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(廣州容柏生建筑結(jié)構(gòu)設(shè)計事務(wù)所， 廣州 510170)
［摘要］改建項目塔樓高144.6m，主體結(jié)構(gòu)已封頂，因建筑布局的調(diào)整，首層以上需要全樓拆除4片主抗側(cè)力剪力墻，充分考慮原結(jié)構(gòu)剛度分布特點及改建施工要求，改建方案采用帶局部鋼框架的框架-剪力墻結(jié)構(gòu)體系。結(jié)構(gòu)設(shè)計除應(yīng)滿足理論受力要求外，更以減少原結(jié)構(gòu)的損傷，提高結(jié)構(gòu)可靠度為目標(biāo)；結(jié)構(gòu)構(gòu)造著重于新、舊混凝土連接的可靠性，施工的可行性，并以提高施工質(zhì)量保證率作為目標(biāo)。分別采用YJK，ETABS，SAUSAGE軟件對改建結(jié)構(gòu)進行分析，分析結(jié)果表明，結(jié)構(gòu)各項指標(biāo)能夠滿足規(guī)范要求。
［關(guān)鍵詞］改建項目；部分鋼框架體系；框架剪力墻；剛度補償分析；拆除剪力墻
中圖分類號：TU318 文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)20-0043-07
Structural analysis of demolition of shear walls in existing super high-rise building
CHEN Zhaozhi, CHEN Ying, LI Shengyong, LIANG Zhiyin
(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, 4 main lateral shear walls need to be demolished in the entire building above the first floor. Fully considering the rigidity distribution characteristics of the original structure and the reconstruction construction requirements, frame-shear wall structure system with local steel frame was adopted in the reconstruction plan. The structural design should not only meet the theoretical stress requirements, but also aim to reduce the damage of the original structure and improve the reliability of the structure; the structural construction target focuses on the reliability of the new and old concrete connections, the feasibility of construction, and aims to improve the quality rate of construction. YJK, ETABS and SAUSAGE softwares were used to analyze the reconstructed structure. The analysis results show that the various indicators of the structure can meet the requirements of the specification.
Keywords:reconstruction project； partial steel frame system； frame-shear wall； stiffness compensation analysis； demolition of shear wall
作者簡介：陳招智，學(xué)士，一級注冊結(jié)構(gòu)工程師，Email：chenzhaozhi@gzrbs.com。
