建筑结构学报2018，Vol.39Issue(5)：99-105,7.DOI:10.14006/j.jzjgxb.2018.05.013
碟形弹簧复合隔震支座力学性能试验与数值模拟研究
Experiment and numerical simulation on mechanical performance of disc spring compound isolation bearings
摘要
Abstract
In order to improve the energy dissipation capacity of the ordinary disc spring isolation bearings,novel disc spring compound isolation bearings are proposed, which combine ordinary disc spring isolation bearings with viscoelastic damping layers. Static loading tests and dynamic loading tests were conducted to study the mechanical performance of disc spring compound isolation bearings. The governing factors of the tests were investigated,including preloading displacement,loading amplitude and loading frequency. The test results indicate that viscoelastic damping layers can improve the energy dissipation capacity of ordinary disc spring isolation bearing effectively. The loading frequency has little effect on the equivalent stiffness and equivalent damping ratio of the disc spring compound isolation bearings. The preloading displacement and loading amplitude have positive correlation relationship with the equivalent stiffness and equivalent damping ratio of disc spring compound isolation bearings. The viscoelastic damping energy and the Coulomb damping energy are the main parts of the energy dissipation of the disc spring compound isolation bearing, and the viscous damping energy occupies a small portion of the dissipation energy. Finite element model of the disc spring compound isolation bearing was established using software ABAQUS,then the mechanical behavior of the disc spring compound isolation bearing under static loading and dynamic loading was simulated. The simulated results indicate that the behavior of the disc springs and the viscoelastic layers in the disc spring compound isolation bearings can be simulated effectively by C3D8R element and C3D8H element,respectively.关键词
复合隔震支座/碟形弹簧/黏弹性阻尼/静载试验/动荷载试验/数值模拟/力学性能Key words
compound isolation bearing/disc spring/viscoelastic damping/static loading test/dynamic loading test/numerical simulation/mechanical performance分类
建筑与水利引用本文复制引用
王维,李爱群,秦焰宏,代云焜..碟形弹簧复合隔震支座力学性能试验与数值模拟研究[J].建筑结构学报,2018,39(5):99-105,7.基金项目
国家重点研发计划(2017YFC0703602),国家自然科学基金项目(51708257,51708258),重庆市应用开发计划重点项目cstc2014yykfB30003. （2017YFC0703602）
