STUDY ON DURABILITY EVALUATION METHODS OF SERVICEABILITY LIMIT STATES FOR RC STRUCTURES BASED ON CORROSION-CRACK

Durability of reinforced concrete structure is one of the most significant problems which got to be solved quickly.So,it is very necessary and impendency to analyse durability of concrete structure.Based on the existing corrosion-crack model,this paper establishes state equation of serviceability limit states for structural members using the amount of corrosion of steel bars when they begin to crack as structure resistance and using the rusting depth steel bars as load effect,and get probability model for durability of concrete structure.Then,having an example the analysis of durability and parametric sensitivity of concrete structure is done.The results of the example demonstrate the validity of this method.