Abstract: Shopping center of arts and culture of Yanchuan County was on fire for four hours． According to some testing specifications and corresponding profession，it was accurately analyzed the damages of the structures after fire， distortion of the components，damage condition of joints，damage thickness of the components surface，the strength of damaged concrete and damaged reinforcement were measured in field，the residual bearing capacity of structure was calculated，the rating level and strengthening scheme of the structures after fire were given at last which can eliminate dangerous situation of the fired structures．