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Studies on Behavior of Structural and Nonstructural Components Subjected to Earthquake Hazard from a Sustainability Perspective

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Green Building".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 4119

Special Issue Editors

Prof. Dr. Bu-Seog Ju

E-Mail Website
Guest Editor
Department of Civil Engineering, KyungHee University, Yongin-si 17104, Republic of Korea
Interests: risk assessment of structural and nonstructural components (piping systems; flood defense structures; bridges; NPPs; hydroelectric power plants; performance-based design in earthquake engineering; the response of dynamic soil-foundation and fluid-structure interaction）
Prof. Dr. Shinyoung Kwag

E-Mail Website
Guest Editor
Department of Civil Environmental Engineering, Hanbat National University, Daejeon 34158, Korea
Interests: probabilistic risk assessment; uncertainty; building-piping interaction
Dr. Bub-Gyu Jeon

E-Mail Website
Guest Editor
Seismic Research and Test Center, Pusan National University, Yangsan-si 50612, Korea
Interests: experimental test; piping; sensitivity analysis

Special Issue Information

Dear Colleagues,

Since the 9.0-magnitude Fukushima earthquake in Japan on March 11th, 2011, many engineers have recognized the need to have structural and nonstructural components remain operational or functional under beyond-design-basis events in order to mitigate earthquake damage. The nonstructural components, i.e., piping system, electrical cabinets, electrical component/equipment, etc., provide sustainable energies such as steam, electrical power, and water in nuclear and nonnuclear power plants or critical building structures. In addition, such equipment can cause unexpected nonstructural earthquake damages related to significant economic loss and suspension of operation during and after a strong ground motion. Therefore, this Special Issue in the Journal of Sustainability welcomes novel state-of-the-art numerical simulations such as the high fidelity finite element analysis and the experimental tests in accordance with innovative applications in the area of the piping system, electrical cabinets, electrical component/equipment, etc., of nuclear and nonnuclear power plants and critical facility structures.  Topics or categories for this Special Issue include, but are not limited to, the following:

  • Building–piping (or cabinet) interaction;
  • Mitigation of earthquake damage of structural or nonstructural components under beyond-design-basis events;
  • Fragility analysis based on extreme events;
  • Soil–structure interaction of nuclear or nonnuclear power plants;
  • Seismic performance of electrical equipment (cabinet system) based on shaking table test;
  • Strengthening or retrofit practices for emergency preparedness capabilities of critical facilities structures subjected to a strong ground motion;
  • High fidelity simulation FE models of structural and nonstructural components;
  • Small or large-scale piping experimental test analysis in nuclear or nonnuclear power plants;
  • Sensitivity or uncertainty analysis related to the probability of system failure.

This Special Issue deals with such topics above with the aim to contribute to the sustainable energy supplies in nuclear/nonnuclear power plants or critical facilities structures.

Prof. Dr. Bu-Seog Ju
Prof. Dr. Shinyoung Kwag
Dr. Bub-Gyu Jeon
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

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

  • nonstructural components (piping or electrical cabinet)
  • fragility
  • building–piping (or cabinet) interaction
  • byeond-design-basis events
  • soil–structure interaction
  • sensitivity analysis
  • uncertaintiy
  • high fidelity simulation FE model

Published Papers (3 papers)

