摘要
改建项目塔楼高144.6m,主体结构已封顶,因建筑布局的调整,首层以上需要全楼拆除4片主抗侧力剪力墙,并重建恢复楼层,设计及施工难度很大。改建方案采用带局部钢框架的框架-剪力墙结构体系,施工采用基于相互约束条件的分段,同步拆、建技术方案,并确保结构在施工阶段具有足够的安全冗余度和施工质量保证率。采用YJK,MIDAS Gen软件对施工阶段结构受力进行验算。结果表明,该施工方案能够满足同步拆、建过程中不同荷载工况下的受力要求,能确保施工阶段的安全。
The tower of the reconstruction project is 144.6 m 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.
作者
陈招智
陈颖
李盛勇
梁智殷
梁达琪
CHEN Zhaozhi;CHEN Ying;LI Shengyong;LIANG Zhiyin;LIANG Daqi(RBS Architectural Engineering Design Associates,Guangzhou 510170,China)
出处
《建筑结构》
CSCD
北大核心
2021年第20期50-54,59,共6页
Building Structure
关键词
改建项目
分段、同步拆、建施工方案
拆除剪力墙
施工监测
reconstruction project
plan of segmentation
simultaneous demolition and construction
demolition of shear wall
construction monitoring
作者简介
陈招智,学士,一级注册结构工程师,Email:chenzhaozhi@gzrbs.com。
