中洲二期觀光門架結(jié)構(gòu)設(shè)計(jì)
陳學(xué)偉1，韓小雷1，文健2，黃俊杰2，何偉球1，毛貴牛1
- 摘 要
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(1 華南理工大學(xué)土木與交通學(xué)院高層建筑結(jié)構(gòu)研究所，廣州 510640；2 廣州市城市規(guī)劃勘測設(shè)計(jì)研究院，廣州 510060）［摘要］廣州中洲二期觀光門工程整體結(jié)構(gòu)屬于體型復(fù)雜的超限結(jié)構(gòu)。結(jié)合結(jié)構(gòu)設(shè)計(jì)理念，在設(shè)計(jì)中采用了基于性能的抗震設(shè)計(jì)方法，利用多種分析手段驗(yàn)證不同水準(zhǔn)下結(jié)構(gòu)的抗震性能，包括小震彈性驗(yàn)算、中震彈性及中震不屈服構(gòu)件驗(yàn)算，以及罕遇地震下的彈塑性時(shí)程分析。參考振動臺試驗(yàn)，提出合理的結(jié)構(gòu)抗震設(shè)計(jì)措施。同時(shí)，根據(jù)工程的風(fēng)洞試驗(yàn)結(jié)果進(jìn)行不同風(fēng)向角下的風(fēng)振時(shí)程分析，進(jìn)行合理的結(jié)構(gòu)抗風(fēng)設(shè)計(jì)。還研究了粘滯阻尼器的設(shè)置對結(jié)構(gòu)在內(nèi)力、變形、加速度及能量方面的控制效果。通過以上及結(jié)構(gòu)整體穩(wěn)定、溫度效應(yīng)、樓板振動等大量計(jì)算分析，提出了相應(yīng)的超限設(shè)計(jì)措施，使結(jié)構(gòu)能夠更好地實(shí)現(xiàn)預(yù)定的性能目標(biāo)。［關(guān)鍵詞］高層連體結(jié)構(gòu)；基于性能的抗震設(shè)計(jì)；風(fēng)振時(shí)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(xué)亞熱帶建筑科學(xué)國家重點(diǎn)實(shí)驗(yàn)室自主研究項(xiàng)目(2009ZA04)，“十一五”國家科技支撐計(jì)劃項(xiàng)目(2009BAJ04A12)。作者簡介：陳學(xué)偉，博士研究生，Email:dinochen1983@yahoo.com.cn。參考文獻(xiàn)［1］ 韓小雷，鄭宜，何偉球，等. 中洲二期工程觀光門架結(jié)構(gòu)可行性報(bào)告［R］. 廣州: 華南理工大學(xué)高層建筑結(jié)構(gòu)研究所, 2009.［2］ GB50009—2001 建筑結(jié)構(gòu)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(shè)計(jì)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(jià)報(bào)告［R］. 廣州:廣東省地震工程實(shí)驗(yàn)中心, 2007.［5］ 中洲中心二期項(xiàng)目模型模擬地震振動臺試驗(yàn)研究報(bào)告［R］. 廣州:廣州大學(xué)工程抗震研究中心，2008.［6］ 韓小雷，陳學(xué)偉，林生逸，等. 基于纖維模型的超高層鋼筋混凝土結(jié)構(gòu)彈塑性時(shí)程分析及工程應(yīng)用［J］. 建筑結(jié)構(gòu)，2010，40(2):13-16.［7］ 謝壯寧，石碧青. 廣州中洲觀光門風(fēng)荷載特征風(fēng)洞試驗(yàn)數(shù)據(jù)圖表［R］. 汕頭：汕頭大學(xué)大氣邊界層風(fēng)洞實(shí)驗(yàn)室，2008.［8］ ASCE/SEC41-46 Seismic Rehabilitation of Existing Buildings［S］. USA: American Society of Civil Engineers, 2007.［9］ 陳學(xué)偉，韓小雷，毛貴牛，等. 粘滯阻尼器在連體高層結(jié)構(gòu)中的抗風(fēng)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(jié)構(gòu)消能減震體系模擬地震振動臺
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