不規(guī)則鋼筋混凝土高層建筑振動臺試驗研究
陳好平1,張川2,傅劍平2,賴舒毓2,劉梁松2,白翔3,畢瓊3,陳洪艷3
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陳好平1,張川2,傅劍平2,賴舒毓2,劉梁松2,白翔3,畢瓊3,陳洪艷3(1 中信建筑設(shè)計研究總院有限公司,武漢 430014; 2 重慶大學土木工程學院,重慶 400045;3 中國建筑西南設(shè)計研究院有限公司,成都 610091)[摘要]成都市天府軟件園三期工程由多幢平面凹凸不規(guī)則、扭轉(zhuǎn)不規(guī)則和沿豎向剛度不均勻的建筑組成,其中B,C座從層11至屋面層采用鋼桁架連廊連成一體,成為連體結(jié)構(gòu),且底層設(shè)置2層連通的架空層,層2樓板開洞面積為該層面積的47%。為研究其抗震性能,進行縮尺(1/30)模型的振動臺試驗,在試驗結(jié)果的基礎(chǔ)上,對該建筑的整體和局部結(jié)構(gòu)的抗震性能進行評價。試驗結(jié)果表明,通過采取抗震加強措施及合理設(shè)計,結(jié)構(gòu)能夠滿足抗震性能目標。[關(guān)鍵詞]鋼筋混凝土;不規(guī)則;高層;鋼結(jié)構(gòu)連廊;振動臺試驗中圖分類號:TU317+.1文獻標識碼:A文章編號:1002-848X(2012)09-0044-04Shake table tests on irregular reinforced concrete tall buildingsChen Haoping1, Zhang Chuan2, Fu Jianping2, Lai Shuyu2, Liu Liangsong2, Bai Xiang3, Bi Qiong3, Chen Hongyan3(1 CITIC General Institute of Architectural Design and Research Co., Ltd., Wuhan 430014, China; 2 College of Civil Engineering, Chongqing University, Chongqing 400045, China; 3 Southwest Design Institute of China Architecture Co., Ltd., Chengdu 610091, China)Abstract: Phase Ⅲ project of Tianfu Software Park in Chengdu consists of several buildings with plan irregularity, torsion irregularity and vertical stiffness irregularity, in which B and C buildings are linked by corridors of steel truss from the 11th story to the top story. Stilt floor is built in the first and second story, while the opening area in the second story accounts for 47% of the whole floor area. To investigate its seismic performance, shake table tests on a 1/30 scale structural model was carried out, and the global and local seismic performance of the buildings are evaluated based on the testing results. The test results show that the structure can satisfy the present performance objectives through rational design and seismic measures.Keywords: reinforced concrete; irregular; tall building; corridors of steel truss; shake table test*重慶市科委自然科學基金重點項目(CSTC2007BA7006)資助。作者簡介:陳好平,碩士,Email:285915203@qq.com。參考文獻[1]畢瓊,陳紅艷,李常虹,等. 成都某不對稱連體高層建筑結(jié)構(gòu)設(shè)計[J]. 建筑結(jié)構(gòu),2010,40(9):114-116,132.[2]儲德文,梁博,王明貴. 鋼框架混凝土筒體混合結(jié)構(gòu)抗震性能振動臺試驗研究[J].建筑結(jié)構(gòu),2005,35(8):69-72.[3]張舉兵,牟在根,孫杰,等. 不規(guī)則體型高層鋼結(jié)構(gòu)模擬地震振動臺試驗研究[J]. 北京科技大學學報,2008,30(11):1230-1235.[4]呂西林. 超限高層建筑工程抗震設(shè)計指南[M].上海:同濟大學出版社,2005.[5]呂西林,鄒昀,盧文勝,等. 上海環(huán)球金融中心大廈結(jié)構(gòu)模型振動臺抗震試驗[J].地震工程與工振動,2004,24(3):57.[6]陳好平. 帶鋼結(jié)構(gòu)連廊的不規(guī)則鋼筋混凝土高層建筑振動臺試驗研究[D]. 重慶:重慶大學,2010.[7]GB 50011—2001建筑抗震設(shè)計規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2001.[8]JGJ 3—2002高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程[S].北京:中國建筑工業(yè)出版社,2002.