某超高层建筑复杂塔冠结构设计分析  

Design analysis of complex tower crown structure of a super high-rise building

作　　者：夏恩明 XIA Enming(Xiamen Hordor Architecture&Engineering Design Group Co.,Ltd,Xiamen 361000)

机构地区：[1]厦门合立道工程设计集团股份有限公司,福建厦门361000

出　　处：《福建建筑》2024年第1期93-97,共5页Fujian Architecture & Construction

摘　　要：通过分析超高塔冠侧面开洞方案对框架-核心筒超高层结构的影响,并结合风洞试验结果,开洞方案能有效减小风荷载的体形系数。利用欧拉公式,确定空间扭转格构柱的长细比,最后通过SAUSAGE和MIDAS GEN有限元软件,对塔冠结构抗震性能和钢管结构的节点做细致分析。由于塔冠的风荷载直接影响到主体结构是否要增设加强层,目前对于此类项目造型,规范和现有研究均未明确风荷载取值。研究结果表明,通过对塔冠立面开洞处理,可以减小相应的风荷载,提高主体结构的经济性;复杂塔冠节点具有较高的安全性,整个塔冠结构具有更高的可靠度。By analyzing the impact of the side opening scheme of the super high tower crown on the frame core tube super high-rise structure,,and combining with wind tunnel test results,the opening scheme can effectively reduce the shape coefficient of wind load.Using the Euler formula,the slenderness ratio of spatial torsion lattice columns was determined.Finally,a detailed analysis was conducted on the seismic performance of the tower crown structure and the nodes of the steel pipe structure using SAUSAGE and MIDAS GEN finite element software;Due to the direct impact of the wind load on the tower crown on whether to add reinforcement layers to the main structure,At present,specifications and existing research for this type of project design have not yet clarified the value of wind load;The research results indicate that by opening holes in the tower crown facade,the corresponding wind load can be reduced,which is more economical for the main structure;Complex tower crown nodes have high safety,and the entire tower crown structure has higher reliability.

关 键 词：框架-核心筒结构 超高层建筑 复杂塔冠 风洞试验 抗震性能化设计 

分 类 号：TU3[建筑科学—结构工程]