typically replicate the effects of real traffic streams at a certain return period. Most standards stipulate that the worst load effect should be considered, obtained by patterning the live load on the adverse portion of the influence lines only. Certainly, this is a worstcase scenario, but real traffic does not pattern in this manner. This paper examines design standards’ approach to load patterning against the behaviour of real traffic. Traffic microsimulation is adopted on a generic 1200 m bridge. We consider the possible road topologies that might give rise to design standard loading patterns. The results show that real traffic cannot achieve the code-inferred traffic pattern. The load effect results are extrapolated to represent assessment and design return periods. A possible road topology is put forward, and it can be the prototype of a new method to assess the load effect.

Original languageEnglish
Title of host publicationMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
EditorsDan M. Frangopol, Riadh Al-Mahaidi, Colin Caprani, Nigel Powers
PublisherCRC Press
Pages1389-1396
Number of pages8
ISBN (Print)9781138730458
Publication statusPublished - 1 Jan 2018
EventInternational Conference on Bridge Maintenance, Safety and Management (IABMAS) 2018 - Melbourne Convention and Exhibition Centre, Melbourne, Australia
Duration: 9 Jul 201813 Jul 2018
Conference number: 9th
https://iabmas2018.org/
https://iabmas2018.org/downloads/IABMAS2018-Program-Book.pdf (Program book)

Publication series

NameMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018

Conference

ConferenceInternational Conference on Bridge Maintenance, Safety and Management (IABMAS) 2018
Abbreviated titleIABMAS 2018
CountryAustralia
CityMelbourne
Period9/07/1813/07/18
Internet address

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