磁流变阻尼器在某住宅项目中的应用研究

作者：栾海涛¹,闻陈宝²,俞果¹,凌研方¹,侯彦果²,朱博莉³

作者简介：

栾海涛,高级工程师,E-mail:2353916282@ qq. com

作者单位：

1. 北京城建集团有限责任公司, 北京 100088; 2. 清华大学土木工程系,北京 100084; 3. 北京科技大学未来城市学院,北京 100083

基金项目：

∗国家自然科学基金(52378164)

摘要：

阻尼器是一种重要的结构减震技术,可为结构提供附加阻尼,消耗输入的地震能量,实现减震目标,具有独特优势和广阔应用前景。黏滞阻尼器因结构简单、性能稳定而被广泛应用于多个领域;磁流变阻尼器则在汽车、机械和航空领域有广泛应用,在建筑与桥梁工程中应用仍相对较少。总结黏滞阻尼器和磁流变阻尼器的发展历程及其应用现状,对阻尼器及带有阻尼器的框架结构进行精确的有限元模拟,结合北京市某更新改造项目中磁流变阻尼器应用案例,对其减震效果进行研究。提出 5 种不同阻尼器布置方案,通过改变该住宅项目中的阻尼器布置进行对比分析,给出阻尼器在框架结构中的优化布置建议。

关键词：住宅;更新改造;阻尼器;框架结构;减震;有限元分析;布置;优化

English：

Damper is an important structural damping technology, which can provide additional dampingfor the structure, consume the input seismic energy, and achieve the damping target. It has uniqueadvantages and broad application prospects. Viscous dampers are widely used in many fields because oftheir simple structure and stable performance. Magnetorheological dampers are widely used in the fields ofautomobile, machinery and aviation, but are still relatively rare in construction and bridge engineering.The development history and application status of viscous dampers and magnetorheological dampers aresummarized. The accurate finite element simulation of dampers and frame structures with dampers iscarried out. Combined with the application case of magnetorheological dampers in a renovation project inBeijing, the damping effect is studied. Five different damper layout schemes are proposed, and thedamper layout changes in the residential project are compared and analyzed, and the optimal layout of thedamper in the frame structure is given.

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