- 摘 要
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（1 廣州大學(xué)土木工程學(xué)院， 廣州 510006； 2 廣東省建筑設(shè)計研究院， 廣州 510145；3 廣州大學(xué)工商管理學(xué)院， 廣州 510006）
［摘要］《建筑抗震設(shè)計規(guī)范》(GB 50011—2010)及《建筑消能減震技術(shù)規(guī)程》(JGJ 297—2013)給出的消能減震結(jié)構(gòu)設(shè)計中附加有效阻尼比取值計算方法為包絡(luò)計算方法，使得計算結(jié)果偏于保守，計算精度相對較低。針對以上問題，提出了基于應(yīng)變能法的附加有效阻尼比時變計算方法（時變法），通過消能減震實際工程分析驗證了該計算方法的合理性與精確性。結(jié)果表明，“時變法”計算所得附加有效阻尼比結(jié)果合理，更加吻合實際情況，具有更高精度。
［關(guān)鍵詞］應(yīng)變能法； 附加有效阻尼比； 消能減震； 時變計算方法
中圖分類號：TU318-1文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)11-0103-06
Research on time-varying calculation method of additional effective damping ratio based on strain energy method
Zhou Yun1, Ou Tong2, Xu Xin1,3, Shang Chenghao1
(1 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China;2 The Institute of Architecture Design and Research of Guangdong, Guangzhou 510145, China；3 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)
Abstract:The method for calculating the additional effective damping ratio in the design of energy dissipation structures given in Code for seismic design of buildings (GB 50011—2010) and Technical specification for seismic energy dissipation of buildings (JGJ 297—2013) is the envelope calculation method. The result is conservative and the calculation accuracy is relatively low. In view of the above problems, time-varying calculation method of additional effective damping ratio based on strain energy method was presented. The rationality and accuracy of this calculation method were verified by practical energy-dissipated engineering. The results show that the additional effective damping ratio calculated using time-varying method is reasonable and the calculation results are more consistent with the actual situation and the calculation accuracy is higher.
Keywords:strain energy method; additional effective damping ratio; energy dissipation; time-varying calculation method
作者簡介：周云，博士，教授，Email:zhydxs@163.com。
