Seismic Resilience eva‎luation of urban Water Distribution System In part of Tehran

3/13/2024 12:00:00 AM

The occurrence of various disasters (earthquakes, floods, fires, etc.) in the world with different magnitudes and geographical scales, as well as the damages and consequences caused by them, changed the view of the world community and especially the engineering community towards the way of designing structures and infrastructures from the attitude of design based on performance to the attitude of design based on resilience. In this new attitude, various concepts such as the mutual effects of structural and infrastructure damage, as well as other concepts such as social concepts, have entered the field of design. The past disasters remind us that it is not possible to prevent all the consequences of these disasters and we can only adapt to them and restore the lost performance to an acceptable level in the shortest possible time after the disaster. This thesis examines and analyzes the seismic resilience of a part of the urban water network of Tehran in Mesgarabad area. After obtaining the data related to the water pipelines from the Tehran Province Water and Wastewater, first a software model was created using the stress analysis software of piping networks with the brand name CAESAR II. Then, by selecting 10 seismic records from earthquakes around the world and extracting them from the PEER site, seismic loads were dynamically applied to the software model. After the analysis of the model, The damage caused to the pipelines was obtained, and then based on the HAZUS method, the amount of damage was converted into loss of serviceability, and finally, the resilience index as well as the number of days needed to complete the repair operation, taking into account the number of available repair crews, was obtained. The results indicate a 58% loss in the serviceability of the water distribution network in the case study, And considering 30 repair crews, it is possible to complete the network damage repair operation in about 10 days, and the value of resilience index for a period of 14 days is approximately equal to 79%.

تاب آوري لرزه اي , شبكه توزيع آب , شاخص تاب آوري , نرم افزار تحليل تنش پايپينگ CAESAR II , شريان هاي حياتي , بازتواني

Seismic Resilience , Water distribution network , Resilience index , CAESAR II piping stress analysis , Liflines , Recovery

Amirreza Keyghobadi Azar

Morteza Raissi Dehkordi