Soil-structure interaction effects for laterally excited liquid storage tanks

摘要: A comprehensive study is made of the effects soil-structure interaction on response liquid containing, upright, circular cylindrical tanks subjected to a horizontal component ground shaking. simple, physically motivated method analysis employed which elucidates and relative importance principal actions involved. Both impulsive convective are examined. The interrelationship tank responses rocking foundation established, well known mechanical model for laterally excited, rigid supported non-deformable medium generalized permit consideration flexibilities base rocking. Critical evaluated harmonic seismic excitations over wide ranges proportions soil stiffnesses, results presented in form convenient use practical applications. In addition precise analysis, an approximate, hand-computation with primary parameters may be readily. latter approach provided by modifying natural frequency damping tank-liquid system evaluating its prescribed free-field motion considering rigidly at base. requisite modifications determined from information herein. It shown that reduce significantly components but it has negligible effect components.