Material damping vs. radiation damping in soil–structure interaction analysis
Material damping vs. radiation damping in soil–structure interaction analysis
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DOI：
10.1016/j.compgeo.2006.03.001
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发表时间：
2006-03
影响因子：
5.3
通讯作者：
R. Ambrosini
中科院分区：
文献类型：
--
作者：
R. Ambrosini
本文的主要目的是有助于量化的土壤阻尼的影响，最重要的设计变量在地震反应的棱柱形矩形基础的建筑结构。土-结构相互作用模型用于此目的。该结构的物理模型是基于一个一般的梁配方。采用集总参数模型来描述土体和相互作用机理。地震荷载由多次地震的地面加速度记录合成。最后，利用对应原理，将滞回和Voigt阻尼纳入土模型中。使用实现的模型，进行了数值研究。所获得的结果导致间接评估的重要性，由于土壤材料阻尼的能量耗散相比，由于辐射阻尼的耗散。
The main objective of this paper is to contribute to a quantification of the effect of soil damping on the most important design variables in the seismic response of building structures with prismatic rectangular foundations. A soil–structure interaction model was used for this purpose. The physical model of the structure is based on a general beam formulation. A lumped-parameter model was adopted to represent the soil and the interaction mechanisms. The seismic load was incorporated by ground acceleration records of many earthquakes. Finally, using the Correspondence Principle, the hysteretic and Voigt damping was incorporated into the soil model. Using the implemented models, a numerical study was carried out. The results obtained lead to an indirect assessment of the importance of energy dissipation due to soil material damping compared with the dissipation due to radiation damping.