- 摘 要
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（1 深圳市同濟人建筑設計有限公司， 深圳 518000; 2 同濟大學建筑研究設計院（集團）有限公司， 上海 200082）
［摘要］騰訊濱海大廈為連體巨型結構，3道連接體與兩棟塔樓形成整體剛度，以抵御側向荷載。樓板是連接體的重要組成部分，在荷載組合作用下，樓板出現裂縫，將出現剛度退化，進而導致連接體出現內力重分布。以中區(qū)和高區(qū)連接體為研究對象，分析樓板剛度退化所帶來的結構整體性能變化和連接體構件的內力重分布情況。結果表明,連接體樓板剛度退化對結構整體性能影響較小，但在連接體內會出現明顯的內力重分布，內力重分布具有顯著的特征，連體結構的不同樓層其內力重分布程度不一樣，不同類型和不同部位構件內力重分布程度也不一樣，在連體子結構的設計中應充分考慮其影響。
［關鍵詞］騰訊濱海大廈； 連體結構； 樓板； 剛度退化； 內力重分布
中圖分類號：TU398-2文獻標識碼：A文章編號：1002-848X(2019)21-0005-06
Tencent Seafront Tower: influence study of stiffness of connected floor
Deng Huadong1, Sun Ping1, He Zhijun2
（1 Tongji Architects Co., Ltd., Shenzhen 518000, China; 2 Tongji Architectural Design (Group) Co., Ltd., Shanghai 200082, China）
Abstract:Tencent Seafront Tower is a giant connected structure with three connected bodies and two towers forming the overall stiffness to resist lateral loads. Slab is an important part of the connected body. Under the combined action of loads, cracks appear in the floor, and stiffness degradation occurs, leading to the redistribution of internal forces in the connected body. Taking the connected bodies in the middle and high regions of the structure as the research objects, the overall structural performance changes and internal force redistribution of the connected bodies caused by the degradation of floor stiffness were analyzed. The results show that the degradation of slab stiffness has little effect on the overall performance of the structure, but there will be obvious redistribution of internal force in the connected body. Internal force redistribution has significant characteristics. The redistribution degree of internal force is different in different slabs of connected structure, and the redistribution degree of internal force in different types and parts is also different. The influence of internal force redistribution should be fully considered in the design of connected substructures.
Keywords:Tencent Seafront Tower; connected structure; slab; stiffness degradation; internal force redistribution
作者簡介：鄧華東，碩士，一級注冊結構工程師， Email: tuolei213@163.com。
