(华东建筑设计研究院有限公司, 上海 200002)

摘要: 昆明春之眼商业中心主楼建筑高度 407m,为抗震设防烈度 8 度区建筑高度超 400m 的超高层建筑之一,主楼采用巨型支撑框架-钢筋混凝土核心筒结构体系. 主要介绍了主塔楼结构设计关键点,包括结构体系、黏滞阻尼布置、消能减震设计、地基基础的设计等;采用了屈曲约束支撑 BRB、柱间黏滞阻尼器及悬臂黏滞阻尼等措施进行消能减震设计,采用弹塑性时程分析验证了消能减震措施的有效性. 同时对不同施工顺序进行了模拟分析. 结果表明,不同的施工顺序对不同类别构件的均有一定影响. 设计中需对施工顺序予以重视. 在基础设计中则着重关注了基岩起伏对塔楼不均匀沉降的影响,采取增补抗压桩和后注浆增强的形式对基岩埋深较深的区域进行加强,保证其沉降满足规范要求.

关键词: 超高层结构; 巨型支撑框架; 消能减震设计; 黏滞阻尼器; 施工顺序; 不均匀沉降

中图分类号:TU398,TU318 文献标志码:A 文章编号:1002-848X(2022)09-0036-06

DOI:10. 19701 / j. jzjg. HDY2204

Structural design of main building of Kunming Eye of Spring Commercial Center

TONG Jun, BAO Lianjin, WANG Dasui, ZHU Xiaodong, YAN Qi, REN Jibo, YAN Congzhi

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

Abstract: The architectural height of the main building of Kunming Eye of Spring Commercial Center is 407m. It is one ofthe super high-rise buildings with a building height of more than 400m in 8-degree seismic fortification intensity region. Themain building adopts structural system of mega braced frame-reinforced concrete core. The key points and overall structuralindex of the structural design of the main tower were introduced, including structural system scheme, viscous dampinglayout, energy dissipation and damping design, foundation design, etc. The seismic energy dissipation design and shockabsorption was carried out by adopting measures such as buckling restraint bracing BRB, inter-column viscous damper andoutrigger viscous damping. Elasto-plastic analysis was carried out to verify the efficiency of energy dissipation measures. Atthe same time, different construction sequence was simulated and analyzed. The results show that different constructionsequences have a certain impact on different types of structural members. Attention should be paid to the constructionsequence in structural design. In the foundation design, the impact of bedrock undulation on the uneven settlement of thetower was paid attention to. The areas with deeper bedrock buried depth were strengthened by supplementary compressionpiles and post-grouting reinforcement to ensure that the settlement meets the specification requirements.

Keywords:super high-rise building; mega braced frame; seismic energy dissipation design; viscous damper; constructionsequence; uneven settlement

∗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:童骏,硕士,高级工程师,主要从事高层建筑及复杂建筑的结构设计工作,Email:tj@ ecadi. com.

[引用本文] 童骏,包联进,汪大绥,等. 昆明春之眼商业中心主楼结构设计[ J] . 建筑结构,2022,52( 9) :36-41,103. TONG Jun, BAO Lianjin, WANG Dasui, et al. Structural design of main building of Kunming Eye of SpringCommercial Center[ J] . Building Structure,2022,52(9) :36-41,103.