The post-tensioned (PT) energy-dissipating connection for steel frames has drawn the attention of many researchers for its good seismic performance. Friction mechanisms, such as friction damped PT steel connections, are the approaches typically used to improve energy-dissipating capacity. The mechanical behavior of PT connections has been extensively investigated. The seismic performance of PT frames should be optimized by employing a suitable design of a friction device. In this study, the influence of fmax on the seismic behavior of a PT frame is investigated. The max static frictional force fmax is optimized based on a genetic algorithm (GA). Results indicate that the reasonable distribution of fmax can evidently improve seismic performance. Consequently, the GA method can be effectively utilized for seeking the optimal combination of fmax if the simplified finite element model is adopted. Results derived will provide a foundation for analysis and design of PT frame structures.

Zhao Zhongwei;Jian Xiangyang;Yuan Ye;Liu Haiqing

School of Civil Engineering,Liaoning Technical University,Fuxin 123000,China

地震工程与工程振动（英文版）

[1]Zhao Zhongwei;Jian Xiangyang;Yuan Ye;Liu Haiqing-.Optimization for friction damped post-tensioned steel frame based on simplified FE model and GA)[J].地震工程与工程振动（英文版）,2022(01):209-219

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