Bridges wash out simulation during tsunami by a stabilized ISPH method

Yoshiya Miyagawa; Mitsuteru Asai; Nur Ain Binti Idris

Bridges wash out simulation during tsunami by a stabilized ISPH method

Yoshiya Miyagawa, Mitsuteru Asai, Nur Ain Binti Idris

Structural Analysis and Earthquake Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In 2011, the huge tsunami caused by the great east Japan earthquake devastated many infrastructures in pacific coast of north eastern Japan. Particularly, collapse of bridges caused a traffic disorder and these collapse behaviors led to delay of recovery after the disaster. In this study, the bridge wash away accident is selected as a target issue, and it is represented in order to investigate the criteria and its mechanism by a numerical simulation. For this purpose, Incompressible Smoothed Particle Hydrodynamics (ISPH) Method, which is one of the pure mesh free methods, is utilized for the rigid body motion simulation. In this study, rigid body motion is introduced for the fluid-rigid interaction behavior during bridge wash away simulation. In the numerical analysis, the upper bridge structure is washed out by receiving an impact fluid force. The validation tests in two scales showed good agreement with experimental test and the real accident on the great east Japan earthquake tsunami.

Original language	English
Title of host publication	Proceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015
Publisher	International Center for Numerical Methods in Engineering
Pages	403-409
Number of pages	7
ISBN (Electronic)	9788494424472
Publication status	Published - Jan 1 2015
Event	4th International Conference on Particle-Based Methods, PARTICLES 2015 - Barcelona, Spain Duration: Sep 28 2015 → Sep 30 2015

Other

Other	4th International Conference on Particle-Based Methods, PARTICLES 2015
Country	Spain
City	Barcelona
Period	9/28/15 → 9/30/15

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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Bridges wash out simulation during tsunami by a stabilized ISPH method. / Miyagawa, Yoshiya; Asai, Mitsuteru; Idris, Nur Ain Binti.

Proceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015. International Center for Numerical Methods in Engineering, 2015. p. 403-409.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Miyagawa, Y, Asai, M & Idris, NAB 2015, Bridges wash out simulation during tsunami by a stabilized ISPH method. in Proceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015. International Center for Numerical Methods in Engineering, pp. 403-409, 4th International Conference on Particle-Based Methods, PARTICLES 2015, Barcelona, Spain, 9/28/15.

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abstract = "In 2011, the huge tsunami caused by the great east Japan earthquake devastated many infrastructures in pacific coast of north eastern Japan. Particularly, collapse of bridges caused a traffic disorder and these collapse behaviors led to delay of recovery after the disaster. In this study, the bridge wash away accident is selected as a target issue, and it is represented in order to investigate the criteria and its mechanism by a numerical simulation. For this purpose, Incompressible Smoothed Particle Hydrodynamics (ISPH) Method, which is one of the pure mesh free methods, is utilized for the rigid body motion simulation. In this study, rigid body motion is introduced for the fluid-rigid interaction behavior during bridge wash away simulation. In the numerical analysis, the upper bridge structure is washed out by receiving an impact fluid force. The validation tests in two scales showed good agreement with experimental test and the real accident on the great east Japan earthquake tsunami.",

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