- 摘 要
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(1 天津城市建设管理职业技术学院, 天津 300134; 2 天津城建大学天津市土木建筑结构防护与加固重点实验室, 天津 300384)
[摘要]针对某高层建筑结构,利用ETABS有限元分析软件建立计算模型,探讨原结构和设置黏滞阻尼器的减震结构在多遇地震作用下的抗震性能,通过进行五种黏滞阻尼器布设方案下结构响应的比较,以不同的控制函数为目标,进而优化黏滞阻尼器的布设位置。结果表明,黏滞阻尼器在保证不增加结构刚度的基础上,通过提供附加阻尼,能有效协助结构耗散地震输入的能量,降低了结构的动力响应,起到了很好的减震效果。同时,在考虑黏滞阻尼器的布设位置时,应根据结构的实际动力响应和变形特性综合确定,并且考虑结构的功能需求以获得最佳的减震效果。
[关键词]高层结构; 黏滞阻尼器; 地震响应; 变形特性
中图分类号:TQ336-4+2,TU973文献标识码:A文章编号:1002-848X(2016)23-0024-05
Research on seismic response and project optimization of high-rise energy-dissipated building
Duan Meiling1, Yang Dejian 2
(1 Tianjin Urban Construction Management & Vocation Technology College, Tianjin 300134, China; 2 The Key Laboratory of Civil Engineering and Architectural Structure Protection and Reinforcement in Tianjin, Tianjin Cheng Jian University, Tianjin 300384, China)
Abstract:Aimed at a high-rise building structure, finite element analysis software ETABS was used to establish calculation model to explore the seismic performances of original and the energy-dissipated structure installed with viscous damper under the frequent earthquake. In addition, by comparing the structural responses of five different schemes with different layouts of viscous dampers, the installation location of viscous damper was optimized aiming at different control functions. The results show that viscous dampers, based on guaranteeing constant structural stiffness, can provide additional damping to effectively assist the structure to dissipate energy of earthquake input, and to reduce the dynamic response of the structure. Viscous dampers provide a remarkable damping effect. At the same time, while considering the installation location of viscous dampers, it should be confirmed combining the actual dynamic response with structural deformation characteristics comprehensively, and structural functional requirements should also be considered to obtain the best damping effect.
Keywords:high-rise building structure; viscous damper; seismic response; deformation characteristics
作者简介:段美龄,硕士,Email:451057087@qq.com。