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Soil-structure interaction effects on an instrumented building

机译:土-结构相互作用对仪器仪表建筑的影响

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The paper highlights the use of FEM and bi-directional lumped-mass-storey-stiffness numerical models for the study of the soil-structure interaction (ssi) effects on an instrumented building. Data on the structural response have been obtained through the project for seismic instrumentation of a 16-storey r/c cast-in-place dwelling building (Chisinau, Republic of Moldova) during a series of earthquakes (Gutenberg-Richter M (GR) = 5.0-6.7). The effect of soil-structure interaction is clearly observed comparing the responses recorded on foundation and free-field. ssi becomes more pronounced for higher level of ground shaking amplifying the natural period of the structure and slightly suppressing high frequences on the foundation in comparison with the free-field motion.
机译:本文着重介绍了有限元法和双向集总-层-刚度数值模型的使用,以研究仪器仪表建筑物上的土壤-结构相互作用(ssi)效应。通过一系列地震(古腾堡-里希特尔M(GR)=)的16层遥控现浇住宅建筑(摩尔多瓦共和国基希讷乌)的地震仪器测试项目,获得了有关结构响应的数据。 5.0-6.7)。比较基础和自由场上记录的响应,可以清楚地观察到土壤-结构相互作用的影响。与自由场运动相比,ssi随较高水平的地面震动而放大,从而放大了结构的自然周期,并略微抑制了基础上的高频。

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