A Uniform Storey Ductility Demand Seismic Design Method for Buildings

Abstract eng:
Based on direct displacement-based seismic design method, the target displacement profile is determined by the allowable uniform storey ductility. Only considering the first mode, reduce MDOF system equivalent SDOF system, the base shear is calculated based on the allowable storey ductility factor using inelastic displacement spectra. Then the base shear is distributed corresponding to the target displacement profile. This method is aim to make building’s each storey ductility demand is similar under earthquakes, avoiding damage concentrated in one storey, making the seismic design of buildings economic and safe as far as possible.

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