Seismic Analysis and Design of Ocean and Underground Structures

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Marine Science and Engineering".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1102

Special Issue Editors


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Guest Editor
College of Construction Engineering, Dalian University of Technology, Dalian, China
Interests: structural seismic analysis; fluid–solid interaction analysis; soil–structure interaction analysis; artificial boundary methods; applied and computational mathematics

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Guest Editor
School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing, China
Interests: underground structure; tunnel seismic response; numerical simulation method; analytical method; seismic resistance
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Guest Editor
Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China
Interests: offshore structure seismic; fluid–structure interaction; pile-soil interaction
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Special Issue Information

Dear Colleagues,

Advancements in seismic analysis and design techniques for ocean and underground structures have become imperative in the face of evolving challenges in structural engineering. This Special Issue aims to provide a platform for the dissemination of novel ideas and empirical findings in the realm of seismic analysis and design, focusing on the safety of structures situated in oceanic and subterranean environments.

Relevant areas encompass a broad spectrum, including innovative analytical approaches, state-of-the-art numerical simulations, and practical design solutions. Contributions are sought in the fields of structural dynamics, geotechnical engineering, and offshore engineering, with a focus on addressing the unique challenges posed by oceanic and underground settings. Topics will span offshore platforms, reef engineering, submarine pipelines, underground tunnels, and other subterranean structures.

Potential fields include, but are not limited to, the following:

  • Advanced modeling and simulation techniques of ocean and underground structures;
  • Structural health monitoring for ocean and underground structures;
  • Innovative materials and construction methods for seismic resilience;
  • Seismic risk assessment and mitigation strategies specific to marine and subsurface environments;
  • Multi-hazard risk assessment for ocean structures.

Dr. Xin Bao
Dr. Jingqi Huang
Prof. Dr. Piguang Wang
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • structural seismic analysis
  • ocean engineering
  • underground structure
  • offshore engineering
  • geotechnical engineering
  • seismic resilience of structures

Published Papers (2 papers)

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Research

17 pages, 4159 KiB  
Article
Numerical Simulation of a Submerged Floating Tunnel: Validation and Analysis
by Hao Li, Xiaohui Cheng and Hua Pan
Appl. Sci. 2024, 14(9), 3589; https://doi.org/10.3390/app14093589 - 24 Apr 2024
Viewed by 219
Abstract
The dynamic response analysis of submerged floating tunnels (SFTs) under seismic action is a complex two-way fluid–structure coupling problem that requires expertise in structural dynamics, fluid mechanics, and advanced computational methods. The coupled Eulerian–Lagrangian (CEL) method is a promising method for solving fluid–structure [...] Read more.
The dynamic response analysis of submerged floating tunnels (SFTs) under seismic action is a complex two-way fluid–structure coupling problem that requires expertise in structural dynamics, fluid mechanics, and advanced computational methods. The coupled Eulerian–Lagrangian (CEL) method is a promising method for solving fluid–structure interaction problems, but its application to SFTs is not well established. Therefore, it is crucial to verify the accuracy and reliability of the CEL method in fluid–structure coupling simulations. This study verified the applicability of the CEL method for simulating one-way and two-way fluid–structure coupling cylindrical flow problems, and then applied the CEL method for the analysis of a shaking table test of a model SFT. A comparison of results obtained with the CEL method with those obtained in a previous indoor model test of an SFT demonstrates the agreement between the results of the CEL method and the overall trend of the experimental results, indicating the reliability of the method for the seismic analysis of SFTs. Moreover, the analysis of the dynamic response characteristics of SFTs under seismic conditions provides data support and a technological means for the seismic design of SFTs. Full article
(This article belongs to the Special Issue Seismic Analysis and Design of Ocean and Underground Structures)
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26 pages, 11040 KiB  
Article
A Dynamic Analysis Method of Liquid-Filled Containers Considering the Fluid–Structure Interaction
by Xibing Fang, Xin Bao, Fengjiang Yue and Qiyuan Zhao
Appl. Sci. 2024, 14(7), 2688; https://doi.org/10.3390/app14072688 - 22 Mar 2024
Viewed by 427
Abstract
Based on acoustic fluid elements, a dynamic analysis of liquid sloshing modes and liquid-filled containers was undertaken, considering the effect of fluid–structure interactions (FSIs). The liquid sloshing modes in two-dimensional (2D) and three-dimensional (3D) containers were analyzed, and the results were compared with [...] Read more.
Based on acoustic fluid elements, a dynamic analysis of liquid sloshing modes and liquid-filled containers was undertaken, considering the effect of fluid–structure interactions (FSIs). The liquid sloshing modes in two-dimensional (2D) and three-dimensional (3D) containers were analyzed, and the results were compared with liquid sloshing modes measured in tests and theoretically calculated modes. This finding thus verifies the correctness of the simulation method based on acoustic fluid elements. Cylindrical liquid-filled containers with different water levels were subjected to a modal analysis and dynamic and time-history analysis. The results show that the finite element analysis (FEA) based on acoustic fluid elements can accurately simulate liquid sloshing modes in liquid-filled containers, as well as the vibration characteristics of these containers with different liquid levels. The vibration frequency of liquid-filled containers decreases with rising liquid levels. The liquid level significantly affects the distribution of the maximum displacement, maximum acceleration, and maximum von Mises stress on the sidewall of liquid-filled containers. Numerical simulations based on acoustic fluid elements provide an effective and reliable method for dynamic analysis of liquid-filled containers considering the effect of FSIs. Full article
(This article belongs to the Special Issue Seismic Analysis and Design of Ocean and Underground Structures)
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