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http://dx.doi.org/10.7843/kgs.2009.25.1.55

Analysis of the Rotational Behavior of Piles under Lateral Loading Installed in Multi Layered Soil  

Kang, Beong-Joon (Dept. of Civil and Environmental Eng., Yonseil Univ.)
Kyung, Doo-Hyun (Dept. of Civil and Environmental Eng., Yonseil Univ.)
Hong, Jung-Moo (Dept. of Civil and Environmental Eng., Yonseil Univ.)
Lee, Jun-Hwan (Dept. of Civil and Environmental Eng., Yonsei Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.25, no.1, 2009 , pp. 55-64 More about this Journal
Abstract
One of the important use of piles is to furnish lateral support and nowadays it is getting highlighted due to the increase of skyscrapers, transmission towers, wind turbines, and other lateral action dependent structures. After Broms (1964), many researchers have suggested methods for estimating lateral capacity of pile. But each method assumes different earth pressure distribution and lateral earth pressure coefficient causing confusion on the part of pile designers. Lateral earth pressure, essential in lateral capacity estimation, is influenced by pile's rotational behavior under lateral load. Prasad and Chari (1999) assumed the rotation point of pile and suggested an equation of ultimate lateral load capacity. In this study, we investigate the depth of rotation point in both homogeneous soil and multi layered soil, and compare with the estimation value by previous research. Test results show that measured rotation point and estimated value by Prasad and Chari's equation show good agreement and multi layered condition affects the location of rotation point to be changed.
Keywords
Bending moment distribution; Lateral load; LVDT; Pile; Rotation point;
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  • Reference
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