节点文献
全钢结构住宅塔楼风振地震双激励黏滞阻尼减振系统设计与集成优化
Design and integrated optimization of double-excitation vibration mitigation system under wind and earthquake loadings using viscous fluid dampers for residential steel towers
【摘要】 以全钢住宅结构塔楼为工程背景,提出基于敏感性分析的黏滞阻尼器关键参数及变量优化选型方法,结合现有研究与工程设计实际经验提出双激励黏滞阻尼减振设计方法,同时控制结构的风振及地震响应,以一高层钢结构塔楼为研究对象,验证该设计方法的有效性,并对结构进行集成优化设计,对双激励减振系统的经济性进行评价。研究结果表明:双激励黏滞阻尼减振系统可以同时有效控制风振及地震作用下的结构响应,提升结构的舒适性、刚度和承载性能,为主体结构提供附加阻尼比,可以通过集成优化设计调节结构构件及减振装置成本以获得最优工程总成本。
【Abstract】 This article taked the all-steel residential tower structure as the engineering background, proposed the key parameters and variable optimization selection method of viscous damper based on sensitivity analysis. Combined with the existing research and engineering design experience, the design method of double-excitation viscous damping vibration reduction was proposed, and the wind vibration and seismic response of the structure were controlled. A high-rise steel structure tower was used as a research case to verify the effectiveness of the design method, and the integrated optimization design of the structure was carried out. The economy of the double excitation vibration reduction system was evaluated. The research results indicate that the dual excitation viscous damping vibration reduction system can effectively control both wind and seismic structural responses, improve the comfort, stiffness and strength performance of the structure, and provide additional damping ratio for the main structure. The cost of structural components and damping devices can be adjusted by integrated optimization design to obtain the optimal total engineering cost.
【Key words】 steel towers; double-excitation vibration viscous damping system; additional damping ratio; integrated optimization; sensitivity analysis;
- 【文献出处】 建筑结构学报 ,Journal of Building Structures , 编辑部邮箱 ,2023年S2期
- 【分类号】TU352.1;TU391
- 【下载频次】69