建筑结构学报2017，Vol.38Issue(5)：43-51,9.DOI:10.14006/j.jzjgxb.2017.05.006
子结构隔震的巨型框架结构地震反应分析与振动台试验研究
Numerical analysis of seismic response and shaking table test of mega frame structure with isolated sub-structure
摘要
Abstract
In order to invcstigate the actual vibration control effect of the isolated sub-stnucture for the mega frame structure,numerical simulation and shaking table test of the (non-isolated) mega frame structure and the isolated mega frame structure with isolated sub-structure were performed.The prototype structure was introduced,then numerical analyses of the structures were carried out using finite element method,to study the seismic response control effect of the sub-structure isolation technique towards the main structure and the sub-structure.The model structure and its test scheme were introduced.Shaking table tests of the model structures were performed,the seismic responses of the main structure and the sub-structure were measured and analyzed.Analysis and test results indicate that the basic period of the mega frame structure with isolated sub-structure is prolonged.The first six modes of vibration of the mega fiame structure with isolated sub-structure are mainly the sub-structure's vibration,while the first six modes of vibration of the non-isolated mega fiame structure are mainly the main structure's vibration.With the sub-structure being isolated,the seismic responses of the main frame structure and the sub-structure are reduced evidently.The seismic responses and control effects of the lower second sub-structure are larger than the third sub-structure.Lateral deformations of the isolated sub-structures are concentrated on the isolation layers,but the displacement of the isolation layers are less than the width of the isolation joint.关键词
巨型框架结构/隔震子结构/地震反应分析/振动台试验/减震效果Key words
mega frame structure/isolated sub-structure/seismic response analysis/shaking table test/vibration control effect分类
建筑与水利引用本文复制引用
颜学渊,毛会敏,祁皑,徐小勇,熊莹..子结构隔震的巨型框架结构地震反应分析与振动台试验研究[J].建筑结构学报,2017,38(5):43-51,9.基金项目
国家自然科学基金项目(51578160),福建省教育厅科技项目(JA15050),福建省高校杰出青年科研人才计划(810104). （51578160）
