| Title |
Buckling Loads of Piles with Allowance for Self-Weight |
| Authors |
이준규(Lee, Joon-Kyu) ; 이광우(Lee, Kwang-Woo) ; 전영진(Jeon, Young-Jin) ; 권오일(Kwon, O-Il) ; 최용혁(Choi, Yong-Hyuk) ; 최정식(Choi, Jeong-Sik) |
| DOI |
https://doi.org/10.12652/Ksce.2023.43.2.0187 |
| Keywords |
부분매립 말뚝; 자중; 좌굴하중; 좌굴형; 수치해석법 Partially embedded pile; Self-weight; Buckling load; Mode shape; Numerical method |
| Abstract |
This paper presents the buckling behavior of a pile considering its self-weight. The differential equation and boundary conditions governing the buckling of partially embedded piles in nonhomogeneous soils are derived. The buckling load and mode shape of the pile are numerically computed by the Runge-Kutta method combined with the Regula-Falsi algorithm. The obtained numerical solutions for bucking loads agree well with the results available from the literature. Numerical examples are given to analyze the buckling load and mode shape of the piles as affected by the self-weight, embedment ratio, slenderness ratio and boundary condition of the pile as well as the aspect ratio and rigidity ratio of the subgrade reaction. It is found that the self-weight of the pile leads to the reduction of the buckling load, indicating that neglecting the effect of self-weight may overestimate the buckling load of partially embedded piles. |