Modeling of Tsunami Fluid Forces Acting on a Bridge Deck
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- SHOJI Gaku
- Faculty of Engineering, Information and Systems, University of Tsukuba
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- SHIGIHARA Yoshinori
- Department of Civil and Environmental Engineering, National Defense Academy of Japan
Bibliographic Information
- Other Title
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- 橋桁に作用する津波波力のモデル化
Description
Based on analysis of data from hydraulic experiments for bridge deck models with or without overhangs, tsunami fluid forces acting on a bridge deck subjected to surging waves on dry bed were idealized by analyzing the relations between tsunami fluid forces and four dominant parameters: tsunami inundation depth, increase rate of tsunami inundation depth, tsunami velocity, and wave celerity. Normalized horizontal pressure acting on a bridge deck without overhangs was 1.16 times higher than those with overhangs in the range of Fr =1.80 which is a higher Froude number. Normalized vertical pressure is classified into five categories from μ1 to μ5 in the time series: μ1 occurred only for the model with overhangs, μ2 without overhangs showed higher values than μ2 with overhangs in the range of less than Fr =1.50, μ3 without overhangs varied from negative to positive values in the range of Fr =1.00 to Fr =1.80, μ4 and μ5 which mean vertical pressure on bridge deck in quasi stationary stage were nearly close to both models with or without overhangs.
Journal
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- Journal of Japan Association for Earthquake Engineering
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Journal of Japan Association for Earthquake Engineering 16 (8), 8_88-8_109, 2016
JAPAN ASSOCIATION FOR EARTHQUAKE ENGINEERING
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Keywords
Details 詳細情報について
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- CRID
- 1390282680334669312
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- NII Article ID
- 130005166297
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- ISSN
- 18846246
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed