A STUDY ON SLOSHING BEHAVIOR OF FLOATING-ROOF-TANK

-THE EXPERIMENT OF VIBRATION WITH φ4000 TANK MODEL-

Abstract

Liquid sloshing of oil storage tanks caused by Tokachi-Oki earthquake in 2003 gave severe damage to oil tanks in Tomakomai area. The purpose of our study is to verify sloshing behavior of floating roof tank and finally find out the method of sloshing damping. In this paper, we propose a vibration test by using φ4000 tank model and confirm sloshing behavior of floating roof tank. From these results, we have come to the conclusion that the first mode of sloshing may cause the higher modes and have significant influence on the deformation of single deck type floating roof tank.