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

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトルBridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management
ページ3576-3583
ページ数8
出版ステータスPublished - 2010 12 1
イベント5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010 - Philadelphia, PA, United States
継続期間: 2010 7 112010 7 15

出版物シリーズ

名前Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management

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

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