非对称三塔连体超高层结构连廊施工方案研究OACHSSCDCSTPCD

Super high-rise conjoined structures are large and complex structures with significant time-varying characteristics.The construction of corridors,serving as links connecting towers,has a great impact on the overall structural safety,and it is necessary to study its construction plan.Taking an asymmetric three-tower super high-rise conjoined structure as the research object,a numerical model was established.The holistic lifting method and the cantilever splicing method were used as the construction schemes for the corridor,and the finite element calculation was carried out respectively.The towers'vertical deformation,differential deformation between corridors,and internal forces of the elements at the tower-corridor connections under both construction schemes were studied.The research results showed that neither of the two schemes affected the vertical deformation pattern of the conjoined structure during the overall construction process.Compared with the holistic lifting method,the cantilever splicing method led to greater vertical deformation of the tower structures,greater elevation differences at the corridor,and increased internal forces of the elements at the corridor connections during both corridor construction process and upon completion.Therefore,the holistic lifting method was more suitable for the corridor construction of the research object in this paper.