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（大連市建筑設(shè)計(jì)研究院有限公司， 大連 116021）

［摘要］大連億達(dá)·云集項(xiàng)目是雙向處于高差較大的坡地、地下室超長、地上分布多個(gè)B級(jí)高度建筑的多重超限復(fù)雜建筑群。對(duì)存在多重超限問題的B級(jí)高度建筑，進(jìn)行了性能化設(shè)計(jì)，并對(duì)薄弱部位采取有針對(duì)性的加強(qiáng)措施。對(duì)東北地區(qū)鮮有的長500m以上無縫超長地下室，進(jìn)行了溫差分析，并利用MIDAS/Gen軟件進(jìn)行了溫度作用下的應(yīng)力和變形分析，通過加強(qiáng)構(gòu)造措施及施工措施來減少結(jié)構(gòu)有害裂縫。為應(yīng)對(duì)場地南北10m的高差，地下室底板和頂板在南北方向均采用7次錯(cuò)臺(tái)布置，每次臺(tái)階高差為1-5m；為了使坡地建筑結(jié)構(gòu)受力更趨于合理，在塔樓和地下室間設(shè)置了防震縫，大幅度降低了建設(shè)成本，并對(duì)兼作擋土墻的主體結(jié)構(gòu)進(jìn)行了土壓力作用下承載力復(fù)核。該項(xiàng)目的結(jié)構(gòu)設(shè)計(jì)滿足要求，目前主體結(jié)構(gòu)運(yùn)行良好。

［關(guān)鍵詞］大連億達(dá)·云集項(xiàng)目； 坡地建筑； 超高層結(jié)構(gòu)； 性能化設(shè)計(jì)； 超長地下室

中圖分類號(hào)：TU973-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)01-0037-08

Structural design of super long slope structure for  Yida Yunji project in Dalian

Wen Yuan, Zhang Ying, Mu Da, Feng Xinhui, Fang Kun, Wang Yang

(Dalian Architectural Design & Research Institute Co., Ltd., Dalian 116021, China)

Abstract:Yida Yunji  project  in Dalian is on the slope which has large altitude differences in two directions. The project is an out-of-code complex building group containing several B-level height buildings. The performance-based design was carried out on B-level height building with multiple out-of-code problems, and targeted measures were taken to strengthen the weak positions. Temperature difference was carried out on this seamless super-long basement more than 500m long that is rare in northeast China region and stress and deformation analysis was conducted under the temperature effect by using MIDAS/Gen software. By strengthening structural measures and construction measures, harmful structural cracks were reduced. In response to 10m elevation difference between the northern and southern part of the site, seven times of faulting arrangements of slab ends were conducted in the basement floor and roof in the north-south direction and each step height difference is 1-5m. Reasonable seismic seams were set between tower and basement to make mechanism of slope structure more reasonable and greatly reduce the construction cost. And the bearing capacity review of the main structure, which also acted as retaining wall, was conducted under the earth pressure. Structural design of this project met the requirements and at present the main structure operated well.

Keywords:Yida Yunji project in Dalian; slope structure; super high-rise building; performance-based seismic design; super long basement

作者簡介：文元，教授級(jí)高級(jí)工程師，一級(jí)注冊結(jié)構(gòu)工程師，Email:DLJZSJ-1@vip.163.com。