- 摘 要
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(中國建筑東北設計研究院有限公司， 沈陽 110006)
［摘要］中國建筑千米級摩天大樓高度為1180m，抗側力體系采用巨型組合結構體系。針對本工程的特點進行基礎方案比選，根據(jù)比選結果最終采用筏板基礎，主樓下筏板厚度為10m，并設抗拔錨桿解決純地下室區(qū)域抗浮問題。對基礎沉降問題，采用了YJK軟件進行有限元計算并考慮上部結構剛度的影響。計算結果表明，由于天然地基為低壓縮性硬質巖，結構整體沉降很小，可忽略主樓與純地下室間沉降差的影響，筏板基礎可不設沉降縫。同時對超高層建筑及中國建筑千米級摩天大樓的基礎埋置深度問題進行了探討。
［關鍵詞］千米級摩天大樓； 巨型組合結構體系； 筏板基礎； 基礎埋深
中圖分類號：TU973， TU47文獻標識碼：A文章編號：1002-848X(2017)03-0019-05
Design and research on foundation of the 1 000m-high high skyscraper of CSCEC
Gao Jian， Dong Zhifeng， Chen Yong， Chen Peng, Wu Yihong， Wu Di
(China Northeast Architectural Design & Research Institute Co., Ltd., Shenyang 110006, China)
Abstract:Mega composite structural system is adopted to resist lateral forces in the 1 000m-high skyscraper of CSCEC with the height of 1 180m. Foundation scheme selection and comparison were conducted according to the characteristics of this project. Raft foundation was used through the scheme comparison results. The raft thickness under the main building is 10m, and the uplift anchors were set in partial basement area as an anti-floating design measure. The YJK software was used to conduct finite element calculation on foundation settlement issue considering the impact of the superstructure stiffness. The calculation results show that because the natural foundation is hard rock of low compressibility, the overall structural settlement is negligible and the settlement difference between the main building and pure basement can be neglected. Raft foundation can be without settlement joints. At the same time, the embedded depth of foundation of super high-rise building and 1 000m-high skyscraper of CSCEC were discussed.
Keywords:1 000m-high skyscraper; mega composite structure system; raft foundation; embedment depth of foundation
*中建股份科技研發(fā)課題（CSCEC-2010-Z-01-02）。
作者簡介：高鍵，碩士，工程師，Email:goalkp@126.com。
