- 摘 要
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(1 中衡設(shè)計集團(tuán)股份有限公司, 蘇州 215123;2 遠(yuǎn)洋集團(tuán)遠(yuǎn)星事業(yè)部, 上海 201107?3 重慶樸生瑞合建筑設(shè)計有限公司, 重慶 400030)
摘要: 紅星發(fā)展大道商業(yè)綜合體項目位于高烈度區(qū),采用鋼筋混凝土框架結(jié)構(gòu)體系+黏滯阻尼墻. 根據(jù)結(jié)構(gòu)特點制定減震結(jié)構(gòu)性能目標(biāo),附加阻尼比計算采用直接積分法,取累積能量法與規(guī)范算法兩種算法的極小值 3%作為結(jié)構(gòu)設(shè)計附加阻尼比. 子結(jié)構(gòu)框架的設(shè)計采用等效線性化模型,控制該模型的樓層剪力不低于彈塑性分析所得樓層剪力的包絡(luò)值,并在黏滯阻尼墻相連部位附加等效節(jié)點荷載(剪力和彎矩). 關(guān)鍵構(gòu)件的中震性能分析基于等效線性化模型,結(jié)構(gòu)的大震性能分析基于彈塑性時程分析. 分析結(jié)果表明:子結(jié)構(gòu)框架作為減震結(jié)構(gòu)的重要構(gòu)件,大震下滿足極限承載力要求,建議控制損傷狀態(tài)為中度與鋼筋塑性應(yīng)變值不超 27 倍屈服應(yīng)變.
關(guān)鍵詞: 高烈度區(qū);黏滯阻尼墻;減震結(jié)構(gòu);子結(jié)構(gòu);附加阻尼比
中圖分類號:TU375 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2022)20-0084-08
DOI:10.19701 / j.jzjg.ZJ220019
Structural selection and damping performance analysis of large commercial complex in high intensity area
ZHU Xunyan1, TAN Lihua1, ZHANG Wei1, CAI Yongping2, ZHOU Wei1, XI Yuan3
(1 ARTS Group Co. , Ltd. , Suzhou 215123, China;2 COSCO Group Yuanxing Business Department, Shanghai 201107,China;3 Chongqing Pusheng Ruihe Architectural Design Co. , Ltd. , Chongqing 400030, China)
Abstract: Hongxing Development Avenue commercial complex project is located in a high seismic intensity area. Theconcrete frame structure system + viscous damping wall was adopted. The damping performance target of the structure wasdetermined according to its characteristics. The design additional damping ratio of the structure was calculated based on thenonlinear direct integral calculation results of cumulative energy method and standard algorithm and the additional dampingratio is taken as 3% according to the minimum mean value. Equivalent linearization model was used to design the sub-structural frames. The calculated story shear force of this model should be larger than the envelope value of elastic-plasticstory shear force. Equivalent joint load ( shear force and bending moment) was applied on components connected withviscous damping wall. The performance analysis of important members under fortification earthquake was based onequivalent linearization model,and the performance analysis under rare earthquake was based on elastic-plastic time historyanalysis. The result of analysis show that as important components of damping structure, the seismic performance under rareearthquake can meet the ultimate bearing capacity. It is suggested that damage state of the structure should be controlled tomoderate damage and the plastic strain of reinforced steel does not exceed 27 times yield strain value.
Keywords:high intensity area;viscous damping wall;damping structure;sub-structure;additional damping ratio
∗中衡設(shè)計集團(tuán)科研項目(2019-S1):多高層結(jié)構(gòu)減震技術(shù)研究及工程應(yīng)用.
第一作者:朱尋焱,碩士,高級工程師,一級注冊結(jié)構(gòu)工程師,主要從事超高層與大跨度復(fù)雜結(jié)構(gòu)設(shè)計工作,Email:zhuxunyan@artsgroup. cn.
[引用本文] 朱尋焱,談麗華,張薇,等. 高烈度區(qū)大型商業(yè)綜合體結(jié)構(gòu)選型與減震性能分析[J]. 建筑結(jié)構(gòu),2022,52(20):84-91. ZHU Xunyan,TAN Lihua,ZHANG Wei,et al. Structural selection and damping performance analysis oflarge commercial complex in high intensity area[J]. Building Structure,2022,52(20):84-91.
