کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
305094 | 512854 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A simple displacement model for response analysis of EPS geofoam seismic buffers A simple displacement model for response analysis of EPS geofoam seismic buffers](/preview/png/305094.png)
A simple displacement-type block model is proposed to compute the compression–load–time response of an idealized seismic buffer placed against a rigid wall and used to attenuate earthquake-induced dynamic loads. The seismic buffer is modelled as a linear elastic material and the soil wedge shear surface by a stress-dependent linear spring. The model is shown to capture the trends observed in four physical reduced-scale model shaking table tests carried out with similar boundary conditions up to a base excitation level of about 0.7g. In most cases, quantitative predictions are in reasonable agreement with physical test results. The model is simple and provides a possible framework for the development of advanced models that can accommodate more complex constitutive laws for the component materials and a wider range of problem geometry.
Journal: Soil Dynamics and Earthquake Engineering - Volume 27, Issue 4, April 2007, Pages 344–353