Vulnerability assessment of the concrete tanks storage at natural hazards

In this paper, the concept of vulnerability to natural hazards is used to predict the average level of damage and aging that may occur on a large scale in a water storage tank. To estimate the state of these storage tanks, we develop in this study a diagnosis method based on the vulnerability index (I-v), taking into account all affecting; environmental, structural and functional factors. From this index, we propose a classification scale of the tanks in three levels of behaviour, which are associated with different colours. The first level includes tanks with good behaviour (green), the second includes tanks with average behaviour (orange) and the third concerns the tanks with bad behaviour (red).