In a groundbreaking study published in the Journal of Sustainable Construction Materials and Technologies, researchers have tackled the pressing challenge of ensuring the seismic safety of Liquid Natural Gas (LNG) storage tanks. With the ever-present threat of earthquakes, particularly near the North Anatolian Fault in Türkiye, the need for innovative retrofitting solutions has never been more urgent.
Lead author Mehmet Fatih Altan from ISTANBUL AREL UNIVERSITY, FACULTY OF ENGINEERING-ARCHITECTURE emphasizes the significance of this research, stating, “Our findings provide a proactive approach to seismic resilience, balancing safety and economic viability for LNG operations.” The study highlights how existing LNG tanks may not meet current seismic performance standards, posing risks not just to infrastructure but also to the broader energy supply chain.
The research team conducted a comprehensive seismic evaluation of an LNG tank, revealing critical inadequacies in its design. To address these issues, they proposed a dual strategy: enhancing the stiffness of lateral force-resisting members and integrating friction dampers. This innovative approach aims to reduce the potential for structural damage during earthquakes while minimizing operational disruptions.
One of the standout challenges in this field is the unique dynamic behavior of LNG, particularly its sloshing effect during seismic events. Altan explains, “Understanding fluid-structure interaction is key to accurately modeling how these tanks will behave under stress. Our transient analyses have shown that our retrofitting measures can significantly improve performance.”
The implications of this research extend beyond mere safety; they also carry substantial commercial benefits for the construction sector. By avoiding extensive demolition and reconstruction typically associated with retrofitting, companies can save on costs and time, thereby enhancing project feasibility. This could lead to a paradigm shift in how LNG facilities are designed and maintained, making them more resilient and economically sustainable.
As the construction industry increasingly prioritizes earthquake resilience, studies like this one pave the way for future developments. The integration of advanced damping mechanisms and a focus on innovative retrofitting strategies could redefine standards across the sector. The research not only contributes to the safety of LNG storage but also sets a precedent for other critical infrastructure, reinforcing the importance of proactive measures in disaster-prone areas.
This study underscores the vital intersection of engineering, safety, and economic considerations in the construction landscape, marking a significant step forward in the quest for resilient infrastructure in seismic zones.