- 摘 要
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(南京長江都市建筑設計股份有限公司, 南京 210002)
摘要: 結合某實際工程項目研究了框架-核心筒超高層結構中框架斜柱設計的關鍵問題,通過理論分析及模型對比研究了斜柱的傳力機制及對主體結構的影響. 研究表明:對于斜柱內傾框架,斜柱軸力水平分力可減小斜柱的剪力,對于斜柱外傾框架,斜柱軸力水平分力會增大斜柱的剪力;斜柱傾角變化樓層的框架梁軸力均明顯大于其他各層,在結構設計時為確保框架梁的有效傳力,需對框架梁進行在拉力作用下的強度和裂縫驗算;設計時可僅考慮
框架梁的水平傳力,樓板可作為承擔水平力的二道防線.
關鍵詞: 超高層建筑; 框架-核心筒結構; 斜柱; 受力分析
中圖分類號:TU375 文獻標志碼:A 文章編號:1002-848X(2022)05-0099-08
DOI:10. 19701 / j. jzjg. LS210027
Force analysis and related design of frame inclined columnin frame-core tube super high-rise structure
JIANG Han, ZHAO Xuefei, LIU Jinlong, SONG Jiuxiang
(Nanjing Yangtze River Urban Architectural Design Co., Ltd., Nanjing 210002, China)
Abstract: Based on a practical engineering project, the key problems of frame inclined column design in frame-core tubesuper high-rise structure were studied. Through theoretical analysis and model comparison, the force transfer mechanism ofinclined column and its influence on the main structure were studied. The results show that: for the inward inclined frame,the horizontal component of inclined column axial force can reduce the inclined column shear, for the outward inclinedframe, the horizontal component of inclined column axial force can increase the inclined column shear. The axial force ofthe frame beam in the floor with the change of inclined column slope is significantly greater than that in other floors. Inorder to ensure the effective force transmission of the frame beam, the strength and crack under the tensile force need to bechecked in the structural design. In the design, only the horizontal force transfer of frame beam need to be considered, andthe floor can be used as the second line of defense to bear the horizontal force.
Keywords:super high-rise building; frame-core tube structure; inclined column; performance analysis
第一作者:江韓,博士,研究員級高級工程師,一級注冊結構工程師,主要從事結構設計工作,Email: 892431362@ qq. com.
[引用本文] 江韓,趙學斐,劉金龍,等. 框架-核心筒超高層結構中框架斜柱的受力分析與相關設計[ J] . 建筑結構,2022,52 ( 5) : 99-106. JIANG Han, ZHAO Xuefei, LIU Jinlong, et al. Force analysis and related design of frameinclined column in frame-core tube super high-rise structure[ J] . Building Structure,2022,52(5) :99-106.
