In this paper

dynamic time history analysis and Pushover analysis are carried out to study and compare the elastic-plastic performance of ordinary reinforced concrete core tube and reinforced concrete core tube with mixed concealed bracings.The results indicate that compared with ordinary reinforced concrete core tube

the load-bearing capacity

deformation capacity

and integrity of reinforced concrete core tube with mixed concealed bracings have been improved

and the distribution of stiffness is also more uniform.Then a further study is conducted to research the effect of some parameters on the elastic-plastic performance of reinforced concrete core tube with mixed concealed bracings.The parameters consist of the span-depth ratios of coupling beam

the steel ratio of corner column and the disposal mode of diagonal bracing in wall limb.The results indicate that the load-bearing capacity of reinforced concrete core tube with mixed concealed bracings can be improved by increasing the depth of coupling beam and the steel ratio of corner column

and its deformation capacity is reduced when the depth of coupling beam is increased.Compared with the disposal mode of one group of bracings in each floor

the disposal mode of two groups of bracings in each floor has higher load-bearing capacity.