包商銀行商務(wù)大廈超限結(jié)構(gòu)設(shè)計
盧清剛,劉長東,劉永豪,閤東東,展興鵬,詹延杰,方云飛
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（北京市建筑設(shè)計研究院有限公司，北京 100045）［摘要］包商銀行商務(wù)大廈為最大高度135m的大底盤多塔超限高層建筑，3棟塔樓質(zhì)量、剛度差異較大，5層裙房樓面開洞率高、連接薄弱，裙房上部A塔、B塔之間設(shè)平面尺寸為40m×40m的負(fù)高斯曲面單層鋼網(wǎng)殼，合理地處理B級高度高層結(jié)構(gòu)、多塔結(jié)構(gòu)、裙房樓板嚴(yán)重不連續(xù)等多項超限特征是本工程的設(shè)計難點?；谛阅芑拐鹪O(shè)計，根據(jù)構(gòu)件的重要性分別提出不同的性能目標(biāo)，采取相應(yīng)抗震加強措施，通過不同程序分別進行了中震彈性、中震不屈服設(shè)計及大震彈塑性驗證分析。分析結(jié)果表明，所提出的各項性能化目標(biāo)均得到實現(xiàn)，性能化抗震設(shè)計和采取的抗震措施能滿足結(jié)構(gòu)“小震不壞、中震可修、大震不倒”的抗震設(shè)防要求。［關(guān)鍵詞］B級高度; 多塔結(jié)構(gòu); 樓板不連續(xù); 變剛度調(diào)平; 協(xié)同沉降中圖分類號：TU318 文獻標(biāo)識碼：A 文章編號：1002-848X(2015)01-0015-06Out-of-code structural design of Baoshang Bank business buildingLu Qinggang, Liu Changdong, Liu Yonghao, Ge Dongdong, Zhan Xingpeng, Zhan Yanjie, Fang Yunfei（Beijing Institute of Architectural Design, Beijing 100045, China）Abstract: Baoshang Bank business building with the maximum height of 135m is an out-of-code high-rise multi-tower building with a large podium. The mass and stiffness of the three towers above the podium have large differences. The slabs of the five-story podium have large opening ratio and weak connections. On the top of the podium, there is a 40m×40m single-layer reticulated shell structure with negative Gaussian surface located between tower A and B. The challenge of this project is to reasonably deal with multiple out-of-code characteristics, including B-level height high-rise building, multi-tower and severe discontinuity of podium slabs. According to performance-based seismic design, the performance-based seismic design goals and the seismic strengthening measures should correspond to the importance of the members. Different programs were used to carry out the elastic design and non-yielding design under the fortification earthquake as well as the elastic-plastic analysis under the rare earthquake. Analyses results show that the proposed objectives of performance-based seismic design are achieved and the adopted seismic measures can fulfill the seismic fortification requirements of the 3-level design.Keywords: B-level height; multi-tower structure; slab discontinuity; variable stiffness harmony; collaborative settlement作者簡介：盧清剛，碩士，教授級高級工程師，一級注冊結(jié)構(gòu)工程師，Email：lqg001@126.com。參考文獻［1］GB 50007—2011 建筑地基基礎(chǔ)設(shè)計規(guī)范［S］．北京:中國建筑工業(yè)出版社，2012.［2］JGJ 3—2010 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，2011.［3］GB 50011—2010 建筑抗震設(shè)計規(guī)范［S］．北京:中國建筑工業(yè)出版社，2010.［4］陳彬磊，江磊鑫.超高超限工程的規(guī)范條文及建議［Ｊ］.建筑結(jié)構(gòu)，2014,44（2）：8-12.［5］包商銀行商務(wù)大廈結(jié)構(gòu)抗震超限設(shè)計審查報告［R］.北京：北京市建筑設(shè)計研究院有限公司，2013.
