(华东建筑设计研究院有限公司, 上海 200002)

摘要: 天津高银 117 大厦塔楼结构大屋面高度 596m,高宽比 9. 5,为目前中国在建结构高度最高的超高层建筑.主要介绍了塔楼的结构布置方案、基础设计、主要构件和节点设计以及施工措施的影响. 塔楼采用巨型框架支撑筒-钢筋混凝土核心筒抗侧力体系,保证结构刚度和构件承载力满足规范要求. 采用超长钻孔灌注桩和 6. 5m 厚筏板作为结构基础. 沉降分析及观测结果表明,结构封顶 4. 5 年后最大沉降值约 100mm. 巨型钢管混凝土柱截面积达 45m2,尺度较大,试验结果表明巨柱截面仍满足平截面假定. 对巨柱复杂连接节点进行了有限元分析和试验研究,在保证安全性的基础上优化了节点构造. 通过施工模拟,分析了施工措施对主体结构的影响,并给出了核心筒领先施工的高度建议.

关键词: 天津高银 117 大厦; 超高层建筑; 巨型框架支撑筒; 异形多腔体钢管混凝土柱; 巨型节点; 筏板基础

中图分类号:TU398,TU318 文献标志码:A 文章编号:1002-848X(2022)09-0010-07

DOI:10. 19701 / j. jzjg. HDY2205

Structural design summary of the tower of Tianjin Goldin 117 Building

BAO Lianjin, TONG Jun, CHEN Jianxing, WU Jiangbin, ZHOU Jianlong, WANG Dasui

(East China Architectural Design & Research Institute Co. , Ltd. , Shanghai 200002, China)

Abstract: The tower structure of Tianjin Goldin 117 Building has a large roof height of 596m and a height-to-width ratio of9. 5. It is currently the highest super high-rise building under construction in China. The structural layout scheme,foundation design, main component and node design and the influence of construction measures of the tower were mainlyintroduced. The tower adopts anti-lateral force system of mega frame braced tube-reinforced concrete core tube to ensurethat the structural rigidity and bearing capacity of component meet the requirements of the codes. Using super-long boredpiles and 6. 5m thick rafts as the structural foundation. The settlement analysis and observation results show that themaximum settlement value of the structure after 4. 5 years of capping is about 100mm. The cross-sectional area of the megaconcrete-filled steel tube column is 45m2, and the scale is relatively large. The test results show that the cross-section ofthe giant column still meets the assumption of flat cross-section. The finite element analysis and experimental research werecarried out on the complex connection nodes of the giant columns, and the joint structure was optimized on the basis ofensuring the safety. Through the construction simulation, the influence of the construction measures on the main structurewas analyzed, and the height suggestion for the leading construction of the core tube was given.

Keywords:Tianjin Goldin 117 Building; high-rise building; mega frame braced tube; special-shaped multi-cavity concretefilled steel tube column; giant node; raft foundation

∗国家自然科学基金资助项目(5207804) ,“上海超高层建筑设计工程技术研究中心” 建设项目( 14DZ2252800) ,华建集团科研项目(19-1 类-0142-结) .

第一作者:包联进,博士,教授级高级工程师,主要从事高层建筑及复杂建筑的结构设计,Email:lianjin_bao@ ecadi. com.

[引用本文] 包联进,童骏,陈建兴,等. 天津高银 117 大厦塔楼结构设计综述[ J] . 建筑结构,2022,52( 9) :10-16.BAO Lianjin,TONG Jun,CHEN Jianxing,et al. Structural design summary of the tower of Tianjin Goldin 117 Building[ J] .Building Structure,2022,52(9) :10-16.