- 摘 要
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（1 重慶銀橋建筑設(shè)計有限公司昆明分公司， 昆明 650000； 2 東南大學土木工程學院， 南京 210096； 3 昆明理工大學土木工程學院, 昆明 650000）
［摘要］某大型商業(yè)中心抗震設(shè)防烈度為8度，結(jié)構(gòu)體系為方鋼管混凝土柱+鋼框架梁，采用黏滯阻尼器進行消能減震。主要闡述了該大型商業(yè)綜合體消能減震設(shè)計的阻尼器布置、有效附加阻尼比計算、小震彈性時程分析和減震率分析、大震彈塑性分析及加強措施。結(jié)果表明，結(jié)構(gòu)各項指標均能滿足現(xiàn)行規(guī)范及規(guī)程要求，大震下黏滯阻尼器的減震耗能效果明顯，有效保護了主體結(jié)構(gòu)，提高了整體結(jié)構(gòu)的抗震性能。
［關(guān)鍵詞］消能減震設(shè)計； 黏滯阻尼器； 阻尼比； 減震率； 時程分析
中圖分類號：TU352-1文獻標識碼：A文章編號：1002-848X(2018)05-0099-05
Energy dissipation design of a large commercial center
Liu Jun1, Zhang Zhiqiang2, Ji Xun1, Feng Chunlei1,3
(1 Kunming Branch of Chongqing Yinqiao Architectural Design Co., Ltd., Kunming 650000, China; 2 School of Civil Engineering, Southeast University, Nanjing 210096, China; 3 Faculty of Civil Engineering and Mechanics of Kunming，University of Science and Technology, Kunming 650000, China)
Abstract:A large commercial center is located in region of 8 degrees of seismic fortification intensity, and it adopts structural system of concrete-filled steel square tube column+steel frame beam. Viscous damper is adopted for energy dissipation. Designs and analysis of this large-scale commercial complex were mainly elaborated including the damper arrangement for energy dissipation design, effective additional damping ratio calculation, elastic time-history analysis and shock absorption rate under frequent earthquake, elasto-plastic analysis and strengthening measures under rare earthquake. The results show that all the indexes of the structure can meet the requirements of current codes and regulations. The energy dissipation effect of viscous dampers under rare earthquake is obvious, which effectively protects the main structure and improves the seismic performance of the whole structure.
Keywords:energy dissipation design; viscous damper; damping ratio; shock absorption rate; time-history analysis
作者簡介：劉軍，碩士，一級注冊結(jié)構(gòu)工程師，Email：21594340@qq.com。
