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(1 北京工業(yè)大學建筑工程學院，100022; 2 中國成達工程公司，成都610041)

［提要］將SMA復合摩擦阻尼器用作空間網(wǎng)架結構的耗能減振裝置，探討了其在空間結構中的減振控制分析方法。介紹了SMA復合摩擦阻尼器的工作原理和理論模型，建立了網(wǎng)架結構減振控制的運動方程。地震作用下某網(wǎng)架結構減振控制的數(shù)值模擬結果表明，SMA復合摩擦阻尼器可有效降低結構地震響應，較之純摩擦阻尼器和純SMA阻尼器，減振效果更為優(yōu)良。

［關鍵詞］形狀記憶合金；摩擦阻尼器；空間網(wǎng)架結構；振動控制

Vibration Control for Space Frame Structures Using SMA Incorporated Friction Dampers/Wang Li^1,2, Xue Suduo¹, Zhuang Peng¹ (1 The College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China; 2 Chengda Engineering Corporation of China, Chengdu 610041, China)

Abstract:SMA incorporated friction dampers are used as energy dissipation devices in space frame structures and analytical methods of controlled space frame structures with the dampers are discussed. The working mechanism and theoretical model of the SMA incorporated friction damper are introduced. The damper device is applied to a space frame structure to investigate its vibration reduction effectiveness. The motion equations for space frame structures with such dampers are derived. Numerical results show that seismic response of space frame structures can be reduced effectively by using the SMA incorporated friction dampers. The study indicates that the SMA incorporated friction damper is superior to the pure friction damper or pure SMA damper in vibration mitigation performance.

Keywords:shape memory alloy; friction damper; space frame structure; vibration control