框架结构的TLD减震控制研究

上海工程技术大学 机械工程学院,上海 201620

TLD; 框架结构; 减震; 优化设计

Research on TLD seismic reduction for frame structure
WANG Jian,PAN Ying

(College of Mechanical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

TLD; frame structure; seismic reduction; optimum design

DOI: 10.13800/j.cnki.xakjdxxb.2015.0411

备注

针对5层框架结构模型进行模态分析,得出结构的前几阶主振型。设计出多组TLD减振方案,在基频周围对结构进行谐响应分析,对比不同方案的TLD减振效果,得出TLD的优化设计依据。并根据此依据,以某教学楼为实际工程背景,提出具体的TLD减震方案。对教学楼进行简谐激励模拟,结果显示TLD对教学楼的位移反应有显著抑制作用。再对教学楼进行地震波动力时程分析,结果显示TLD对教学楼的位移和加速度反应有明显的抑制作用。研究表明,TLD对框架结构具有良好的减震应用前景,TLD优化设计方法可作为实际工程设计的参考。

A five-story frame structure model is analysed to get its modes.To get the basis of optimum design,different TLD devices are designed and the seismic reduction efficiencies of the TLD devices are compared after the dynamic responses of the controlled structure computed under harmonic excitation.And based on this,a teaching building is computed under harmonic excitation,the result shows that TLD can reduce the displacement reaction.The teaching building is also computed under excitation of seismic ground motion,the result shows that TLD can reduce the reaction of displacement and acceleration.The study shows that TLD has good application prospect for frame structure,the TLD design parameters and simulation method in this paper can be used as a reference to practical engineering design.