Based on the mechanical characteristics of RC frame structures

the seismic design scheme with rocking of moment frames was used to improve the security of the building structure under strong seismic action.The calculation model of the structure system was formed and state space analysis method and pseudo excitation method were combining used to solve the stationary random response of the new structure system.And with the calculated random response the dynamic reliability of RC frame with rocking of moment frames was analyzed.A 6-story RC frame in the western region was taken as the research object.The influence of the rocking of moment frames with different stiffness ratio to the dynamic reliability of the new structure system under strong seismic action was discussed by using the dynamic reliability theory.The results show that by adding rocking of moment frames with different stiffness ratio

structural system deformation modes can be effectively adjusted

the dissipation energy capacity of this structure may be increased and the conditional failure probability of the overall structure may be reduced.