Application of Seismic Fragility of Buried Piping Systems with Bellows Expansion Joints

Joon-Il Ryu, Bub-Gyu Jeon, Ho-Young Son () and Bu-Seog Ju ()
Additional contact information
Joon-Il Ryu: Department of Civil Engineering, Kyung Hee University, Yongin-si 17104, Republic of Korea
Bub-Gyu Jeon: Seismic Research and Test Center, Pusan National University, Yangsan-si 50612, Republic of Korea
Ho-Young Son: Department of Civil Engineering, Kyung Hee University, Yongin-si 17104, Republic of Korea
Bu-Seog Ju: Department of Civil Engineering, Kyung Hee University, Yongin-si 17104, Republic of Korea

Sustainability, 2022, vol. 14, issue 24, 1-15

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 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.

Keywords: buried pipeline system; bellows expansion joint; cyclic loading test; FE model; seismic fragility analysis (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/24/16756/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/24/16756/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:24:p:16756-:d:1003074

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().