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。
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 mainly introduced. The tower adopts anti-lateral force system of mega frame braced tube-reinforced concrete core tube to ensure that the structural rigidity and bearing capacity of component meet the requirements of the codes. Using super-long bored piles and 6. 5m thick rafts as the structural foundation. The settlement analysis and observation results show that the maximum settlement value of the structure after 4. 5 years of capping is about 100mm. The cross-sectional area of the mega concrete-filled steel tube column is 45m2, and the scale is relatively large. The test results show that the cross-section of the giant column still meets the assumption of flat cross-section. The finite element analysis and experimental research were carried out on the complex connection nodes of the giant columns, and the joint structure was optimized on the basis of ensuring the safety. Through the construction simulation, the influence of the construction measures on the main structure was analyzed, and the height suggestion for the leading construction of the core tube was given.
作者
包联进
童骏
陈建兴
吴江斌
周建龙
汪大绥
BAO Lianjin;TONG Jun;CHEN Jianxing;WU Jiangbin;ZHOU Jianlong;WANG Dasui(East China Architectural Design&Research Institute Co.,Ltd.,Shanghai 200002,China)
出处
《建筑结构》
CSCD
北大核心
2022年第9期10-16,共7页
Building Structure
基金
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)。
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
Tianjin Goldin 117 Building
high-rise building
mega frame braced tube
special-shaped multi-cavity concretefilled steel tube column
giant node
raft foundation
