CUMULATIVE DAMAGE MODEL AND EXPERIMENT STUDY OF SHORT PIER SHEAR WALL

To investigate the relationship between the continuous cumulative damage and the macroscopic deformation development and destruction of the short pier shear wall，the nonlinear wall element mechanical model considering the cumulative damage was proposed． the experiments of six 1∶ 2 scale L-shaped short pier shear walls subjected to low cyclic loading were conducted． The nonlinear finite program was programmed according to the model，the cumulative damage process of the specimens was simulated using the program． The whole damage value corresponding to the characteristic load，macroscopic deformation state in the test process of the specimens was obtained，which provided reference for the safety assessment of the structure under the cyclic loading． The hysteretic curve of one of the specimens was simulated; the application of the method was feasible proved by the ideal result．