结构工程师2025，Vol.41Issue(4)：91-101,11.DOI:10.15935/j.cnki.jggcs.202504.0011
过载防护型黏滞阻尼器的振动控制机理及试验研究
Vibration Control Mechanism and Experimental Investigation of Viscous Damper with Overload Protector
摘要
Abstract
A combined base-isolation system incorporating isolation bearings and additional dampers can effectively mitigate seismic forces and control the deformation response of the isolation layer to a certain extent.However,under multi-level seismic excitations,combined isolation systems employing conventional viscous dampers generate excessively high damping forces,which compromise the isolation effectiveness.To address this issue,a viscous damper with overload protection(VD-OP)and its corresponding combined isolation system are proposed in this study.The design,fabrication,and experimental testing of the VD-OP were conducted,and a mechanical model describing its nonlinear damping and overload protection characteristics was established based on experimental data calibration.The effectiveness of the VD-OP combined isolation system and its advantages in multi-level vibration control were verified.The results indicate that the proposed VD-OP system exhibits a velocity-dependent nonlinear damping mechanism and force-limiting capability,effectively preventing excessive damping forces induced by high-level seismic excitations,enhancing isolation efficiency,and controlling the acceleration response of the isolated structure.The performance-based design approach proposed in this study provides practical guidance for the implementation of VD-OP systems and offers a reference for the seismic mitigation design of structures in high-intensity seismic regions.关键词
组合隔震/非线性黏滞阻尼器/过载防护/加速度控制Key words
combined isolation/nonlinear viscous damper/overload protection/acceleration control分类
建筑与水利引用本文复制引用
张世明,吕西林..过载防护型黏滞阻尼器的振动控制机理及试验研究[J].结构工程师,2025,41(4):91-101,11.基金项目
科技部国家重点实验室基础研究资助项目(SLDRCE19-A-10) （SLDRCE19-A-10）
