Study on the Evaluation of Fragility Characteristics associated with Damage Degree of RC Bridge System and Its Application

Abstract

The objective of this report is to propose the procedure to evaluate the characteristics of fragility specified for civil engineering structure such as road bridge considering with site and source specific seismic action. First of all, limit states specified serious damaged rank associated with either reconstruction or repair of the structure are defined by the damage degree of a structure member. The uncertainty with respect to the material properties and the strength is evaluated quantitatively for obtaining the response of structure. Furthermore, the reference earthquake is evaluated by considering the uncertainty of rupture process on the fault. and the input motion acted on structure model as input motion is also evaluated by the one dimensional dynamic response analysis considering the uncertainty of the soil properties. The probability of a damage rank is evaluated by use of Monte carlo simulation technique.