کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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305197 | 512866 | 2006 | 8 صفحه PDF | دانلود رایگان |
This paper presents a study of the influence of connection conditions at the head and tip of micropiles on their response to seismic loading. The study is carried using a fully three-dimensional finite element modeling. The soil is assumed to be elastic with Rayleigh damping. The superstructure is modeled by a single degree of freedom system composed of a concentrated mass and a column. The study is carried out for both vertical and inclined micropiles. The results of analyses show that a pinned connection between the micropiles and the cap leads to a reduction in the axial force and bending moment in micropiles, in particular for inclined micropiles. They also show that the embeddement of the tip of micropiles in a stiff substratum layer leads to a dramatic increase in the internal forces in the micropiles.
Journal: Soil Dynamics and Earthquake Engineering - Volume 26, Issue 5, May 2006, Pages 461–468