南亞之門塔樓結(jié)構(gòu)初步設(shè)計*
包聯(lián)進
- 摘 要
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包聯(lián)進 （華東建筑設(shè)計研究院有限公司，上海 200002）
［摘要］南亞之門工程位于云南省昆明市，塔樓建筑高度366m，為我國目前8度地區(qū)擬建的超高建筑之一。采用巨型框架-混凝土核心筒結(jié)構(gòu)體系，層23以下建筑平面呈正方形，層23以上削角，建筑平面呈逐漸縮小的八邊形，并在建筑頂部形成與底部旋轉(zhuǎn)45°的內(nèi)接正方形平面。置于平面四角的巨柱在層23一分為二形成8根傾斜角柱，并在設(shè)備層設(shè)置環(huán)帶桁架，與巨柱形成抗側(cè)剛度較大的巨型框架，與核心筒一起承擔(dān)地震作用。環(huán)帶桁架與核心筒通過加強層的樓板協(xié)調(diào)變形，起到“虛擬伸臂”的作用。采用速度型粘滯阻尼器增加結(jié)構(gòu)阻尼，以減小地震作用。［關(guān)鍵詞］巨型框架; 框架-核心筒; 環(huán)帶桁架; 虛擬伸臂; 粘滯阻尼器中圖分類號：TU318文獻標識碼：A文章編號：1002-848X(2012)05-0038-05Preliminary design on the structure of Gate of South Asia TowerBao Lianjin （East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China）Abstract: Gate of South Asia Tower located at Kunming with 366m high, is one of the highest structures in 8 degree-earthquake fortification zone. Mega frame-concrete core wall system is adopted in the structural design. The typical floor plan is square below the F23. Four mega columns are located at each corner. The floor plans are cut by an inclined plane at each corner above the F23 and form into gradually reduced octagons which finally form an inscribed square rotated by 45 degree from the bottom square. So the mega column in each corner bifurcates into two inclined mega columns from the F23. Mega frame consisted of the belt trusses located at the mechanical floors and the mega columns work in cooperation with the concrete core tube to resist the earthquake action. The belt trusses work as virtual outriggers through the slab in the mechanical floor. The viscous damper is adopted in the structure design to reduce the seismic effect.Keywords: mega frame; frame-corewall; belt truss; virtual outrigger; viscous damper*上海市青年科技啟明星計劃（11QB1400500）。作者簡介：包聯(lián)進，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：blj0068@ecadi.com。參考文獻［1］STAFFORD SMITH B, CRUVELLIER M, NOLLER MJ, et al. Offset outrigger concept for tall buildings［C］//Tall Building Structures—A World View, Council on Tall Buildings and Urban Habitat，1996:73-80.［2］ R SHANKAR NAIR. Belt trusses and basements as “Virtual” outriggers for tall buildings［J］. Engineering Journal, 1998(4):140-146［3］ 孫飛飛，李國強，鄧仲良. 芯筒剛臂結(jié)構(gòu)體系分析理論及其抗震減震理論研究綜述［J］. 結(jié)構(gòu)工程師，2011，27(2)：150-159.［4］ 袁雅光. 紹興皇冠假日酒店型鋼混凝土框架核心筒結(jié)構(gòu)設(shè)計［J］. 結(jié)構(gòu)工程師，2010，26(3)：24-30.［5］ 黃愿，汪夢甫，宋興禹. 帶鋼桁架水平加強層的高層混合結(jié)構(gòu)抗震性能分析［J］. 鋼結(jié)構(gòu)，2010，25(9)：15-19.［6］ 王永春，丁潔民，何志軍. 梭形超高層筒中筒結(jié)構(gòu)的受力特性分析［J］. 建筑結(jié)構(gòu)，2006，36(9)：52-54.［7］ 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.
