Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Fragility of Fixed Base and Base Isolated Ground Supported Liquid Storage Tanks Considering Soil–Structure Interaction
Seismic performance of cylindrical ground supported liquid storage tanks with and without base isolation system is investigated. Further, the effect of soil–structure interaction is evaluated on the seismic performance of ground supported tanks. The tank structure is considered isolated with lead rubber bearing which follows a bilinear hysteretic force–deformation behavior under lateral loading. Herein, two different geometries (broad and slender) of fixed base and base isolated ground supported tanks are analyzed, and corresponding seismic fragility curves are developed for different base conditions (without and with soil–structure interaction, considering different soil types). The study shows that the soil–structure interaction significantly affects the seismic performance of fixed base and base isolated tanks, and in certain cases, neglecting its effect can underestimate the seismic fragility of ground supported tank. Further, the tank structure provided with base isolation system may not follow the trend of response shown by the system without isolation under different soil conditions. The general perception of response reduction with smaller soil stiffness, in order to neglect the soil–structure interaction effects, may not always hold good. The response of base isolated tank is greatly affected by the soil type over the possible range of seismic intensities.
Seismic Fragility of Fixed Base and Base Isolated Ground Supported Liquid Storage Tanks Considering Soil–Structure Interaction
Seismic performance of cylindrical ground supported liquid storage tanks with and without base isolation system is investigated. Further, the effect of soil–structure interaction is evaluated on the seismic performance of ground supported tanks. The tank structure is considered isolated with lead rubber bearing which follows a bilinear hysteretic force–deformation behavior under lateral loading. Herein, two different geometries (broad and slender) of fixed base and base isolated ground supported tanks are analyzed, and corresponding seismic fragility curves are developed for different base conditions (without and with soil–structure interaction, considering different soil types). The study shows that the soil–structure interaction significantly affects the seismic performance of fixed base and base isolated tanks, and in certain cases, neglecting its effect can underestimate the seismic fragility of ground supported tank. Further, the tank structure provided with base isolation system may not follow the trend of response shown by the system without isolation under different soil conditions. The general perception of response reduction with smaller soil stiffness, in order to neglect the soil–structure interaction effects, may not always hold good. The response of base isolated tank is greatly affected by the soil type over the possible range of seismic intensities.
Seismic Fragility of Fixed Base and Base Isolated Ground Supported Liquid Storage Tanks Considering Soil–Structure Interaction
J. Inst. Eng. India Ser. A
Kumar, Hitesh (Autor:in) / Saha, Sandip Kumar (Autor:in)
Journal of The Institution of Engineers (India): Series A ; 102 ; 829-839
01.09.2021
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| Taylor & Francis Verlag | 2022
| British Library Online Contents | 2004