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（同濟大學建筑設(shè)計研究院（集團）有限公司， 上海 200092）
［摘要］森蘭國際七、八期工程為一個商業(yè)綜合體，地下2層，主樓地上17層，建筑高度79.25m。建筑平面為弧形平面，外邊緣長度為364.0m，地上結(jié)構(gòu)設(shè)置兩道結(jié)構(gòu)縫，整體結(jié)構(gòu)拆分為A，B，C三個結(jié)構(gòu)單元。A單元和C單元在5層和13層處退臺收進，屬于豎向體型收進的復(fù)雜高層建筑,此兩單元采用混合框架（型鋼混凝土柱+鋼梁）-核心筒結(jié)構(gòu)體系；B單元為裙房，采用型鋼混凝土柱+鋼梁結(jié)構(gòu)體系。為了滿足建筑凈高要求，主樓辦公區(qū)13m跨梁采用腹板開穿越設(shè)備管線的矩形洞口變截面鋼梁。基礎(chǔ)采用樁筏基礎(chǔ)。圍繞項目設(shè)計過程中的要點及難點進行了論述，對結(jié)構(gòu)體系進行了方案比選，詳細論述了關(guān)鍵節(jié)點的設(shè)計和針對超限高層建筑所采取的抗震加強措施，并對外擴地下室下抗拔樁布置方案進行了比較，優(yōu)化了筏板設(shè)計。
［關(guān)鍵詞］超限高層建筑； 商業(yè)綜合體； 弧形平面； 豎向體型收進； 鋼-混凝土混合結(jié)構(gòu)體系； 樁筏基礎(chǔ)
中圖分類號：TU398-2文獻標識碼：A文章編號：1002-848X(2020)16-0021-08
Structural design of a commercial complex in Shanghai
XI Zhenyong
（Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China)
Abstract:Phase 7 and Phase 8 Project of Senlan International is a commercial complex. The main building has 17 floors over ground with height of 79.25m, and it has 2 floors underground. The building plane of the project is an arc-shaped plane with an outer edge length of 364.0m. The ground structure is divided into three structural units of A, B and C by setting two permanent structural joints. Unit A and unit C retreat at the 5th and 13th floors to form indentations, which belong to the complex high-rise building with vertical shape indentation. The mixed frame (steel reinforced concrete column+steel beam)-corewall structural system is adopted in unit A and unit B; unit B is the podium, and the steel reinforced concrete column + steel beam structural system is adopted. In order to meet the requirements of building clear height, the 13m span beam in the office area of the main building adopts the rectangular portal variable cross-section steel beam with web opening for the equipment pipeline. Pile-raft foundation is adopted as the foundation. The key points and difficulties in the process of project design were discussed, the schemes of the structural system were compared and selected, the design of the key joints and the seismic measures of out\|of-code high-rise building were discussed in detail, and the layout schemes of the uplift piles for the external expansion of the basement were compared, and the raft design was optimized.
Keywords:out-of-code high-rise building; commerical complex; arc-shaped plane; indentation of vertical shape; steel-concrete mixed structural system; piled-raft foundation
作者簡介：奚震勇，學士，高級工程師，一級結(jié)構(gòu)注冊工程師，Email:32xzy@tjad.cn。