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Research

15 pages, 5221 KiB  
Article
Application of Seismic Fragility of Buried Piping Systems with Bellows Expansion Joints
by Joon-Il Ryu, Bub-Gyu Jeon, Ho-Young Son and Bu-Seog Ju
Sustainability 2022, 14(24), 16756; https://doi.org/10.3390/su142416756 - 14 Dec 2022
Viewed by 1268
Abstract
Bellows expansion joints are known to have a large displacement capacity and can thus be potentially used to improve the seismic performance of buried piping systems. However, there are no guidelines on the installation of bellows expansion joints for the seismic performance improvement [...] Read more.
Bellows expansion joints are known to have a large displacement capacity and can thus be potentially used to improve the seismic performance of buried piping systems. However, there are no guidelines on the installation of bellows expansion joints for the seismic performance improvement of buried piping systems. Furthermore, there are very few studies on the seismic performance of buried piping systems with bellows expansion joints. In this study, therefore, we performed seismic fragility analysis according to the installation conditions to obtain basic data for the installation guidelines of bellows expansion joints. Therefore, in this study, an experimental test was performed on bellows expansion joints considering the characteristics of earthquake loading conditions, and a 3D finite element (FE) model using the ABAQUS platform was developed and validated based on the experimental results. This model was verified by comparing the force-displacement relationship and energy dissipation. Leakage occurred at a displacement of 113.6 mm in the experiment, and the FE analysis result was also applied up to the same displacement. In the case of energy dissipation, an error between the FE model and experimental result was determined not to be significant. However, the appearance of such physical performance errors is due to the manufacturing errors resulting from the bellows forming process and the variability of material properties. Finally, seismic fragility analysis of buried pipeline systems with bellows expansion joints was performed. In addition, the following cases were used for analysis according to whether bellows were applied or not: (1) without a bellows expansion joints; (2) with a single bellows expansion joint; and (3) with two bellows expansion joints. In conclusion, it was found that the seismic performance of the buried pipeline system was improved when bellows were applied. However, the effect of the seismic fragility curve according to the increase in the number of bellows was insignificant. Full article
(This article belongs to the Special Issue Studies on Behavior of Structural and Nonstructural Components Subjected to Earthquake Hazard from a Sustainability Perspective)
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15 pages, 21214 KiB  
Article
An Experimental Study on Seismic Performance Evaluation of Multi-Ply Bellows Type Expansion Joint for Piping Systems
by Bub-Gyu Jeon, Sung-Wan Kim, Da-Woon Yun, Bu-Seog Ju and Ho-Young Son
Sustainability 2022, 14(22), 14777; https://doi.org/10.3390/su142214777 - 09 Nov 2022
Cited by 2 | Viewed by 1190
Abstract
Piping systems are a representative social infrastructure to provide oil, gas, and water. Damage to piping systems may cause serious consequences, such as fire, water outage, and environmental pollution. Therefore, piping systems need to be protected from natural disasters, such as earthquakes. Earthquakes [...] Read more.
Piping systems are a representative social infrastructure to provide oil, gas, and water. Damage to piping systems may cause serious consequences, such as fire, water outage, and environmental pollution. Therefore, piping systems need to be protected from natural disasters, such as earthquakes. Earthquakes may cause deformation that exceeds piping design criteria. For example, large relative displacements and liquefaction of the ground resulting in loss of strength and ground subsidence, and the side-sway of primary structures subjected to a strong ground motion may cause critical damage to piping systems. Therefore, expansion joints to maintain flexibility can be applied to locations where excessive deformation is expected to improve the seismic performance of piping systems. Metal bellows, a type of expansion joints, are flexible, so they are highly durable against deformation and fatigue loads. This indicates that metal bellows can be used as seismic separation joints for piping. In this study, experimental research was conducted to analyze the seismic performance of multi-ply bellows type expansion joints, a type of metal bellows. Monotonic loading tests and cyclic loading tests were conducted on 2-ply bellows and 3-ply bellows, and the results were compared. In the cyclic loading tests, multi-step increasing amplitude cyclic loading, which used the displacement history amplified in stages, and constant amplitude cycling loading with various magnitudes were considered. The test results showed no significant difference in bending performance for monotonic loading between the two types of multi-ply bellows. The 3-ply bellows, however, showed higher performance for low-cycle fatigue than 2-ply bellows. Full article
(This article belongs to the Special Issue Studies on Behavior of Structural and Nonstructural Components Subjected to Earthquake Hazard from a Sustainability Perspective)
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15 pages, 4696 KiB  
Article
Seismic Fragility Evaluation of Main Steam Piping of Isolated APR1400 NPP Considering the Actual Failure Mode
by Bub-Gyu Jeon, Sung-Wan Kim, Da-Woon Yun, Daegi Hahm and Seunghyun Eem
Sustainability 2022, 14(14), 8315; https://doi.org/10.3390/su14148315 - 07 Jul 2022
Cited by 2 | Viewed by 1173
Abstract
An isolation system installed in a nuclear power plant (NPP) could increase seismic safety during seismic events. On the other hand, a more significant relative displacement may occur due to the isolation system. The seismic risk could be increased in the case of [...] Read more.
An isolation system installed in a nuclear power plant (NPP) could increase seismic safety during seismic events. On the other hand, a more significant relative displacement may occur due to the isolation system. The seismic risk could be increased in the case of an interface piping system that connects isolated and nonisolated structures. Therefore, it is necessary to consider the piping systems when evaluating the safety of isolated-NPPs. This study performed seismic fragility analysis with isolated APR1400 nuclear power plants with the main steam piping. The main steam piping is the interface pipe connecting the isolated auxiliary building and the turbine building. The failure mode for seismic fragility analysis was defined as cracks caused by leakage. The experimental and numerical analysis results quantified the leak-through crack point as a damage index. The seismic fragility curves are suggested based on peak ground acceleration and the relative displacement between the isolated and nonisolated buildings. Full article
(This article belongs to the Special Issue Studies on Behavior of Structural and Nonstructural Components Subjected to Earthquake Hazard from a Sustainability Perspective)
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