Experimental investigation on elevated water tanks with base isolation – response spectrum approach

Abstract

Elevated water tanks in an empty condition, though not important in structural design, becomes an important problem in seismic design. The objective of the present research is to investigate the elevated water tanks in empty and in filled conditions and to emphasize the importance of seismic response. Four elevated tanks with various parameters are selected for seismic analysis with the base isolation technique. It is found out that empty tanks are highly vulnerable to earthquake effects, whereas filled tanks can be mitigated by providing base isolation. A simple experimental investigation has also been carried out to validate the analytical results.

Seismic Performance Evaluation and Analysis of Vertical Hydrogen Storage Vessels Based on Shaking Table Testing

“…The goal of seismic performance validation for such facilities extends beyond ensuring structural integrity: it also aims to confirm the sustained functionality of systems in the aftermath of an earthquake. While the former can be verified through testing and analytical methods, the latter is commonly known to be efficiently validated through testing procedures [15][16][17]. In March 2019, the Republic of Korea revised its Architectural Seismic Design Standards (KDS 41 17 00) [18], specifying the requirement to substantiate the seismic performance of key non-structural elements for which functionality must be maintained post-earthquake.…”

Effects of innovative reinforced concrete slit shaft configuration on seismic performance of elevated water tanks

“…That transfers the structure into a lower frequency range, where the seismic energy acting on the structure exceeds that of resonance. However, when it comes to EWTs with tall shafts, the possibility of maintaining a fixed position is uncertain because of the concentration of mass at the top 19 .…”