DESIGNING ISOLATOR INSTALLATION SYSTEM UNDER THE WALL OF LIQUID STORAGE REPOSITORY WITH THE PURPOSE OF REDUCING THE MAIN COMPONENTS OF SEISMIC FORCES AND PREVENTING REPOSITORY DESTRUCTION DURING EARTHQUAKE

摘要

Liquid storage tanks include important structures in vital artery networks which their destruction during earthquake will lead to undesired economical, environmental and safety consequences. Moreover, liquid storage tanks will play a major role in meeting essential requirements of people after earthquake. Therefore, applying some methods for reducing seismic response of liquid storage tanks is considered as a critical action to control the damages caused by the earthquake. We have been able to improve the seismic behavior of tanks by changing the layout of isolators. As it is obvious in the figures, in this design, tank floor is installed without rigid concrete bed, and around the tank a concrete ring as thick as 1 meter is created. This ring is used for installing and joining the isolators.