2-dimensional effective stress analysis for a damaged bridge located in the caldera of Mount Aso in 2016 Kumamoto earthquake

Yukihide Kajita, Taiji Mazda, Kunihiko Uno, Takeshi Kitahara

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

Abstract

In this paper, we conducted a two-dimensional effective stress analysis in consideration of the interaction between the ground and the structure for the Kurumakaeri Bridge which is located in the caldera of Mount Aso. From the results of the analyses, it is confirmed that the ground around the abutment subsided by about 26 cm due to the deformation of the soft volcanic ash soil. Furthermore, it is confirmed that the collision between the superstructure and the abutment happened because the abutment moved to the front side. Due to this movement, the deformation of about 34 cm occurred at the rubber bearing after the earthquake ended.

Original languageEnglish
Title of host publicationIABSE Congress, Christchurch 2020
Subtitle of host publicationResilient Technologies for Sustainable Infrastructure - Proceedings
EditorsAnthony Abu
PublisherInternational Association for Bridge and Structural Engineering (IABSE)
Pages1142-1149
Number of pages8
ISBN (Electronic)9783857481703
Publication statusPublished - 2020
EventIABSE Congress Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Christchurch, New Zealand
Duration: Feb 3 2021Feb 5 2021

Publication series

NameIABSE Congress, Christchurch 2020: Resilient Technologies for Sustainable Infrastructure - Proceedings

Conference

ConferenceIABSE Congress Christchurch 2020: Resilient Technologies for Sustainable Infrastructure
CountryNew Zealand
CityChristchurch
Period2/3/212/5/21

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Management of Technology and Innovation
  • Safety, Risk, Reliability and Quality
  • Renewable Energy, Sustainability and the Environment

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