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Seismic uplift capacity of shallow horizontal strip anchor under oblique load using pseudo-dynamic approach

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Title Seismic uplift capacity of shallow horizontal strip anchor under oblique load using pseudo-dynamic approach
 
Creator RANGARI, SM
CHOUDHURY, D
DEWAIKAR, DM
 
Subject Horizontal strip anchor
Kotter's equation
Oblique load
Limit equilibrium method
Pseudo-dynamic approach
Soil amplification
Seismic uplift capacity
Closed-form analytical solution
PASSIVE RESISTANCE
RETAINING WALL
SOILS
SAND
PLATES
 
Description In this paper, an analytical method to compute the uplift capacity of an obliquely loaded horizontal strip anchor under both static and seismic conditions is described using the limit equilibrium method. The distribution of the soil reactions on a simple planar failure surface is obtained through the use of Kotter's equation, and the pseudo-dynamic approach is used to obtain the net seismic vertical uplift capacity factor for the unit weight component of the soil (F-yd). The results for the static and seismic vertical uplift capacity factors are determined for various combinations of input parameters, such as the load inclination, the soil friction angle, the embedment ratio, the soil amplification and both horizontal and vertical pseudo-dynamic seismic accelerations. It is observed that the orientation of the load significantly affects the seismic uplift capacity of the horizontal strip anchor. F-yd is seen to decrease with an increase in both horizontal and vertical seismic accelerations and soil amplification, whereas it is seen to increase with an increase in the embedment ratio and the soil friction angle, as expected. The results in terms of the non-dimensional net seismic uplift capacity factor are presented in graphical and tabular forms. The present results are compared and found to be in good agreement with similar results available in literature. (C) 2013 The Japanese Geotechnical Society. Production and hosting by Elsevier B.V. All rights reserved.
 
Publisher JAPANESE GEOTECHNICAL SOC
 
Date 2014-10-15T12:07:00Z
2014-10-15T12:07:00Z
2013
 
Type Article
 
Identifier SOILS AND FOUNDATIONS, 53(5)692-707
http://dx.doi.org/10.1016/j.sandf.2013.08.007
http://dspace.library.iitb.ac.in/jspui/handle/100/14863
 
Language en