某立面收进超高层塔楼搭接柱结构设计和分析

引用文献：

李东存. 某立面收进超高层塔楼搭接柱结构设计和分析[J]. 建筑结构，2023，48（09）：53-58，107.

LI Dongcun. Structural design and analysis of lapped column of a super high-rise tower with elevation retraction[J]. Building Structure，2023,48（09）：53-58，107.

作者：李东存

单位：广州容柏生建筑结构设计事务所普通合伙)海口分所广州容柏生建筑结构设计事务所普通合伙)

摘要：某超高层办公塔楼结构高度245.15m,幕墙高度289.7m,高区东西侧立面收进，采用了钢管混凝土框架-钢筋混凝土核心筒混合结构体系。为实现东西侧收进4m的立面要求，进行了斜柱转换、桁架转换、搭接柱桁架转换方案的选型比较。综合考虑方案对室内观感、空间使用、净高等的建筑影响及结构受力、材料用量、工期等因素，选定了利用避难层空间设置搭接柱桁架转换的结构方案。对与搭接柱的相关结构，设定了合适的抗震等级和性能目标；对搭接柱桁架进行了考虑竖向地震影响的多工况受力分析；对搭接柱桁架转换引起承担水平力构件包括水平桁架、核心筒剪力墙、楼板进行了分析验算；对搭接柱桁架的防连续倒塌能力进行了分析验算；对关键节点进行了有限元分析。在各项分析结果的基础上，结合结构概念设计，对搭接柱转换相关构件依据性能要求采取了合适的设计措施，实现了结构的可行性和安全性。

关键词：超高层结构；高区立面收进；搭接柱；转换桁架；水平桁架；抗震性能设计；选型分析；

作者简介：李东存，学士，高级工程师，主要从事工程结构设计与研究，Email:lidongcun@gzrbs.com。

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参考文献[1] ] 顾磊，傅学怡.福建兴业银行大厦搭接柱转换结构有限元分析和预应力策略[J].建筑结构，2003(12):13-16.
[2] 董万博，吴金妹.广州生物岛商务办公楼结构设计[J].建筑结构，2014,44(3):39-44.
[3] 组合结构设计规范：JGJ 138—2016[S].北京：中国建筑工业出版社，2016.
[4] 钢结构设计标准：GB 50017—2017[S].北京：中国建筑工业出版社，2018.
[5] 超限高层建筑工程抗震设防专项审查技术要点：建质[2015]67号[A].北京：中华人民共和国住房和城乡建设部，2015.
[6] 广东省超限高层建筑工程抗震设防专项审查实施细则：粤建市[2016]20号[A].广州：广东省住房和城乡建设厅，2016.
[7] 建筑抗震设计规范：GB 50011—2010[S].2016年版.北京：中国建筑工业出版社，2016.
[8] 高层建筑混凝土结构技术规程：JGJ 3—2010[S].北京：中国建筑工业出版社，2011.
[9] 高层民用建筑钢结构技术规程：JGJ 99—2015[S].北京：中国建筑工业出版社，2016.
[10] 混凝土结构设计规范：GB 50010—2010[S].2015年版.北京：中国建筑工业出版社，2015.

Structural design and analysis of lapped column of a super high-rise tower with elevation retraction

LI Dongcun

(Haikou RBS Architectural Engineering Design Associates RBS Architectural Engineering Design Associates)

Abstract: The structural height of a super high-rise office tower is 245.15m, the height of the curtain wall is 289.7m, the east and west facades of the high area are retracted, and the concrete filled steel tube frame-reinforced concrete core tube hybrid structure system is adopted. In order to achieve the elevation requirement of retracting 4m from the east to the west, the selection and comparison of inclined column conversion, truss conversion, and lapped column truss conversion schemes were carried out. Comprehensively considering the architectural impact of the scheme on the indoor appearance, space use, net height, and structural stress, material consumption, construction period and other factors, and the structural scheme of using the refuge floor space to set lapped column truss conversion was selected. For the structures related to the lapped column, appropriate seismic grade and performance target were set. The stress analysis of lapped column truss under multiple working conditions considering the impact of vertical earthquake was carried out. The analysis and checking calculation of the components bearing horizontal force caused by the conversion of lapped column truss were carried out, including the horizontal truss, the core tube shear wall, and the floor slab. The continuous collapse resistance of lapped column truss was analyzed and checked. The finite element analysis of the key nodes was carried out. On the basis of various analysis results, combined with the structural conceptual design, appropriate design measures were taken for the components related to the transfer of lapped columns according to the performance requirements, which realize the feasibility and safety of the structure.

Keywords: super high-rise structure; elevation retraction in high area; lapped column; transfer truss; horizontal truss; performance-based seismic design; selection analysis

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