A study on uplift pressures of tsunami acting on ceilings of water channels

Tomoyuki Takabatake; Yukinobu Oda; Kazunori Ito; Takahide Honda

A study on uplift pressures of tsunami acting on ceilings of water channels

Tomoyuki Takabatake, Yukinobu Oda, Kazunori Ito, Takahide Honda

理工学術院総合研究所

研究成果: Conference contribution

抄録

When tsunami enters a water channel of an industrial facility, the water surface inside the channel rises and uplift pressures act on the ceiling if it is reached by the water surface. In this study, magnitudes and characteristics of this uplift pressure are investigated both experimentally and numerically. The results show that (1) the uplift pressure comprises an initial impulsive pressure and a following more slowly varying pressure; (2) trapped air reduces the impulsive pressure, and thus attaching a vertical barrier to the ceiling could act as a countermeasure; and (3) the impulsive pressure can be evaluated approximately with conventional predictive methods and by appropriate numerical simulations.

本文言語	English
ホスト出版物のタイトル	Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016
出版社	American Society of Civil Engineers (ASCE)
巻	35
ISBN（電子版）	9780989661133
出版ステータス	Published - 2016 1月 1
イベント	35th International Conference on Coastal Engineering, ICCE 2016 - Antalya, Turkey 継続期間: 2016 11月 17 → 2016 11月 20

Other

Other	35th International Conference on Coastal Engineering, ICCE 2016
国/地域	Turkey
City	Antalya
Period	16/11/17 → 16/11/20

ASJC Scopus subject areas

土木構造工学
海洋工学
海洋学

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title = "A study on uplift pressures of tsunami acting on ceilings of water channels",

abstract = "When tsunami enters a water channel of an industrial facility, the water surface inside the channel rises and uplift pressures act on the ceiling if it is reached by the water surface. In this study, magnitudes and characteristics of this uplift pressure are investigated both experimentally and numerically. The results show that (1) the uplift pressure comprises an initial impulsive pressure and a following more slowly varying pressure; (2) trapped air reduces the impulsive pressure, and thus attaching a vertical barrier to the ceiling could act as a countermeasure; and (3) the impulsive pressure can be evaluated approximately with conventional predictive methods and by appropriate numerical simulations.",

keywords = "Impulsive pressure, OpenFOAM, Tsunami, Uplift pressure, Water intake/outfall",

author = "Tomoyuki Takabatake and Yukinobu Oda and Kazunori Ito and Takahide Honda",

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language = "English",

volume = "35",

booktitle = "Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016",

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note = "35th International Conference on Coastal Engineering, ICCE 2016 ; Conference date: 17-11-2016 Through 20-11-2016",

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T1 - A study on uplift pressures of tsunami acting on ceilings of water channels

AU - Takabatake, Tomoyuki

AU - Oda, Yukinobu

AU - Ito, Kazunori

AU - Honda, Takahide

PY - 2016/1/1

Y1 - 2016/1/1

N2 - When tsunami enters a water channel of an industrial facility, the water surface inside the channel rises and uplift pressures act on the ceiling if it is reached by the water surface. In this study, magnitudes and characteristics of this uplift pressure are investigated both experimentally and numerically. The results show that (1) the uplift pressure comprises an initial impulsive pressure and a following more slowly varying pressure; (2) trapped air reduces the impulsive pressure, and thus attaching a vertical barrier to the ceiling could act as a countermeasure; and (3) the impulsive pressure can be evaluated approximately with conventional predictive methods and by appropriate numerical simulations.

AB - When tsunami enters a water channel of an industrial facility, the water surface inside the channel rises and uplift pressures act on the ceiling if it is reached by the water surface. In this study, magnitudes and characteristics of this uplift pressure are investigated both experimentally and numerically. The results show that (1) the uplift pressure comprises an initial impulsive pressure and a following more slowly varying pressure; (2) trapped air reduces the impulsive pressure, and thus attaching a vertical barrier to the ceiling could act as a countermeasure; and (3) the impulsive pressure can be evaluated approximately with conventional predictive methods and by appropriate numerical simulations.

KW - Impulsive pressure

KW - OpenFOAM

KW - Tsunami

KW - Uplift pressure

KW - Water intake/outfall

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M3 - Conference contribution

AN - SCOPUS:85028680338

VL - 35

BT - Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016

PB - American Society of Civil Engineers (ASCE)

T2 - 35th International Conference on Coastal Engineering, ICCE 2016

Y2 - 17 November 2016 through 20 November 2016

ER -

A study on uplift pressures of tsunami acting on ceilings of water channels

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ASJC Scopus subject areas

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