Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Response of Elevated Cylindrical Water Tank with Lead Rubber Bearing Isolation System
The frequency and severity of high-magnitude earthquakes are on the rise, resulting in significant human casualties and infrastructure damage worldwide. The land in India is also vulnerable to earthquakes to the extent of almost 60%. The primary purpose of elevated liquid storage tanks is to distribute drinking water, provide relief in the event of fires, and store water during catastrophic earthquakes. Under the influence of earthquakes, these structures need to be designed crack free. The utilization of seismic isolation is a proven and efficient approach for addressing various seismic design issues. By implementing a seismic base isolator, a structure can be shielded from ground movement, thereby reducing its susceptibility to earthquake damage. In this study, a nonlinear time history analysis was conducted using the structural analysis software SAP2000 to investigate the seismic response of water storage tanks both with and without base isolation. In the present study, base isolation is carried out by using a lead rubber bearing (LRB) isolator which is proportioned by adopting the existing design procedure developed for structures on plain ground. To evaluate the impact of ground motion fluctuations on the response of both fixed base and base-isolated structures, analysis has been conducted using three distinct past ground motions. Response parameters such as base shear, base moment, storey displacement, hoop stress, and bending moment on the tank wall are reported. Results indicate that the LRB isolation system can reduce various responses by 75–95%.
Seismic Response of Elevated Cylindrical Water Tank with Lead Rubber Bearing Isolation System
The frequency and severity of high-magnitude earthquakes are on the rise, resulting in significant human casualties and infrastructure damage worldwide. The land in India is also vulnerable to earthquakes to the extent of almost 60%. The primary purpose of elevated liquid storage tanks is to distribute drinking water, provide relief in the event of fires, and store water during catastrophic earthquakes. Under the influence of earthquakes, these structures need to be designed crack free. The utilization of seismic isolation is a proven and efficient approach for addressing various seismic design issues. By implementing a seismic base isolator, a structure can be shielded from ground movement, thereby reducing its susceptibility to earthquake damage. In this study, a nonlinear time history analysis was conducted using the structural analysis software SAP2000 to investigate the seismic response of water storage tanks both with and without base isolation. In the present study, base isolation is carried out by using a lead rubber bearing (LRB) isolator which is proportioned by adopting the existing design procedure developed for structures on plain ground. To evaluate the impact of ground motion fluctuations on the response of both fixed base and base-isolated structures, analysis has been conducted using three distinct past ground motions. Response parameters such as base shear, base moment, storey displacement, hoop stress, and bending moment on the tank wall are reported. Results indicate that the LRB isolation system can reduce various responses by 75–95%.
Seismic Response of Elevated Cylindrical Water Tank with Lead Rubber Bearing Isolation System
Lecture Notes in Civil Engineering
Jayalekshmi, B. R. (Herausgeber:in) / Rao, K. S. Nanjunda (Herausgeber:in) / Pavan, G. S. (Herausgeber:in) / Baby, Gino (Autor:in) / Joseph, Glory (Autor:in)
International Conference on Sustainable Infrastructure: Innovation, Opportunities and Challenges ; 2023 ; Mangalore, India
20.09.2024
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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