摘要

The multifunctional vibration-absorption RC megaframe structures, which act as tuned mass dampers, base isolators and damping energy-dissipaters, are presented. The proposed systems are essentially different from the normal megaframe structures in earthquake responses, failure mechanism, and theoretical model of seismic design. The elasto-plastic dynamic analyses show that the earthquake responses of the multifunctional vibration-absorption RC megaframe structures decrease significantly in comparison with the normal megaframe structures, namely 60-80 per cent decrease of the earthquake responses of the major frames and 70-90 per cent decrease of the ones of the minor frames.