Fragility curve development of highway bridges using probabilistic evaluation (case study: Tehran City)

Seismic fragility analysis of bridges can be used to identify the probability different damage states under earthquake hazards. This study aims generate curve highway in Tehran, Iran, where these curves are not provided yet. To derive new curves, from studies all around world has been classified into categories, based on their structural designs, bridge materials, country, and analytical methods. A decision-tree determine curves. The accuracy was then assessed using a case incremental dynamic analysis. assessment indicates that newly developed for Tehran city have reasonable accuracy. average difference between derived by determined Incremental Dynamic Analysis acceptable. These helped throughout highways with higher seismic vulnerability. also risk reducing future urban planning.