| Title |
Analysis of Plastic Hinge on Pile-Bent Structure with Varying Diameters |
| Keywords |
Pile-bent structure;plastic hinge;yielding;lateral load;단일 현장타설말뚝;소성힌지;재료항복;수평하중 |
| Abstract |
In this study, the behavior of Pile-Bent structure with varying diameters subjected to lateral loads were evaluated by a load transfer approach. An analytical method based on the beam-column model and nonlinear load transfer curve method was proposed to consider material non-linearity (elastic, yielding) and P-△ effect. For an effective analysis of behavior Pile-Bent structure, the bending moment and fracture lateral load of material were evaluated. And special attention was given to lateral behavior of Pile-Bent structures depending on reinforcing effect of materials and ground conditions. Based on the parametric study, it is shown that the maximum bending moment is located within a depth (plastic hinge) approximately 1~3D (D: pile diameter) below ground surface when material non-linearity and P-△ effect are considered. And distribution of the lateral deflections and bending moments on a pile are highly influenced by the effect of yielding. It is also found that this method considering material yielding behavior and P-△ effect can be effectively used to perform the preliminary design of Pile-bent structures. |