巨型非对称悬挂纯钢结构塔楼施工变形控制  

CONSTRUCTION DEFORMATION CONTROL OF MEGA ASYMMETRICAL SUSPENDED PURE STEEL STRUCTURE TOWER

作　　者：高辉 陈雷 甘明彦 温传亮 廖彪 曾志文 GAO Hui;CHEN Lei;GAN Mingyan;WEN Chuanliang;LIAO Biao;ZENG Zhiwen(Shenzhen Land Investment and Development Center,Shenzhen 518000,China;China Construction Science and Industry Corporation Ltd.,Shenzhen 518000,China)

机构地区：[1]深圳市土地投资开发中心,广东深圳518000 [2]中建科工集团有限公司,广东深圳518000

出　　处：《工业建筑》2020年第9期181-185,共5页Industrial Construction

基　　金：“十三五”国家重点研发计划(2016YFC0701608)。

摘　　要：深圳某项目结构形式为“带悬挂层的框架-支撑结构”,由核心筒和6个非对称错层布置的巨型悬挂外框组成。根据安装顺序,采用有限元软件MIDAS对全施工过程进行模拟分析及变形计算。通过核心筒反向预偏与外框结构预抬控制塔楼施工变形。同时根据施工模拟对比分析选择最优的支撑卸载顺序,从而达到结构整体变形控制。经由全站仪复测发现,卸载前后变形值与理论计算值基本吻合。The structure form of a project in shenzhen is“frame-support structure with suspension layer”,which consists of core tube and six mega suspension frames arranged by asymmetric staggered layers.According to the installation sequence,the finite element software MIDAS was used to simulate the whole construction process and calculate the deformation.The deformation of tower construction was controlled by core tube reverse pre-deflection and outer frame structure pre-lifting.At the same time,according to the comparative analysis of construction simulation,the optimal support unloading sequence was selected to achieve the overall deformation control of the structure.It was found that the deformation value before and after unloading was basically in accordance with the theoretical calculation.

关 键 词：巨型非对称悬挂外框 超高层 预变形 施工模拟 变形控制 

分 类 号：TU974[建筑科学—建筑技术科学]