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(中國(guó)建筑科學(xué)研究院地基所，北京 100013)
［摘要］通過(guò)室內(nèi)大型模型試驗(yàn)，對(duì)圓形框筒高層結(jié)構(gòu)大底盤(pán)框筏基礎(chǔ)與地基的共同作用問(wèn)題進(jìn)行了試驗(yàn)研究，得出基底反力和基礎(chǔ)變形的分布規(guī)律及主樓豎向荷載向外框柱轉(zhuǎn)移的特征。大底盤(pán)框筏基礎(chǔ)的設(shè)計(jì)，應(yīng)考慮共同作用引起的主樓荷載向外框柱轉(zhuǎn)移的現(xiàn)象，滿(mǎn)足核心筒、主樓整體及外框柱的抗沖切承載力要求；主樓與裙房交界處的基礎(chǔ)、基礎(chǔ)四角及裙房頂層是這類(lèi)結(jié)構(gòu)的薄弱環(huán)節(jié)，需加強(qiáng)。
［關(guān)鍵詞］圓形框筒高層結(jié)構(gòu)；大底盤(pán)框筏基礎(chǔ)；反力；變形；共同作用
Test on deformation and reaction of large-area thick raft foundation under framed circular high-rise structure
Di Daohuai(China Academy of Building Research, Beijing 100013, China)
Abstract:Based on simulated test, the interaction of large-area thick raft foundation under framed circular high-rise structure and soil is discusses. The characteristic of deformation and reaction have been described and the transference of the vertical loads of the main building from inner-tube to the out frame columns has been measured. Those positions which should be strengthened have been pointed out.In the design of large-area thick raft foundation, the transference of the vertical loads of the main building from inner-tube to the out frame columns should be considered,and the anti-impact capacity of inner-tube,main building,and out frame columns must be demanded. The foundation between the main building and the wing house,the four corners of the foundation,and the top of the wing house are weak areas which should be strengthend.
Keywords:circular tall building with inner tube-outer frame column; large-area thick raft foundation under framed structure;  reaction; deformation; interaction
作者簡(jiǎn)介：邸道懷，博士，一級(jí)注冊(cè)結(jié)構(gòu)工程師，一級(jí)注冊(cè)建造師，Email:mstar420@sina.com。