首页|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

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

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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.
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
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-frame-supported 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 over-all 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.

full-frame-supported high-rise building structure with thick plate transferhigh-rise structureshaking table testfacade retractioneccentricity of center of massnumerical calculation

李浩、汪大洋、赵东卓、谢桢

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广州大学土木学院,广州 510006

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

国家自然科学基金面上项目广东省自然科学基金面上项目

521784672020A1515010993

2024

10.3724/j.gyjzG23032007

工业建筑
中冶建筑研究总院有限公司

工业建筑

CSTPCD
影响因子：0.72
ISSN：1000-8993
年,卷(期)：2024.54(5)
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