Over time, a gradual degradation of reinforced concrete structures will reduce its carrying capacity, and in many cases, also mean the destruction of the mechanism of transition from ductile to brittle.Thus, the performance and life of the structure RC assess the structural damage assessment requires preventive degraded condition, in particular due to corrosive conditions, corrosion is caused by the harsh environmental conditions caused.In this regard, a major problem especially for the safety assessment of the ductility of the structure earthquake zone plays an important role. In fact, the response to external stimuli depends on the actual extent of damage the structure.