- 摘 要
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（北京市建筑設(shè)計研究院有限公司， 北京 100045）
［摘要］北京鮮活農(nóng)產(chǎn)品項目為北京市重點項目，通過結(jié)構(gòu)方案的優(yōu)選，采用了混凝土框架結(jié)構(gòu)體系+屈曲約束支撐及剪切型阻尼器結(jié)構(gòu)形式。采用性能化設(shè)計，對結(jié)構(gòu)進行了小震、中震分析，并采用MIDAS/Gen程序進行了罕遇地震作用下的彈塑性動力分析。計算分析結(jié)果表明，屈曲約束支撐及剪切型阻尼器的引入能有效降低結(jié)構(gòu)的地震反應(yīng)，很好地起到了第一道防線的作用。屈曲約束支撐及剪切型阻尼器的屈服先于主體結(jié)構(gòu)屈服，從而耗散了地震能量，保護了主體框架結(jié)構(gòu)，很好地起到了結(jié)構(gòu)耗能“保險絲”的作用。
［關(guān)鍵詞］屈曲約束支撐； 剪切型阻尼器； 性能化設(shè)計； 混凝土框架結(jié)構(gòu)； 彈塑性動力分析
中圖分類號：TU352-1文獻標(biāo)識碼：A文章編號：1002-848X(2017)08-0064-05
Energy-dissipated design of Beijing Fresh Agricultural Products Project
Yu Senlin, Zhang Meng, Li Boyu, Wang Ran, Shu Weinong
(Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:Beijing Fresh Agricultural Products Project is the key project of Beijing City. Through the optimization of the structural schemes, it adopts the concrete frame structural system with buckling restrained braces and shear-typed dampers. Based on the performance-based design, the structure was analyzed under frequent and fortification earthquakes, and MIDAS/Gen program was used to carry out the elastic-plastic dynamic analysis under the rare earthquake. The calculation and analysis results show that the introduction of buckling restrained braces and shear-typed dampers can effectively reduce the seismic response of the structure, and can effectively play the role of the first line of seismic resistance. Buckling restrained braces and shear-typed dampers yield before the main body structure, which dissipates the seismic energy and protects the main frame structure. Buckling restrained braces and shear-typed dampers play a good role of “fuse”in the structure energy dissipation.
Keywords:buckling restrained brace; shear-typed damper; performance-based design; concrete frame structure; elastic-plastic dynamic analysis
作者簡介：于森林，本科，工程師，一級注冊結(jié)構(gòu)工程師，Email:pingglong111@126.com。
