Redundancy evaluation of composite twin i-girder bridges in fractured condition

H. Lam, W. Lin, T. Yoda, K. Ono

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

Abstract

Despite commonly used in highway bridge design in Japan, composite twin I-girder bridge system is currently classified as non-redundant mainly due to the oversimplified assumption in the current bridge design. In this study, two composite twin I-girder bridge models are tested to investigate the mechanical behavior and redundancy analyses of the composite twin I-girder bridge system in fractured condition. Numerical models were first validated based on the experimental results. Hereafter, numerical study was carried out to investigate the effect of fracture location and the effect of concrete slab on the redundancy level of the composite twin I-girder bridge system. Results show that the fracture at the mid-span section is the most critical damage condition comparing to other fracture locations. In addition, the concrete slab is found as the main structural component that ensures the survivability of the composite twin I-girder bridge system in fracture condition.

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
Pages393-400
Number of pages8
Publication statusPublished - 1 Jan 2018
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Bridge Maintenance, Safety and Management - Melbourne, Australia
Duration: 9 Jul 201813 Jul 2018
Conference number: 9

Conference

ConferenceInternational Conference on Bridge Maintenance, Safety and Management
Abbreviated titleIABMAS
CountryAustralia
CityMelbourne
Period09/07/201813/07/2018

Fingerprint Dive into the research topics of 'Redundancy evaluation of composite twin i-girder bridges in fractured condition'. Together they form a unique fingerprint.

Cite this