- 摘 要
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(1 青島騰遠設計事務所有限公司， 青島 266100；2 上海藍科建筑減震科技股份有限公司， 上海 201106)
［摘要］ 菏澤市牡丹人民醫(yī)院門診婦兒樓采用框架-剪力墻結構體系，按8度0.20g進行設計。為降低地震輸入響應，減小結構最大層間位移角，提高其抗震性能并滿足結構減震目標，采用消能減震技術——黏滯阻尼器（VFD）。采用YJK軟件進行振型分解反應譜計算，ETABS振型分解反應譜（補充復核）、彈性時程和彈塑性時程分析計算；并將減震及非減震結構的結果進行對比分析。結果顯示，采用該消能減震技術后，多遇地震作用下結構基底剪力和層間位移角的減震效果顯著，滿足結構既定附加等效阻尼比要求；時程法結構基底剪力減震率遠高于反應譜法結構基底剪力減震率；罕遇地震作用下結構減震效果良好，彈塑性層間位移角滿足規(guī)范及既定性能目標要求。
［關鍵詞］消能減震；黏滯阻尼器；附加阻尼比；能量法；減震率
中圖分類號：TU398-9，TU352 文獻標識碼：A文章編號：1002-848X(2021)22-0037-06
Energy dissipation analysis and design of outpatient building for women and children of Peony People’s Hospital of Heze city
WAN Mohan1, DING Xinhai1, WEN Liangjian2, JING Yanqing1, JIANG Yongguang1, LI Na1, SUN Shaodong1, LIU Chao1
(1 Qingdao Tengyuan Design Institute Co., Ltd., Qingdao 266100， China；2 Shanghai LANKE Building Damping Technology Co., Ltd., Shanghai 201106， China)
Abstract: The outpatient building for women and children of Peony People’s Hospital of Heze city adopts frame-shear wall structural system, which was designed according to seismic fortification intensity 8th grade, seismic acceleration 0.20g. Energy dissipation technology-viscous fluid damper (VFD) was employed in order to reduce seismic input response, decrease maximum layer displacement angle, improve seismic performance and accomplish the vibration control of structure. YJK software was used to do the mode decomposition response spectrum calculation, ETABS mode decomposition response spectrum (supplementary review), elastic time history and elastoplastic time history analysis and calculation; and the results of seismic reduction structure and non-seismic reduction structure were compared and analyzed. The results show that after adopting the energy dissipation and seismic reduction technology, the damping effect of the base shear force and the interlayer displacement angle of the structure under frequent earthquakes is significant, which meets the requirements of the additional equivalent damping ratio of the structure; the base shear damping ratio of elastic time history analysis method is much higher than that of modal decomposition response spectrum method, and the seismic reduction effect is good under rare earthquake, and elastic-plastic layer displacement angle meets the demands of regulations and the established performance objectives.
Keywords:energy dissipation； viscous fluid damper； additional damping ratio； energy method； damping ratio
作者簡介：萬墨罕，學士，高級工程師，一級注冊結構工程師，Email：yantai006@126.com。
