達旗廣場S5#樓基礎(chǔ)設(shè)計
王 金， 何相宇， 張淮湧
- 摘 要
-
王 金， 何相宇， 張淮湧
（中國建筑設(shè)計研究院，北京 100044）[摘要] 介紹了高層主樓與多層裙房連體結(jié)構(gòu)的基礎(chǔ)設(shè)計。為了實現(xiàn)樁基規(guī)范中提到的調(diào)平設(shè)計，一方面通過適當增強主樓基礎(chǔ)剛度，減弱裙房基礎(chǔ)剛度，減小兩者之間沉降差異；另一方面對于高層框一筒結(jié)構(gòu)主樓，通過調(diào)整內(nèi)筒及外框筏板下樁距，實現(xiàn)變剛度，減弱了碟形沉降效應，基礎(chǔ)各項計算參數(shù)均滿足設(shè)計規(guī)范。在樁筏基礎(chǔ)計算中，考慮了上下部結(jié)構(gòu)的共同工作，所得計算結(jié)果更符合實際。在運用文克勒模型計算樁筏基礎(chǔ)時，通過合理選取基床剛度系數(shù)，可使內(nèi)力、沉降計算結(jié)果更接近實際，從而簡化設(shè)計，同時節(jié)省材料。
[關(guān)鍵詞] 樁筏基礎(chǔ)；地基變剛度調(diào)平；上下部共同工作；基床系數(shù)
中圖分類號：TU473 文獻標識碼：A 文章編號：1002-848X(2012) Sl-0862-03
Foundation design of S5# building in Daqi Square
Wang Jin, He Xiangyu, Zhang Huaiyong
( China Architecture Design ＆Research Group, Beijing 100044, China)
Abstract: The foundation design of a connected structure between a tall bLulding and a multi-storey building was introduced. The settlement differences was reduced by increasing the foundation stiffness of the main building and wakening the foundation stiffness of the annex. In order to reduce the disk-shape settlement distribution, the pile spacing of core tube and extemal frame was adjusted. The optinuzation design was aclueved and the calculation of the foundation can meet the design code. In the calculation of the foundation, the interaction of superstructure-foundation-pile-soil was analyzed, the results was more realistic. When using WENKLER model to calculate the foundation, the stiffness coefficient of subgrade should be logical selected, wluch can simplify the design and save the materials.
Keywords: piled raft foundation; foundation stiffness adjustment; interaction of superstructure and foundation; stiffness coefficient of subgrade
