For the purpose of understanding the mechanical property degradation law of corroded reinforced concrete structures under earthquake

this paper carries out the low cyclic loading test on six corroded flexural members

obtains the hysteresis loop and skeleton curve of reinforced concrete specimens with different corrosion degrees and analyzes the effects of reinforcement corrosion on specimen strength and stiffness.It is revealed that the degradation of specimen strength is increased as corrosion rate of reinforcement increases;the strength degradation of low rust specimens is higher than that of non-corrosion specimens and seriously corrosion specimens due to existance of the corrosive nternal force.Besides

the leading and unloeding stiffness of specimen generally decreases and keeps decreasing tendency with the increasing of displacement.Moreover

the stiffness degradation mechanism of corroded reinforced concrete structure was analyzed.The results of this paper provide some references to the seismic performance study of corroded reinforced concrete structure.