长春工程学院学报（自然科学版）2025，Vol.26Issue(1)：40-45,6.DOI:10.3969/j.issn.1009-8984.2025.01.008
竖向不规则钢框架双层隔震体系抗震性能分析
Seismic Performance Analysis of Double Layer Isolation System with Vertically Irregular Steel Frame
摘要
Abstract
Taking a 9-story vertically irregular steel frame structure as the object,SAP2000 software is used to simulate and analyze five different structural conditions under rare earthquake action,and to explore the seismic performance of the double-layer isolation system and the influence of different isolation layer posi-tions on the seismic reduction effect of the structure.Through nonlinear analysis of the structure and com-parison of performance indicators such as natural vibration period,inter story shear force,and floor dis-placement under various working conditions,it is shown that it can significantly improve the seismic per-formance of the structure and effectively reduce the abrupt changes in inter story shear force,using a doub-le-layer isolation system for vertical irregular steel frames.In a double-layer isolation system,as the height of the upper isolation bearing increases,the seismic performance of the structure tends to decrease.There-fore,the upper isolation bearing should be placed at the lower part of the main structure in engineering de-sign.关键词
钢框架/双层隔震体系/隔震支座/竖向不规则Key words
steel structure/double layer seismic isolation system/isolation bearing/vertically irregular分类
土木建筑引用本文复制引用
余龙,胡建安,汪伟,尤超,冯环..竖向不规则钢框架双层隔震体系抗震性能分析[J].长春工程学院学报（自然科学版）,2025,26(1):40-45,6.基金项目
安徽省中青年教师培养行动优秀青年教师培育项目(YQYB2023162)安徽省教育厅高校自然科学研究重点项目(KJ2021A1410,2022AH052650)教育部高等学校科学研究发展中心专项课题(ZJXF2022080) （YQYB2023162）
