摘要
黏滞阻尼墙消能框架中,阻尼墙位置的选择是减震设计的重要环节,合理位置可获得更大的附加阻尼比,提高减震效果。本文针对黏滞阻尼墙框架结构,探究其同榀框架内阻尼墙的布置不同对结构附加阻尼比的影响,提出优化布置原则。本文取一多层框架和一高层框架两个结构为算例,从同榀不同跨与同跨不同位两个角度,分析对比不同的黏滞阻尼墙布置方案对附加阻尼比的影响。研究结果表明:同榀不同跨的布置位置中,长跨优于短跨,中跨优于边跨,柱截面大的跨间优于柱截面小的跨间;同跨不同位的布置位置中,跨中优于跨端,边跨里端优于外端。该研究可为黏滞阻尼墙在框架结构中的布置选位提供参考。
In viscous damping wall energy-dissipating frames,the selection of damping wall locations is a crucial aspect of seismic design.An optimal placement can yield a greater additional damping ratio,enhancing the overall damping effectiveness.This paper explores the effects of different arrangements of damping walls within the same frame on the additional damping ratio of viscous damping wall frame structures and proposes principles for optimized placement.Using a multi-story frame and a high-rise frame as case studies,this research analyzes and compares various viscous damping wall arrangements from two perspectives:varying spans within the same frame and varying positions with the same span.The results reveal that,among different placements within the same span,longer spans are more effective than shorter ones,mid-spans outperform edge spans,and spans with larger column cross-sections are superior to those with smaller cross-sections.Additionally,for the same span with different placements,mid-span positions are preferred over end-span positions,and inner edge spans are more effective than outer edge spans.This study provides valuable insights for the optimal positioning of viscous damping walls in frame structures.
作者
曾德民
刘欢
高杰
梁国才
董波
王馨语
Zeng Demin;Liu Huan;Gao Jie;Liang Guocai;Dong Bo;Wang Xinyu(School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;China Academy of Building Research,Beijing 100013,China)
出处
《建筑科学》
北大核心
2025年第7期77-84,共8页
Building Science
关键词
黏滞阻尼墙
框架结构
布置位置
附加阻尼比
减震设计
viscous damping wall
frame structure
layout position
additional damping ratio
seismic design
