中洲二期觀光門架結構設計
陳學偉1，韓小雷1，文健2，黃俊杰2，何偉球1，毛貴牛1
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(1 華南理工大學土木與交通學院高層建筑結構研究所，廣州 510640；2 廣州市城市規(guī)劃勘測設計研究院，廣州 510060）［摘要］廣州中洲二期觀光門工程整體結構屬于體型復雜的超限結構。結合結構設計理念，在設計中采用了基于性能的抗震設計方法，利用多種分析手段驗證不同水準下結構的抗震性能，包括小震彈性驗算、中震彈性及中震不屈服構件驗算，以及罕遇地震下的彈塑性時程分析。參考振動臺試驗，提出合理的結構抗震設計措施。同時，根據(jù)工程的風洞試驗結果進行不同風向角下的風振時程分析，進行合理的結構抗風設計。還研究了粘滯阻尼器的設置對結構在內力、變形、加速度及能量方面的控制效果。通過以上及結構整體穩(wěn)定、溫度效應、樓板振動等大量計算分析，提出了相應的超限設計措施，使結構能夠更好地實現(xiàn)預定的性能目標。［關鍵詞］高層連體結構；基于性能的抗震設計；風振時程分析；粘滯阻尼器；穩(wěn)定分析Structure design of Zhongzhou Phase Ⅱ ProjectChen Xuewei1, Han Xiaolei1, Wen Jian2, Huang Junjie2, He Weiqiu1, Mao Guiniu1(1 Tall Building Structure Research Institute, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China; 2 Guangzhou Urban Planning & Design Survey Research Institute, Guangzhou 510060, China)Abstract:Zhongzhou Phase Ⅱ Project is an ultra-limit structure with hybrid structure system and complicated structural shape. Design idea of performance based seismic design was presented. Seismic performance of the structure under different levels of ground motion was analyzed and verified by different methods, such as elastic analysis under frequent earthquake, un-yield and elastic verification of structure element under medium earthquake and inelastic dynamic time-history analysis under rare earthquake. Taking results of shaking table test as reference, reasonable enhance measures of seismic design were suggested. Meanwhile, wind-induced vibration time-history analysis under different wind directions based on wind tunnel test was applied and comfort problem can be well resolved. The control effects of vicious dampers on inter force, deformation, acceleration and energy dissipation of the structure were also studied. By means of analysis methods mentioned above and other plenty analysis of the whole structure stability, temperature effect, floor vibration and so on, relevant measures of ultra-structure design were suggested and the performance objective of the structure can be well realized.Keywords:connected tall building structure; performance based seismic design; wind-induced vibration time-history analysis; vicious damper; stability analysis華南理工大學亞熱帶建筑科學國家重點實驗室自主研究項目(2009ZA04)，“十一五”國家科技支撐計劃項目(2009BAJ04A12)。作者簡介：陳學偉，博士研究生，Email:dinochen1983@yahoo.com.cn。參考文獻［1］ 韓小雷，鄭宜，何偉球，等. 中洲二期工程觀光門架結構可行性報告［R］. 廣州: 華南理工大學高層建筑結構研究所, 2009.［2］ GB50009—2001 建筑結構荷載規(guī)范［S］. 北京:中國建筑工業(yè)出版社，2002.［3］ GB50011—2001 建筑抗震設計規(guī)范［S］. 北京:中國建筑工業(yè)出版社，2001.［4］ 廣州市中洲廣場二期工程場地地震安全性評價報告［R］. 廣州:廣東省地震工程實驗中心, 2007.［5］ 中洲中心二期項目模型模擬地震振動臺試驗研究報告［R］. 廣州:廣州大學工程抗震研究中心，2008.［6］ 韓小雷，陳學偉，林生逸，等. 基于纖維模型的超高層鋼筋混凝土結構彈塑性時程分析及工程應用［J］. 建筑結構，2010，40(2):13-16.［7］ 謝壯寧，石碧青. 廣州中洲觀光門風荷載特征風洞試驗數(shù)據(jù)圖表［R］. 汕頭：汕頭大學大氣邊界層風洞實驗室，2008.［8］ ASCE/SEC41-46 Seismic Rehabilitation of Existing Buildings［S］. USA: American Society of Civil Engineers, 2007.［9］ 陳學偉，韓小雷，毛貴牛，等. 粘滯阻尼器在連體高層結構中的抗風減振效果［J］. 土木建筑與環(huán)境工程，2009，31 (5):74-80.［10］ 馬玉宏，金建敏，韓小雷，等. 高層鋼-混凝土組合門式結構消能減震體系模擬地震振動臺
