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    林穎孜       (福建省建筑設(shè)計(jì)研究院  福州 350001)

[提要]  高層建筑樁土間有著共同作用，承臺(tái)、筏板對(duì)上層荷載起著分擔(dān)作用，以某高層建筑基礎(chǔ)樁-土-筏共同工作的設(shè)計(jì)為例，對(duì)共同作用的分析方法及現(xiàn)場(chǎng)測(cè)試進(jìn)行分析、比較與探討，說(shuō)明其經(jīng)濟(jì)效益顯著。
[關(guān)鍵詞]  共同作用  樁土支承體系  剛度矩陣  變形協(xié)調(diào)

The joint action of piles-soil-raft for high-rise building is explained, as well as contribution of cap and raft towards load-carrying capacity. Taking an actual high-rise building as example, the author demonstrates its outstanding economic benefit by analyzing, comparing and investigating the analysis process and field testing for the joint action of piles-soil-raft of the building.
Keywords:  joint action;  load-bearing system;  piles-soil-raft;  stiffness matrix; deformation compatibility