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

Waseda Research Institute for Science and Engineering

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

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.

Original language	English
Title of host publication	Proceedings of the 35th International Conference on Coastal Engineering, ICCE 2016
Publisher	American Society of Civil Engineers (ASCE)
Volume	35
ISBN (Electronic)	9780989661133
Publication status	Published - 2016 Jan 1
Event	35th International Conference on Coastal Engineering, ICCE 2016 - Antalya, Turkey Duration: 2016 Nov 17 → 2016 Nov 20

Other

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

Keywords

Impulsive pressure
OpenFOAM
Tsunami
Uplift pressure
Water intake/outfall

ASJC Scopus subject areas

Civil and Structural Engineering
Ocean Engineering
Oceanography

Cite this

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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",

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year = "2016",

month = jan,

day = "1",

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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TY - GEN

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

Abstract

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Keywords

ASJC Scopus subject areas

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