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(1 東南大學(xué)建筑設(shè)計(jì)研究院有限公司， 南京 210096； 2 東南大學(xué)土木工程學(xué)院， 南京 210096)

［摘要］蘇州第二圖書(shū)館建筑造型上大下小，存在連體、大懸挑、樓板不連續(xù)等多個(gè)不規(guī)則項(xiàng)，屬于復(fù)雜性超限的高層建筑。根據(jù)建筑內(nèi)部柱網(wǎng)正交，外圍柱雙向傾斜，角部存在大懸挑的特點(diǎn)，采用了內(nèi)部鋼筋混凝土框架-剪力墻結(jié)構(gòu)、外圍斜柱鋼框架的混合結(jié)構(gòu)體系，實(shí)現(xiàn)了建筑造型與結(jié)構(gòu)受力的高度統(tǒng)一。通過(guò)對(duì)結(jié)構(gòu)進(jìn)行性能化設(shè)計(jì)，并對(duì)外圍斜柱鋼框架重點(diǎn)部位采取針對(duì)性的加強(qiáng)措施，結(jié)構(gòu)的各項(xiàng)性能指標(biāo)均滿足規(guī)范要求，驗(yàn)證了結(jié)構(gòu)體系的合理性。在此基礎(chǔ)上，系統(tǒng)梳理了針對(duì)大角度外傾鋼框架的構(gòu)造分析。 

［關(guān)鍵詞］蘇州第二圖書(shū)館； 大懸挑； 斜柱鋼框架； 復(fù)雜性超限高層建筑； 混合結(jié)構(gòu)體系； 預(yù)應(yīng)力 

中圖分類號(hào)：TU318 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)11-0039-08

 Structural design of Suzhou No.2 Library 

HAN  Chongqing1,  TAO  Jianxiong2,  FU  Qiang1,  SUN  Xun1,  ZHANG  Peng1 

(1 Architects & Engineers Co., Ltd. of Southeast University， Nanjing 210096， China；2 School of Civil Engineering, Southeast University， Nanjing 210096， China) 

Abstract: Suzhou No.2 Library is a complicated out-of-code high-rise building due to multiple irregularities including the special shape of inverted cone, connected structure, large cantilever and discontinuous floor slab. The building has the characteristics of the orthogonal column gird inside the building, the two-way outward inclination of the peripheral columns and the long cantilever in the corner, and the structure adopts the hybrid structural system of interior reinforced concrete frame-shear wall structure and peripheral steel frame with inclined columns, which realizes the high unity of architectural modeling and structural mechanism. Through the performance-based design of the structure, and taking targeted strengthening measures for the key parts of the peripheral steel frame with inclined columns, all the performance indexes of the structure meet the requirements of the specification, which verifies the rationality of the structural system. On this basis, the structural analysis of the inclined steel frame with large angle was systematically summarized. 

Keywords:Suzhou No.2 Library； large cantilever； inclined column steel frame； complicated out-of-code high-rise building； hybrid structural system； prestress

作者簡(jiǎn)介：韓重慶，博士，一級(jí)注冊(cè)結(jié)構(gòu)工程師，研究員級(jí)高級(jí)工程師，Email:chq_han@seu.edu.cn。