Title of article :
An Experimental Study of Insufficient Free Board Effect on Fixed-Roof Cylindrical Tank Seismic Loads
Author/Authors :
Moosapoor, Mojtaba International Institute of Earthquake Engineering and Seismology (IIEES) - Tehran - Iran , Yousefi, Mohammad Mehdi International Institute of Earthquake Engineering and Seismology (IIEES) - Tehran - Iran , Goudarzi, Mohammad Ali Associate Professor of Structural Engineering Research Center - International Institute of Earthquake Engineering and Seismology (IIEES) - Tehran - Iran
Abstract :
Cylindrical tanks are fundamental structures used for the storage of liquids.
Sloshing caused by earthquakes in tanks without enough freeboard leads to a
liquid impact on the roof of tanks. This study aims to explore the base shear
variation due to insufficient freeboard using experimental and numerical methods.
The experimental tests are performed using a cylindrical liquid tank excited by
various harmonic loads. The impact ofsome parameters such as the water height to
tank radius ratio and freeboard on base shear force are investigated by conducting
90 tests. Impulsive and convective masses for simplified mass-spring are modified
in numerical models so that experimental and numerical base shear results
are consistent. Finally, a simple analytical solution to estimate the reduction of
convective mass due to insufficient freeboard is suggested and validated using
experimental results
Keywords :
Liquid Tanks , Strengthening , Seismic Behavior , Numerical Methods
Journal title :
Journal of Seismology and Earthquake Engineering (JSEE)
