全框支厚板转换高层结构质心偏心率振动台试验与数值模拟研究  

Shaking Table Tests and Numerical Simulation Study on the Eccentricity of the Center of Mass of Full-Frame-Supported High-Rise Building Structure with Thick Plate Transfer

作　　者：李浩 汪大洋[1] 赵东卓 谢桢 LI Hao;WANG Dayang;ZHAO Dongzhuo;XIE Zhen(School of Civil Engineering of Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广州大学土木学院,广州510006

出　　处：《工业建筑》2024年第5期141-149,共9页Industrial Construction

基　　金：国家自然科学基金面上项目(52178467);广东省自然科学基金面上项目(2020A1515010993)。

摘　　要：全框支厚板转换高层结构体系目前在地铁上盖物业开发中逐渐应用,为探究上部多塔结构竖向收进引起的结构整体质心偏心率的改变对全框支厚板转换结构的影响,设计制作了1∶35缩尺比的全框支厚板转换结构多塔钢结构缩尺模型,计算其综合质心偏心率,进行振动台试验研究,并采用有限元软件Etabs建立7个有限元模型进行整体偏心率参数分析。结果表明:全框支厚板转化结构的竖向收进,会造成结构的整体偏心率发生改变,结构的加速度响应呈现随着结构质心偏心率增大而增大的趋势。同时试验与数值计算结果均表明全框支厚板转换结构的扭转效应随着整体偏心率e增加而增加,数值计算结果有效验证了试验结果。The system of full-frame-supported high-rise building structure with thick plate transfer has been gradually applied in the subway superstructure property development,in order to explore the influence of changes in the eccentricity of the center of mass caused by vertical retraction of upper multi-tower structure on the full-frame-supported structure with thick plate transfer,the paper designed a 1∶35 scale full-framesupported multi-tower structure with thick plate transfer,the eccentvicity of the center of mass was calculated,the shaking table test was carried out,and seven finite element models were established to analyze the overall eccentricity parameters combined with ETABS.The results showed that the overall eccentricity of the structure would be changed due to the vertical retraction of the full-frame-supported structure with thick plate transfer,and the acceleration response of the structure increased with the increase of the eccentricity of the center of mass of the structure.At the same time,the experimental and numerical results showed that the torsion effect of the full-frame-supported structure with thick transfer increased with the increase of the overall eccentricity E,which effectively verified the experimental results.

关 键 词：全框支厚板转换 高层结构 振动台试验 立面收进 质心偏心率 数值计算 

分 类 号：TU973[建筑科学—结构工程]