防灾减灾工程学报2025，Vol.45Issue(2)：282-294,13.DOI:10.13409/j.cnki.jdpme.20241001002
调谐液体阻尼器-高层结构的实用抗震分析方法
Practical Seismic Analysis Method for High-rise Structures with Tuned Liquid Dampers
摘要
Abstract
To address the complexity in solving responses of high-rise structures with Tuned Liquid Dampers(TLDs)under random seismic excitations,using the finite element dynamic analysis and the quadratic decomposition method of the power spectrum,this study developed a simplified closed-form solution method for the spectral moments of the dynamic responses in high-rise structures with TLDs installed on the top floors under Hu Yuxian seismic excitation spectrum.Firstly,based on the linear mechanical model of TLD,the coupled seismic equations for the TLD-high-rise building structure were established.Then,finite element analysis technology was used to obtain the dynamic characteris-tics of the high-rise building structure.The equivalent dynamic equations for TLD-high-rise building structures expressed in real modes were reconstructed,resolving difficulties in acquiring the dynamic characteristics of complex controlled structures.Secondly,the simplified closed-form solutions for ab-solute structural displacements,inter-floor displacements,variance,and 0-2 order spectral moments of high-rise building structures were derived using the complex modal method and quadratic decompo-sition method.Finally,a real structure was used as a case study.The comparison between the floor and node spectral moments obtained by the proposed method and the results calculated by the virtual excitation method verified the correctness of the derived response spectral moments,and the effects of the number of structural vibration modes and the TLD parameters on vibration reduction performance were explored.The results showed that the first three orders of structural vibration modes could en-sure the accuracy of the response results,and the seismic performance of high-rise structures could be effectively improved by appropriately increasing the length and height of the TLD and selecting a suit-able damping ratio.关键词
调谐液体阻尼器(TLD)/胡聿贤随机激励谱/二次式分解法/实用分析法/参数分析Key words
tuned liquid dampers(TLD)/Hu Yuxian random excitation spectrum/quadratic decompo-sition method/practical analysis method/parameter analysis分类
土木建筑引用本文复制引用
邹万杰,梁敏容,李创第,葛新广,经承贵..调谐液体阻尼器-高层结构的实用抗震分析方法[J].防灾减灾工程学报,2025,45(2):282-294,13.基金项目
国家自然科学基金(51468005)、广西自然科学基金(2019GXNSFBA245071)、广西科技基地和人才专项(AD19245131)、广西高校防灾减灾与预应力技术重点实验室项目(GXKDTJ024)资助 （51468005）
