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（中國建筑科學(xué)研究院建筑設(shè)計院， 北京 100013）
［摘要］移動硅谷創(chuàng)新中心二期項目7#辦公樓為鋼筋混凝土框架-核心筒結(jié)構(gòu)。為了獲得底部大堂大空間，需要在2層頂部進(jìn)行局部托柱轉(zhuǎn)換，轉(zhuǎn)換體系上部結(jié)構(gòu)為22層,轉(zhuǎn)換跨度為13-5m。結(jié)合概念設(shè)計和計算分析，對轉(zhuǎn)換部位的結(jié)構(gòu)布置進(jìn)行了方案比選,最終采用型鋼混凝土疊層斜腹桁架方案。計算表明，疊層斜腹桁架傳力途徑簡短明確，轉(zhuǎn)換效率高，并能調(diào)節(jié)結(jié)構(gòu)整體豎向剛度，具有良好的抗震性能。還介紹了本工程的模型分析、桿件設(shè)計等，并對節(jié)點連接等構(gòu)造措施進(jìn)行了探討。
［關(guān)鍵詞］高層建筑； 疊層斜腹桁架； 轉(zhuǎn)換體系； 型鋼混凝土構(gòu)件
中圖分類號：TU398+- 2文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)24-0012-05
Support column transfer design of laminated oblique web truss in No.7 office building of Mobile Silicon Valley Innovation Centre Ⅱ
Yang Jinming, Ling Peichun , Chi Yanzhong
(China Academy of Building Research Architectural Design Institute, Beijing 100013, China)
Abstract:The reinforced concrete frame-corewall structure is adopted for No.7 building of Mobile Silicon Valley Innovation Centre Ⅱ. To get large space at the bottom lobby, local support column transfer is needed in top of second floor. The upper structure of the transformation system has 22 layers and transfer span is 13-5m. Based on the concept design and calculation analysis, the structure layouts of the transfer parts in different schemes were compared and the steel reinforced concrete laminated oblique abdominal truss was selected. The calculation results show that the force transfer path of laminated oblique web truss is brief and definite, transfer efficiency is high, the vertical stiffness of the structure can be adjusted, and it has good seismic performance. The model analysis and member design of the project were also introduced, and structural measures as joint connection were discussed.
Keywords:high-rise building; laminated oblique web truss; transfer system; steel reinforced concrete member
作者簡介：楊金明，教授級高級工程師，一級注冊結(jié)構(gòu)工程師，結(jié)構(gòu)總工程師，Email：yangjm@cabr-design.com。
