Parametric study of single-degree-of-freedom systems with energy dissipating devices built on soft soil sites
Parametric study of single-degree-of-freedom systems with energy dissipating devices built on soft soil sites
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软土地基带耗能装置单自由度系统参数化研究
DOI：
10.1016/j.engstruct.2006.08.018
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发表时间：
2007
影响因子：
5.5
通讯作者：
A. Ayala
中科院分区：
文献类型：
--
作者：
J. Jara;E. Miranda;A. Ayala
近年来，耗能减震装置被用来控制结构反应和减少地震破坏。研究目的是确定在软土地基上设置消能减震装置的结构的可能效益，并提供一些一般性的设计建议。总结了具有金属屈服装置的单自由度系统的综合参数研究结果。响应历史分析是通过考虑结构和耗能装置中广泛的刚度和强度参数来进行的。特别关注了行为极限状态的确定，重点关注了框架和耗能装置的延性要求。结果表明，延性需求受框架相对于地面运动主导周期的周期以及框架的侧向强度和耗能装置的影响较大。研究结果为软土场地金属屈服装置结构的力学性能和几何性能的初步选择提供了指导。
Energy dissipating devices have been used in recent years to control structural response and reduce seismic damage. A study aimed at determining the possible benefits and providing some general design recommendation for structures with energy dissipating devices built on soft soil sites is presented. Results from a comprehensive parametric study of single-degree-of-freedom systems with metallic yielding devices are summarized. Response history analyses are conducted by considering a wide range of stiffness and strength parameters in the structure and energy dissipation devices. Special attention is devoted to determining behavior limit states, focusing on ductility demands on the frame and energy dissipation devices. It is shown that ductility demands are strongly influenced by the period of the frame relative to the predominant period of the ground motion as well as by the lateral strength of the frame and energy dissipation devices. Results presented in this study provide guidance for the preliminary selection of the mechanical and geometrical properties of structures with metallic yielding devices located at soft soil sites.