BRB+VD消能減震結(jié)構(gòu)體系分析研究
陳斯聰，周云
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（廣州大學(xué)土木工程學(xué)院， 廣州 510006）
［摘要］介紹了屈曲約束支撐（BRB）+ 黏滯阻尼器（VD）結(jié)構(gòu)體系的減震原理，研究了體系的周期合理限值、體系的層間位移角限值，并提出BRB的逐步布置方法。以一實際工程為例，闡述了BRB+VD體系的實現(xiàn)過程，對比了BRB+VD，BRB，VD三種結(jié)構(gòu)體系的減震效果，驗證了BRB+VD結(jié)構(gòu)體系的優(yōu)越性。結(jié)果表明，提出的逐步布置方法能有效布置BRB，布置屈曲約束支撐和黏滯阻尼器的BRB+VD結(jié)構(gòu)體系能明顯提高結(jié)構(gòu)的抗震性能，是高烈度地區(qū)復(fù)雜框架的合理消能體系。［關(guān)鍵詞］屈曲約束支撐; 黏滯阻尼器; 減震; 逐步布置法中圖分類號：TU352.1+2 文獻標識碼：A 文章編號：1002-848X(2016)11-0085-06
Analysis and research of BRB+VD energy dissipation systemChen Sicong, Zhou Yun（School of Civil Engineering, Guangzhou University, Guangzhou 510006, China）Abstract: The damping mechanism of buckling restrained braces (BRB) + viscous dampers (VD) structure system was introduced，the reasonable limit period and storey drift limit of such structure system were studied and further a step-setup method of BRB was proposed. Based on a practical structure, implementation procedures of BRB + VD system were elaborated. Compared the damping effect of structure system of BRB+VD, BRB, VD, the advantages of BRB+VD structure system were verified. Results show that the proposed step-setup method can arrange BRBs effectively. BRB+VD structure system can improve the seismic performance obviously, which is the reasonable energy dissipation system of complex frame structure in high-intensity areas.Keywords: buckling restrained brace; viscous damper; damping effect; step-setup method
通訊作者：周云，博士，教授，Email:zhydxs@163.com。
