An Experimental Study of Insufficient Free Board Effect on Fixed-Roof Cylindrical Tank Seismic Loads
نویسندگان
1 International Institute of Earthquake Engineering and Seismology
2 Babol Noshirvani University of Technology (BUT)
3 International Institute of Earthquake Engineering and Seismology
doi
10.48303/jsee.2019.241706چکیده
Cylindrical tanks are fundamental structures used for the storage of liquids.Sloshing caused by earthquakes in tanks without enough freeboard leads to aliquid impact on the roof of tanks. This study aims to explore the base shearvariation due to insufficient freeboard using experimental and numerical methods.The experimental tests are performed using a cylindrical liquid tank excited byvarious harmonic loads. The impact of some parameters such as the water height totank radius ratio and freeboard on base shear force are investigated by conducting90 tests. Impulsive and convective masses for simplified mass-spring are modifiedin numerical models so that experimental and numerical base shear resultsare consistent. Finally, a simple analytical solution to estimate the reduction ofconvective mass due to insufficient freeboard is suggested and validated usingexperimental results.
