超高层塔楼连廊钢结构提升关键技术研究
作者简介:
王成武,正高级工程师,E-mail:185088043@ qq. com
作者单位:
1.中国建筑第五工程局有限公司,湖南长沙 410000; 2.清华大学土木工程系,北京 100084; 3.中建五局华南建设有限公司,广东深圳 518000
基金项目:
∗国家自然科学基金面上项目(52378164);河北省科技计划资助项目(22284501Z);中建五局重点研发项目:超高层项目智能建造成套关键技术研发及应用(CSCEC5B-2024-5);中施企协青年课题:基于结构检测的复杂连廊施工安全控制方法研究( 2024-B-011);中施企协青年课题:超重大跨度连廊及上托下挂幕墙异型钢结构高空施工关键技术(2024-B-008)
摘要:
超高层塔楼连廊钢结构在提升到合龙过程中存在多种失稳风险,可能引发重大安全事故及经济损失。以深超总 C 塔工程为例,采用全过程分析方法,系统研究连廊提升施工过程的风险点,包括连廊脱离胎架、正常提升到最后合龙的各阶段。利用有限元软件 ANSYS 进行数值分析,重点研究了连廊脱离胎架全过程的稳定性、提升过程中索组失效的安全性以及环境温度变化对结构变形和合龙的影响。研究旨在最大限度地降低安全风险发生的可能性,并确保施工方案在风险发生时具备足够的安全储备。

English:
There are many risks of instability in the process of lifting and closing the corridor steelstructure of a super high-rise tower,which may lead to major safety accidents and economic losses.Taking the Tower C project of the Shenzhen Bay Super Headquarters Base as an example, the wholeprocess analysis method is used to systematically study the risk points of the corridor lifting constructionprocess, including the various stages of the corridor detaching from the support frame, normal lifting, andfinal closure. The finite element software ANSYS was used for numerical analysis, focusing on thestability of the complete process of the corridor detaching from the support frame, the safety of the cablegroup failure during the lifting process, and the influence of environmental temperature changes onstructural deformation and closure. The research aims to minimize the possibility of safety risks andensure that the construction plan has sufficient safety reserves when risks occur.