Abstract
Based on the concept of energy balance, the energy distribution analysis is carried out for single degree of freedom system and double degree of freedom system, and then an energy-based optimal design method is proposed, which takes the discrete degree of the ratio of hysteresis energy dissipation between storeys and viscous damper energy dissipation as the optimization objective, aiming to make each story of viscous dampers play the maximum damping efficiency. Taking the 10-storey reinforced concrete frame as an example, the UD method is used for the initial arrangement, on which the energy-based optimized design is carried out and compared with the UD method. The results show that the total hysteresis energy consumption of the optimized structure is reduced by about 17%, and the seismic damping efficiency of the viscous dampers arranged in each story is maximized, which also ensures that the maximum inter-story displacement angle meets the code requirements.
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