Seismic damage analysis for reinforced concrete core walls based on members

To study damages of reinforced concrete core walls under earthquake. Based on damage models of reinforced concrete shear wall members and coupled beam members under low cycles reversed loading, using the weighted coefficient method to study the multi-scale effect of migration and conversion from member damage to structural damage, the global damage model reflecting migration and evolution law from member damage to local damage and global damage was established. The validity of the damage model was verified with the test results. The damage states and the corresponding damage index range of reinforced concrete core walls were defined by combining the damage indexes. The results showed that the damage model can describe the seismic damage evolution process and the damage level of reinforced concrete core walls better. The study provided a theoretical basis for the seismic damage assessment and the establishment of damage-based earthquake-resistant design method of this type of structures.