超高阻尼隔震橡胶支座的自适应性能及其隔震结构多目标抗震性能设计方法研究

项目名称： 超高阻尼隔震橡胶支座的自适应性能及其隔震结构多目标抗震性能设计方法研究

项目编号： No.51278219

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 袁涌

作者单位： 华中科技大学

项目金额： 80万元

中文摘要： 自适应基础隔震结构可以有效地实现结构多级抗震设防目标，减轻结构震害。本项目基于超高阻尼隔震橡胶支座的自适应力学性能研究，实现自适应隔震结构的抗震性能评估方法，进一步建立多目标抗震性能设计方法。首先，通过理论分析与依存性实验研究，建立超高阻尼隔震橡胶支座自适应力学性能数值模型；其次，基于自适应实时子结构实验方法与非线性动力时程分析，对三层和七层自适应基础隔震建筑的隔震效果进行研究，建立多重量化评估指标的自适应基础隔震建筑结构抗震性能评估方法，并实现隔震装置自适应力学性能数值模型精确化；最后，基于全概率分析的方法，完成自适应隔震装置的关键自适应隔震参数、多重量化评价指标与多级抗震性能目标之间的概率函数关系研究，建立满足多级抗震设防目标的自适应基础隔震建筑结构性能设计方法。本项目的研究成果将促进隔震技术在结构工程中进一步的应用，有较好的科学意义和工程价值。

中文关键词： 高阻尼橡胶隔震支座；速度相关性；改进超弹性Zener模型；实时子结构试验；速度控制

英文摘要： The self-adaptive base isolated structure can effectively satisfy the structural multiple seismic performance objectives, and then reduce structural seismic damage. This study is aim at the seismic performance evaluation method and the multi-objectives performance-based seismic design method for the self-adaptive base isolated structure, according to the research on the self-adaptive mechanic performance of super high-damping rubber bearings. Firstly, through the incorporation of theoretical method, numerical simulation and performance experiments, the self-adaptive mechanic performance and the numerical model of supper high-damping rubber bearings are investigated. Secondly, through the self-adaptive real-time substructure hybrid experiments and numerical simulation, the isolation effects for the three- and seven- storey self-adaptive base isolated buildings are investigated. The numerical model of supper high-damping rubber bearings are précised according to the real-time substructure hybrid test results, considering the variety of the loading velocity and the natural period of buildings. And then the structural seismic performance evaluation method basing on the structural multiple evaluating parameters are studied. Lastly, through the probability method, the probability functions in the key self-adaptive pa

英文关键词： high damping rubber bearing；rate-dependent performance；improved hyperelastic Zener model；real-time substructure test；velocity control