基于附加刚度和阻尼的结构抗震性能提升设计
Journal: Building Technology Research DOI: 10.12238/btr.v8i1.4604
Abstract
以中低层钢筋混凝土框架结构为研究对象,提出一种通过附加刚度和阻尼来提升竖向不规则结构变形均匀性及抗震性能的方法。考虑高阶模态影响,在目标需求下给出了结构所需附加刚度和阻尼的直接计算方法。构建5组结构模型,考虑变形和地震强度需求验证了所提方法的有效性。研究结果表明,在I类和II类地震动作用下,附加刚度和阻尼可以明显改善结构变形均匀性和抗震性能。此外,该方法无需进行复杂的迭代计算。这为普通结构的抗震设计提供了有效的技术指导。
Keywords
附加刚度和阻尼；抗震性能；竖向不规则；高阶模态；变形均匀性
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[13] Landi L.,Filippo C.,and Pier P.Effectiveness of differ ent distributions of viscous damping coefficients for the seismic retrofit of regular and irregular RC frames[J]. Engine ering Structures,2015,100:79-93.
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