Morteza MOEINI - PhD Student, International Institute of Earthquake Engineering and Seismology (IIEES),Tehran, Iran
Naghdali HOSEINZADEH - Associated professor, International Institute of Earthquake Engineering and Seismology (IIEES),Tehran, Iran

In this article a review on the various pressure distribution procedures on the ring baffle in Storage tanks is investigated. In this research 5 most common procedures in determining pressure loads on ring baffles is investigated. Radial and circumferential distribution of pressure on ring baffles in a 284 cm tank is tested. Some effective parameters on pressure distribution are: nondimensional liquid velocity UmaxT/2W, liquid amplitude E/r, baffle depth d/r, radial position on the baffle y/W,circumferential position , and baffle spacing s/W.The dependence of the pressure loads on each of these variables is illustrated with representative data obtained with one and two baffles mounted in the tank. These data are compared with available theories where applicable. Results suggest that pressure distributions can be determined from available theories for the design of single and multiple baffle configurations.

Ring baffle, Pressure Distribution, Storage Tanks, Liquid Velocity, Liquid Amplitude.