结构工程师2025，Vol.41Issue(3)：164-172,9.DOI:10.15935/j.cnki.jggcs.202503.0017
黏弹性阻尼器的剪-扭耦合性能足尺试验研究
Full-Scale Experimental Study on Shear-Torsion Coupled Performance of Viscoelastic Dampers
摘要
Abstract
In theory,viscoelastic dampers(VEDs)dissipate energy through shear deformation of viscoelastic materials,while in practical engineering,VEDs are usually in complex stress states under shear force,axial force,bending moment,and their combinations.So,the actual stress state of VEDs is more complex than the theoretical stress state,which has a significant impact on the stiffness and energy dissipation of the structure.Based on this,the deformation of VEDs under complex stress states is decomposed into translational shear deformation and rotational shear deformation,and a shear-torsion coupled mechanical model is proposed.Through full-scale performance tests,the unique mechanical parameters of VEDs under shear-torsion coupled are studied.The test results show that the shear-torsion coupled test results match well with numerical analysis and mechanical models,and the test results verify the shear-torsion coupled mechanical model.Furthermore,the differences between the experimental and theoretical values of the proposed torque correction coefficient are less than 5%,indicating that the experimental and theoretical values of the torque correction coefficient are basically consistent.In the deformation and frequency correlation tests,the relatively constant relationship between shear and torsional deformation in the test is verified.关键词
黏弹性阻尼器/复杂受力状态/剪-扭耦合性能/足尺试验Key words
viscoelastic damper/complex stress state/shear-torsion coupled performance/full-scale test分类
建筑与水利引用本文复制引用
赵雪莲..黏弹性阻尼器的剪-扭耦合性能足尺试验研究[J].结构工程师,2025,41(3):164-172,9.基金项目
国家自然科学基金国家杰出青年科学基金项目(52025083) （52025083）
