- 摘 要
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(廣州容柏生建筑結構設計事務所， 廣州 510170)
［摘要］改建項目塔樓高144.6m，主體結構已封頂，因建筑布局的調整，首層以上需要全樓拆除4片主抗側力剪力墻，并重建恢復樓層，設計及施工難度很大。改建方案采用帶局部鋼框架的框架-剪力墻結構體系，施工采用基于相互約束條件的分段，同步拆、建技術方案，并確保結構在施工階段具有足夠的安全冗余度和施工質量保證率。采用YJK，MIDAS Gen軟件對施工階段結構受力進行驗算。結果表明，該施工方案能夠滿足同步拆、建過程中不同荷載工況下的受力要求，能確保施工階段的安全。
［關鍵詞］改建項目；分段、同步拆、建施工方案；拆除剪力墻；施工監(jiān)測
中圖分類號：TU318 文獻標識碼：A文章編號：1002-848X(2021)20-0050-05
Construction analysis on demolition of shear walls in existing super high-rise building
CHEN Zhaozhi, CHEN Ying, LI Shengyong, LIANG Zhiyin, LIANG Daqi
(RBS Architectural Engineering Design Associates, Guangzhou 510170， China)
Abstract:The tower of the reconstruction project is 144.6m high, and the main structure has been completed. Due to the adjustment of the building layout, it is necessary to demolish 4 main lateral shear walls in the entire building above the first floor, and rebuild and restore the floor. The design and construction are very difficult. The reconstruction plan adopts a frame-shear wall structure system with local steel frame, and the construction adopts a technical plan of segmentation, simultaneous demolition and construction based on mutual restraint conditions, and it is necessary to ensure that the structure has sufficient safety redundancy and construction quality assurance rate during the construction phase. YJK and MIDAS Gen software were used to check the structural force during the construction phase. The results show that the construction plan can meet the force requirements under different load conditions during the simultaneous demolition and construction process, and can ensure the safety of the construction phase.
Keywords:reconstruction project； plan of segmentation, simultaneous demolition and construction； demolition of shear wall； construction monitoring
作者簡介：陳招智，學士，一級注冊結構工程師，Email：chenzhaozhi@gzrbs.com。
