METHOD FOR ESTIMATING TSUNAMI FRAGILITY FUNCTIONS USING PROBABILITY DENSITY FUNCTIONS OF HYDRODYNAMIC FORCES AND STRUCTURAL DURABILITIES
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- IZUMIYA Takashi
- Niigata University
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- YAMAMORI Hayato
- Niigata University
Bibliographic Information
- Other Title
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- 津波波力および建物耐力の確率分布を考慮した建物被害確率予測法に関する研究
- ツナミハリョク オヨビ タテモノ タイリョク ノ カクリツ ブンプ オ コウリョ シタ タテモノ ヒガイ カクリツ ヨソクホウ ニ カンスル ケンキュウ
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Abstract
The tsunami forces acting on a house were evaluated theoretically based on momentum conservation law. The distributions of tsunami inundation depth were investigated by using inundation flow data of the 2011 off the Pacific Coast of Tohoku Earthquake tsunami and found to be log-normal distribution with two parameters. The tsunami force was estimated using the formula proposed by present study and existing laboratory and field data. When the probability density functions of hydrodynamic force and structural durability are two-parameter log-normal distribution, the probability of damaged houses was estimated theoretically. The fragility functions estimated were compared with observed data of the Tohoku Earthquake tsunami and show a good agreement with them.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 71 (2), I_931-I_936, 2015
Japan Society of Civil Engineers
