Finite element analysis of cable-stayed strands' failure due to fire

Hossein Ataei, Mohammadhossein Mamaghani, Riyad S Aboutaha

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

Abstract

The failure of one structural element may lead to the failure of the other structural components where ultimately result in the collapse of the large sections or the entire structure. The progressive collapse of the structures have been mainly investigated for buildings. However, cable failure in cable-stayed bridges may cause catastrophic consequences due to the progressive collapse. This is also crucial in part given the importance of bridge infrastructure in transporting people and the goods across the country and the key role that they play in contributing towards the nation's economy. In design process of the cable-stayed bridges, the possibility that the loss of one cable might be leading to the collapse of the entire structure is often overlooked. This is particularly due to the structural redundancy considerations and the high safety factors in design of the structural components for these bridges. In this paper, the effects of a hypothetical fire and the thermal gradient propagation along a pre-stressed cable is studied using non-linear finite element modeling and analyses. For this purpose, the possible fire intensities and durations are studied in order to determine their effects on the strength losses in pre-stressed cables using finite element method. Results of this research could be used as basis for investigation of structural failure of cable-stayed/suspended systems.

Original languageEnglish (US)
Title of host publicationForensic Engineering 2015: Performance of the Built Environment - Proceedings of the 7th Congress on Forensic Engineering
PublisherAmerican Society of Civil Engineers (ASCE)
Pages736-745
Number of pages10
ISBN (Print)9780784479711
DOIs
StatePublished - 2015
Event7th Congress on Forensic Engineering: Performance of the Built Environment - Miami, United States
Duration: Nov 15 2015Nov 18 2015

Other

Other7th Congress on Forensic Engineering: Performance of the Built Environment
CountryUnited States
CityMiami
Period11/15/1511/18/15

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality
  • Building and Construction
  • Earth and Planetary Sciences(all)
  • Environmental Engineering
  • Materials Science(all)

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    Ataei, H., Mamaghani, M., & Aboutaha, R. S. (2015). Finite element analysis of cable-stayed strands' failure due to fire. In Forensic Engineering 2015: Performance of the Built Environment - Proceedings of the 7th Congress on Forensic Engineering (pp. 736-745). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784479711.072