同济大学学报（自然科学版）2026，Vol.54Issue(2)：182-191,263,11.DOI:10.11908/j.issn.0253-374x.24348
全户内变电站装配式钢框架部分隔震结构体系振动台试验
Shaking Table Test on Indoor Substation Prefabricated Steel Frames with a Partial Isolation System
摘要
Abstract
To address the issue of excessive floor-mounted equipment acceleration in existing non-isolated indoor substations,a partial isolation retrofit strategy was proposed by introducing isolation bearings between the equipment and the floor slab.Based on this concept,a shaking table test was conducted on a prefabricated steel frame structure representative of an indoor substation.Three isolation schemes were considered:a fixed-base system(FBS),a base isolation system(BIS),and a partial isolation system(PIS).BIS was further categorized into BIS-LNR and BIS-LR,corresponding to the use of linear natural rubber(LNR)bearings and lead rubber(LR)bearings,respectively.Experimental results show that the maximum equipment acceleration in FBS reaches 1.42g,significantly exceeding the allowable limit of 0.6g.In contrast,BIS-LNR,BIS-LR,and PIS reduce the average equipment acceleration by 87%,69%,and 77%,respectively.In terms of structural response,the maximum inter-story drift of BIS is only 38%of that of FBS,while PIS shows a drift similar to FBS.Both remain well below the code-specified limit of 1/50.These results demonstrate that the proposed PIS retrofit strategy can effectively achieve the dual control of structural and equipment responses in existing indoor substations.关键词
部分隔震/基底隔震/钢框架结构/振动台试验Key words
partial isolation/base isolation/steel frame structure/shaking table test分类
建筑与水利引用本文复制引用
郭小农,陈劭臻,罗金辉,方瑜,吴祖咸..全户内变电站装配式钢框架部分隔震结构体系振动台试验[J].同济大学学报（自然科学版）,2026,54(2):182-191,263,11.基金项目
国家自然科学基金(52178156) （52178156）
