A numerical and experimental study of bearing stiffness of drilled shafts socketed in heterogeneous rock

被引：8
|
作者：
Chung, Jae H. [1 ]
Ko, Jeongsoo
Klammler, Harald [2 ]
McVay, Michael C.
Lai, Peter [3 ]
机构：
[1] Univ Florida, Bridge Software Inst, Dept Civil & Coastal Engn, Gainesville, FL 32611 USA
[2] Univ Fed Bahia, Dept Environm Sci & Sustainable Dev, BR-47805100 Barreiras, BA, Brazil
[3] Florida Dept Transportat, Struct Design Off MS 33, Tallahassee, FL 32399 USA
来源：
COMPUTERS & STRUCTURES | 2012年 / 90-91卷
关键词：
Finite element analysis; Centrifuge testing; Spatial variability; Bearing stiffness; Soil-structure interaction;
D O I：
10.1016/j.compstruc.2011.09.004
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The objective of this study is to evaluate the effect of spatial variability of rock elasticity on the tip resistance of drilled shafts using experimental tests, finite element analysis (FEA) and geostatistical principles. A mathematical and computational model for simulating the multi-dimensional soil-structure interaction is developed using the ADINA FEA program and validated using data obtained from laboratory and centrifuge tests. Subsequently, the FEA model is used to quantify the spatial variability effect on the bearing stiffness of the deep foundation. Using geostatistical principles, a relationship is derived between deterministic and probabilistic end bearing stiffnesses of the rock conditions. Published by Elsevier Ltd.
引用
收藏
页码：145 / 152
页数：8
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