江门市档案中心钢结构吊装施工仿真分析  

CONSTRUCTION SIMULATION OF THE STEEL STRUCTURE HOISTING FOR JIANGMEN ARCHIVE CENTER

作　　者：李成杰 Li Cheng-jie

机构地区：[1]中铁建设集团南方工程有限公司,广州511458

出　　处：《建筑技术开发》2022年第22期115-117,共3页Building Technology Development

摘　　要：江门市档案中心建筑属于大型公共建筑综合体,其主要结构为A、B、C、D四栋塔楼及连接塔楼的连体钢结构。连体钢结构共有6个提升分区,由于其结构构件尺寸较大,以致相应吊装施工过程中的构件内力较大且分布情况复杂,因此本工程连体钢结构的施工采用了“低空拼装,整体提升”的思路。针对不同施工阶段对吊装提升结构和提升平台进行有限元建模和应力变形分析。考虑每个施工阶段的不同情况和实际结构环境的复杂性,分别对吊装提升区和A、B、C、D四座塔楼进行有限元建模分析。结果显示,在提升过程中,一区至六区的整体位移变化较小,最大应力出现在提升平台与被提升结构的连接位置,最小应力出现于该部分的支座位置,两者均在钢结构应力容许范围内,即有限元的计算结果验证了吊装方案安全可行。The Jiangmen Archive Center is a large public building complex with a total construction.Its main structure consists of four towers A,B,C and D,which are connected by the steel conjoined structures.By locations,the steel conjoined structures are divided into six hoisting parts.Due to the large sizes,structural complexity and high internal force values during the hoisting process,the strategy of“Ground assembly,integral lifting”is adopted.In this work,a finite element simulation is presented for the stress and deformation analysis of hoisting structure and lifting platform for different construction stages.Taking into considering the different conditions of each construction stage and the complexity of the actual construction environment,the finite element analysis is carried out for the six hoisting parts and four towers A,B,C and D,respectively.Numerical results show that in the steel structure hoisting process,the displacement variation is not significant for all six hoisting parts,and the maximum stress appears at the connections between the lifting platforms and the conjoined steel structures,and the minimum stress occurs at the corresponding supports.All stress values in the conjoined steel structures and lifting platforms by finite element simulation are less than given tolerable stresses,which indicate that the hoisting construction of steel structures for the Jiangmen Archive Center is safe and feasible.

关 键 词：有限单元法 连体钢结构 提升施工 提升平台 应力分析 

分 类 号：TU74[建筑科学—建筑技术科学]