Published: Građevinar 70 (2018) 3
Paper type: Scientific paper-Preliminary report
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Experimental modal investigation of scaled minaret embedded in different soil types
Abstract
The influence of various types of foundation soil on dynamic behaviour of reinforced-concrete minarets is analysed in the paper. A 1:20 RC scale model was constructed in laboratory for the testing. The gravel, sand, and clay-gravel mixture, were used as foundation soil types to determine differences in dynamic behaviour as related to the type of foundation soil. Experimental measurements were conducted using the Operational Modal Analysis (OMA), taking into account ambient vibrations due to wind action and traffic. Test results show that the dynamic behaviour of RC minaret is strongly influenced by the type of foundation soil.
Keywordsoperational modal analysis, Reinforced concrete minaret, enhanced frequency domain decomposition, ambient vibrations