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(北京市建筑設(shè)計研究院有限公司, 北京 100045)
[摘要]針對高烈度地區(qū)重荷載、高層高、大跨度的物流類型的高層建筑,對比框架、框架-剪力墻及框架+消能減震結(jié)構(gòu)體系這三種結(jié)構(gòu)體系方案的小震分析結(jié)果,并且研究了采用屈曲約束支撐(BRB)和支撐式剪切型阻尼器(MD)的混合使用方式(BRB+MD)的框架體系的周期合理性。通過大震彈塑性時程分析,驗證了框架+消能減震結(jié)構(gòu)體系的抗震性能。結(jié)果表明,在高烈度地區(qū)框架+消能減震結(jié)構(gòu)體系是這種類型建筑可采用的合理抗震體系。
[關(guān)鍵詞]屈曲約束支撐; 剪切型阻尼器; 消能減震體系; 周期合理性; 彈塑性時程分析
中圖分類號:TU398+.9, TU352文獻標(biāo)識碼:A文章編號:1002-848X(2018)20-0049-06
Feasibility study on energy dissipation system of logistics buildings in high intensity region
Li Boyu, Wang Ran, Yu Senlin, Shu Weinong, Zhang Meng, Zhang Yanhe, Bi Pengfei, Hao Shumin
(Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:For the high-rise logistics buildings with heavy load, high storey height and long\|span in high intensity region, the results of small earthquake analysis of three structural systems: frame, frame-shear and frame+energy dissipation structure system were compared. The periodic rationality of BRB+MD frame system, which uses both buckling-restrained brace (BRB) and supported shear damper(MD) was demonstrated. Through the elastic\|plastic time\|history analysis under the rare earthquake, the seismic performance of frame+energy dissipation structure system was also verified. The results show that the frame+energy dissipation structure system is a reasonable seismic system for this building type in high intensity region.
Keywords:buckling-restrained brace; shear damper; energy dissipation system; periodic rationality; elastic-plastic time-history analysis
作者簡介:李博宇,碩士,工程師,Email:lby20081986@sina.com。