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作者:

Zhao, Mi (Zhao, Mi.) | Su, Chengkun (Su, Chengkun.) | Wang, Piguang (Wang, Piguang.) (学者:王丕光) | Song, Xiehong (Song, Xiehong.) | Zhang, Chao (Zhang, Chao.)

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EI Scopus SCIE

摘要:

The coastal structures, such as breakwaters and reefs, are usually vulnerable to the strong earthquake waves propagating through their bedrock foundation. This study proposes a 2D non-water substructure model in time domain for breakwater-water-bedrock (layered) (BWB) system, where the fluid-solid dynamic interaction is embodied by added mass and the equivalent seismic loading calculated from ocean free-field (without structure) accomplishes the inclined incidence of P or SV wave with any angle. Besides, the cutoff boundaries of the fluid are applied exact absorbing boundary conditions (ABCs) to simulate the far-field of water while the viscous -spring ABCs are employed to simulate the far-field of bedrock. Then, the accuracy of substructure method is verified by some numerical examples. However, the exact added mass matrix is fully populated and not easy to use for general software. Therefore, the simplified added mass models for water-bedrock system, water-structure system and BWB system are furtherly developed, including the relevant simplified formulas fitted by curve fitting method. Additionally, the numerical results indicate the good effectiveness of proposed model.

关键词:

Simplified formula Substructure method Fluid -solid dynamic interaction Added mass Obliquely incident earthquake

作者机构:

  • [ 1 ] [Zhao, Mi]Beijing Univ Technol, Key Lab Urban Secur, Disaster Engn Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Su, Chengkun]Beijing Univ Technol, Key Lab Urban Secur, Disaster Engn Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Piguang]Beijing Univ Technol, Key Lab Urban Secur, Disaster Engn Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Song, Xiehong]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 5 ] [Zhang, Chao]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China

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来源 :

OCEAN ENGINEERING

ISSN: 0029-8018

年份: 2022

卷: 262

5 . 0

JCR@2022

5 . 0 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:49

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 5

SCOPUS被引频次: 5

ESI高被引论文在榜: 0 展开所有

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