Authors : Ehsan Shad, Rouhollah Amirabadi Mahdi Sharifi and Ahmad Ghasemi
Abstract: One of the latest issues in field of marine structures of the country (Iran) is to provide a simple and economic method to repair, improve and retrofit such structures to enhance their seismic resistance. Developing fragility curves has been conducted using non-linear analysis methods, particularly Incremental Dynamic Analysis (IDA) method, so far. Within the recent years, an alternate method called “Endurance Time” (ET) has been proposed to substitute the IDA method. In this study, East Pile-Deck Wharf of Imam Khomeini Port which has a long period has been modeled in three different states including construction (primary) state, damaged state and repaired or improved state and then each state was analyzed using the two methods of IDA and ET. Then, based on results obtained from these two analyses, fragility curves were depicted based on the fully-probabilistic framework provided by pacific earthquake engineering research center to estimate probability of damage occurrence. Findings indicated that regarding considerable time required for implementation of IDA analysis, ET method can be considered as an appropriate and quick alternate method for developing fragility curves.
Ehsan Shad, Rouhollah Amirabadi Mahdi Sharifi and Ahmad Ghasemi, 2017. Developing Fragility Curves Based on Endurance Time Method in Comparison with IDA Method, Case Study: East Pile-Deck Wharf of Imam Khomeini Port. Journal of Engineering and Applied Sciences, 12: 9046-9055.