- 摘 要
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（1 中鐵建工集團有限公司設計院， 北京 100070； 2 北京富力城房地產(chǎn)開發(fā)有限公司， 北京 100022）
［摘要］目前結構規(guī)范中對于豎向荷載作用下結構水平位移計算和控制沒有明確要求，常規(guī)高層建筑無需考慮豎向荷載對水平位移的影響，但對于帶高位大懸挑的建筑來說，懸挑部位豎向荷載對結構水平位移影響較大。以某項目為例，對帶高位大懸挑的框架-核心筒超高層結構的水平位移進行了分析研究，主要分析了帶高位大懸挑的高層建筑的水平位移特征、樓板剛度對水平位移的影響、核心筒與框架之間的變形協(xié)調等，這些都與常規(guī)高層建筑有明顯不同。在分析研究的基礎上，提出了對帶高位大懸挑的框架-核心筒超高層結構控制水平位移和層間位移角的方法，總結歸納了帶高位大懸挑的高層建筑在進行設計時的一些要點及相應的建議。
［關鍵詞］高位大懸挑； 豎向荷載； 水平位移； 樓板剛度
中圖分類號：TU355文獻標識碼：A文章編號：1002-848X(2017)24-0017-05
Analysis on horizontal displacement of high-rise buildings with high-position large cantilever
Zhao Jianmin1, Wan Yixiu2
(1 The Design Institute of China Railway Construction Engineering Group, Beijing 100070, China; 2 Beijing R&F Properties Development Co., Ltd., Beijing 100022, China)
Abstract:At present, there are no clear requirements for calculation and control of structural horizontal displacement under vertical loads. The effect of vertical load on the horizontal displacement does not need to be considered in design of conventional high-rise buildings, but for the buildings with high-position large cantilever, the vertical load on the cantilever has a great impact on the horizontal displacement of the structure. Taking a project as an example, the horizontal displacement of super high-rise frame-corewall structures with high-position large cantilever was analyzed, mainly including its horizontal displacement characteristics, impact of floor stiffness on horizontal displacement, and deformation coordination between corewall and frame. These features were obviously different from those of conventional high-rise buildings. On the basis of analysis, methods were put forward for horizontal displacement control and interlayer displacement angle control on super high-rise frame-corewall structures with high-position large cantilever. Some key points and corresponding suggestions were summarized for high-rise buildings with high-position large cantilever.
Keywords:high-position large cantilever; vertical load; horizontal displacement; slab rigidity
作者簡介：趙建敏，本科，總工程師，Email: sephawk@126.com。
