中粮前海总部大楼结构设计难点分析与处理  

Analysis and treatment on structural design difficulties of COFCO Qianhai Headquarter Building

作　　者：练贤荣 梁爱婷 项兵 林超伟 LIAN Xianrong;LIANG Aiting;XIANG Bing;LIN Chaowei(Huasen Architecture&Engineering Design Consultants Ltd.,Shenzhen 518054,China;PTI Engineering Design Consultancy Shenzhen Co.,Ltd.,Shenzhen 518053,China)

机构地区：[1]深圳华森建筑与工程设计顾问有限公司,深圳518054 [2]柏涛国际工程设计顾问(深圳)有限公司,深圳518053

出　　处：《建筑结构》2024年第9期10-16,共7页Building Structure

摘　　要：中粮前海总部大楼项目为复杂超高层结构,塔楼采用带1道伸臂桁架的钢管混凝土框架-钢筋混凝土核心筒结构。核心筒偏心布置,局部采用斜柱转换,高区采用张拉索幕墙结构附着在主体结构。介绍了偏筒结构设计的策略;对斜柱转换的特殊节点设计进行分析;对超大张拉索幕墙结构与主塔楼结构构件的节点进行了受力分析。结果表明,偏筒结构通过对核心筒采用不等墙厚设计可以有效地减少偏心,同时在核心筒墙内设置型钢可以有效抵抗核心筒偏置带来的拉力;合理设置桁架结构可以有效地抵抗拉索幕墙传递的扭矩和拉力;圆形柱和方形柱转换节点采用三道环板转换可以高效地实现节点力转换且方便施工。COFCO Qianhai Headquarter Building project is a complex super high⁃rise structure,and the tower adopts a concrete⁃filled steel tube frame⁃reinforced concrete core tube structure with a boom truss.The core cylinder is arranged eccentrically with localized diagonal column conversion,and the high area is attached to the main structure by the tension cable curtain wall structure.The strategy of eccentric cylinder structure design was introduced.The design of special joint for the inclined column conversion was analyzed.The stress of joint for the super large tensile cable curtain wall and the structural members of the main tower was analyzed.The results show that eccentricity can effectively be reduced by adopting unequal wall thickness design for the core cylinder,and at the same time,the steel sections set up in the core cylinder wall can effectively resist the tensile force brought by the core cylinder offset.The reasonable setting of the truss structure can effectively resist the torque and tensile force transmitted by the tensile cable curtain wall.and the conversion joint of circular and square columns nodes by using the three⁃channel ring⁃plate conversion can efficiently realize the conversion of joint force and is convenient for the construction.

关 键 词：核心筒偏置 斜柱 张拉索幕墙 悬挑桁架 超高层结构 

分 类 号：TU391[建筑科学—结构工程]