規(guī)范反應譜在消能減振設計中的應用
張樹傳1),4) 王亞勇2) Zach Liang3) George C. Lee3)
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1)天津大學土木工程系,300072;2)中國建筑科學研究院,北京,100013;3)MCEER, University at Buffalo, NY14260;4)廈門市建筑設計院有限公司,361004。[提要] 振型分析反應譜法是結構減震消能分析中的重要方法。為比較阻尼比不為5%時的反應譜與阻尼比為5%時的反應譜的情況,介紹了阻尼衰減因子B的概念,同時編制了該衰減因子與特征周期、結構自振周期及總阻尼比之間關系的表格??煞奖愕赜糜诜磻V法消能減振結構的阻尼設計。[關鍵詞] 反應譜 消能減振 阻尼衰減因子 阻尼比Application in Energy Dissipation and Vibration Reduction Design of Code Response Spectra/Authors:Zhang Shuchuan1,4, Wang Yayong2, Zach Liang3, George C. Lee3 (1 Department of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 China Academy of Building Research, Beijing 100013, China; 3 MCEER, University at Buffalo, NY14260; 4 Xiamen Institute of Architectural Design Co., Ltd., Xiamen 361004, China)Abstract:The concept of damping reduction factor B is discussed to compare the design values of response spectra and more than 5% damping ratio. The corresponding relationships of damping reduction factor, characteristic period, self-vibration period of structure and the total damping ratio are compiled in simple tables which are convenient to be used in aseismic design for damperadded structures.Keywords:response spectra;energy dissipation;vibration reduction;damping reduction factor; damping ratio