Study on the cause of brittle fracture during earthquakes in steel bridge bent focusing on stress triaxiality

H. Tamura, E. Sasaki, H. Yamada, H. Katsuchi

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

Abstract

This study analytically investigated on the cause of brittle fracture during the large earthquakes based on the stress triaxiality. The target structure is a steel bridge bent which was fractured during the South Hyogo prefecture Earthquake. In this bent, fracture was started from the weld bead toe exists in corner of the bent. Therefore the effects of weld bead shape were investigated in this study. From the FEM analyses which simulate the stress state under the earthquake, it was revealed that there is a possibility that the brittle fracture occurs due to weld bead shape effect which generates the high stress triaxiality at the fracture origin.

Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management
Pages3570-3577
Number of pages8
Publication statusPublished - 2010 Dec 1
Event5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010 - Philadelphia, PA, United States
Duration: 2010 Jul 112010 Jul 15

Other

Other5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010
CountryUnited States
CityPhiladelphia, PA
Period10/7/1110/7/15

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Building and Construction
  • Architecture

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    Tamura, H., Sasaki, E., Yamada, H., & Katsuchi, H. (2010). Study on the cause of brittle fracture during earthquakes in steel bridge bent focusing on stress triaxiality. In Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management (pp. 3570-3577)