噪声与振动控制2025，Vol.45Issue(3)：236-242,7.DOI:10.3969/j.issn.1006-1355.2025.03.037
地铁荷载下台基与重建钟楼的振动特性分析
Dynamic Response of Reconstructed Bell Tower and Pedestal Foundation Induced by Subway Loading
摘要
Abstract
The vibration characteristics and vibration level of the pedestal foundation before and after the reconstruc-tion of the bell tower induced by subway were compared.The dynamic characteristics of the wood structure of the recon-structed bell tower was analyzed as well.With the reconstructed bell tower and the proposed Metro Line 6 in Jinan as the background,a coupled model including tunnel,soil,pedestal foundation,bell tower was established.Results of the study show that,before the reconstruction of the bell tower,the low-frequency vibration at the surface of the pedestal foundation is less affected by the train speed,while the dominant frequency higher than 25 Hz increases with the increase of train speed.The reconstruction of the bell tower has a significant influence on the vibration of the pedestal foundation along the track di-rection.After the reconstruction of the bell tower,the peak value of the vibration acceleration vibration decreases at the four corners but increases at the center of the pedestal foundation.The high-frequency vibration energy at the corners decreases.When waves propagates from the bottom to the top of the columns,the vertical vibration level of the the cornice column and hypostyle column of the bell tower both increases,while the dominant vibration frequency remains 50 Hz,which is a relative high-frequency vibration.However,the vibration in the horizontal direction decreases firstly and then increases,while the high-frequency vibration component decreases rapidly,and the low-frequency vibration adjacent to the self-oscillating fre-quency(about 4 Hz)increases significantly.关键词
振动与波/台基/重建钟楼/地铁振动/木结构/振动特性Key words
vibration and wave/pedestal foundation/reconstruction of bell tower/subway vibration/wood structure/vibration characteristics分类
建筑与水利引用本文复制引用
陈娟,李元庆,耿建龙,涂文博..地铁荷载下台基与重建钟楼的振动特性分析[J].噪声与振动控制,2025,45(3):236-242,7.基金项目
国家自然科学基金资助项目(52268069) （52268069）
山东省自然科学基金青年资助项目(ZR2020QE264)山东省高等学校"青创科技计划"资助项目(2023KJ121) （ZR2020QE264）
