Conference Paper Seismic Performance Evaluation of Existing High-rise Steel Building Subjected to Long-Period Ground Motion and Assessment of Retrofit by Steel Dampers

佐藤, 大樹  ,  Sato, Daiki  ,  長江, 拓也  ,  Nagae, Takuya  ,  北村, 春幸  ,  Kitamura, Haruyuki  ,  梶原, 浩一  ,  Kajiwara, Koichi

The main structural damage occurring in high-rise steel buildings subjected to long-period ground motions is cumulative inelastic deformation concentrated in the beam-column connections. The seismic performance of such buildings is thus significantly influenced by the type of beam-column connection detail. However, there is no current statistical information relating to beam-column connection details of existing high-rise steel buildings. Therefore, in order to evaluate seismic demands, a series of dynamic response analyses and long-period ground motions are conducted using two prototype building models. In addition, the effective distribution of dampers is considered in relation to retrofitting by steel dampers.

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