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Erschienen in:
2024 | OriginalPaper | Buchkapitel
Controlling Earthquake Induced Structural Vibration with Slope Bottom Tuned Liquid Damper
verfasst von : G. R. Patil, K. D. Singh, B. Nanda
Erschienen in: Recent Developments in Structural Engineering, Volume 1
Verlag: Springer Nature Singapore
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Abstract
This study attempts to investigate the performance of a slope bottom tuned liquid damper (TLD) for mitigating the earthquake response of reinforced concrete (RC) framed structure. Time history analysis of a 10-story RC framed structure, with installation of a flat bottom rectangular TLD, and a slope bottom (dual triangular case) rectangular TLD has been performed. Structure-TLD system is analysed for input of five different types of earthquake time histories. The important findings of study are being presented in terms of frequency ratio, liquid mass reduction and response reduction due to slope at TLD’s bottom. The analysis is being performed for TLD, considering dual triangular slope at the base, with slope angles varying from 0 to 25°. Investigations show that frequency ratio of TLD reduced with rise in dual triangular slope at TLD’s bottom. The reduction in mass of liquid with slope is being observed to be linear, and an optimum slope angle for the reduction in structural response was observed to be around 20°.