- 摘 要
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（奧雅納工程顧問， 上海 200031）
［摘要］上海某項目地鐵上蓋綜合體貫通12，13號地鐵車站，其地下空間結(jié)構(gòu)與車站連成整體且不設(shè)縫。設(shè)計難點一方面在于辦公塔樓緊鄰地鐵車站且局部裙樓直接坐落在地鐵車站上方，需謹(jǐn)慎考慮上蓋綜合體對地鐵車站的沉降影響；另一方面主體結(jié)構(gòu)存在扭轉(zhuǎn)不規(guī)則、抗側(cè)力構(gòu)件不連續(xù)、塔樓偏置等多項超限。詳細(xì)介紹了地鐵上蓋綜合體的結(jié)構(gòu)體系，以及針對超限部分所采取的構(gòu)造措施、基礎(chǔ)設(shè)計、沉降控制及減小對地鐵附加影響的措施。地鐵的附加沉降對上部結(jié)構(gòu)尤為敏感，應(yīng)盡可能考慮減輕上部結(jié)構(gòu)自重，優(yōu)化結(jié)構(gòu)布置；可通過合理的樁基布置，采取樁尖注漿等手段減小基礎(chǔ)沉降，從而減輕對地鐵的附加影響。
［關(guān)鍵詞］地鐵上蓋； 結(jié)構(gòu)設(shè)計； 基礎(chǔ)設(shè)計； 不均勻沉降； 樁端注漿
中圖分類號：TU318文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)14-0019-06
Structural design of a complex building project over the subway station in Shanghai
Sun Lu
(Arup, Shanghai 200031, China)
Abstract:The complex building project over the subway station in Shanghai is located at the intersection of Shanghai metro line 12 and 13 stations, and its underground space structure is connected with the subway station as a whole without joints. One of the design difficulties is that the office tower is close to the subway station and part of podium is sitting right above subway station. The influence of the complex building over the subway station on the settlement should be considered carefully; on the other hand, the main structure has many out-of-code items including torsional irregularities, discontinuous lateral force resistance components and eccentrically placed tower building. The structural system of the complex building over the subway station, as well as the construction measures against out-of-code items, foundation design, additional influence of settlement control and reduction on the complex building over the subway station were introduced. According to the study, the building over the subway station is especially sensitive to the additional settlement of the subway station brought about by superstructure, so the design should reduce the weight of the structure as far as possible and optimize the structural arrangement. Besides, the additional influence on the subway station can be reduced by the reasonable pile foundation arrangement with pile end grouting measure to reduce settlement of the foundation.
Keywords:building over the subway station; structural design; foundation design; differential settlement; pile end grouting
作者簡介：孫璐，碩士，工程師，Email：lu.sun@arup.com。
