Performance of Circular Pile on Dynamic Loading—A Numerical Study
摘要
For overcoming the challenges of a foundation on soft soils, piles are frequently utilized in building. The pile exposed to dynamic loading has been numerically investigated in this work using the finite element-based software ABAQUS. For the analysis, a single circular concrete pile with lengths and diameters of 11.5 and 0.4 m has been used according to L/D ratio. The earthquake loading of a 5.40 Richter scale intensity has been applied for the analysis of earthquake behaviour. The pile experienced a dead load of 700 kN and the ground excitation of an earthquake load at the same time. The comparison of outcomes accomplished by the finite element software ABAQUS has been made with the published analysis of the PLAXIS software. The maximum vertical displacement at the bottom of the pile has been found to be very close, with 97.85% similarity between both software packages (ABAQUS and PLAXIS). Also, the parametric investigation of the pile has been carried out by altering the lengths and diameters of the pile as well as the position of loading. Based on the results of a parametric investigation, the reaction of the pile in the form of maximum vertical displacement at the bottom of the pile is reduced to 4.46% and 19.06% corresponding to increases in pile diameter from 0.4 m to 0.5 m and 0.6 m, respectively, and reduced to 0.6% and 1.99% corresponding to increases in pile length from 11.5 m to 13 m and 14.5 m, respectively. In addition, the pile’s reaction in the form of stress at the bottom of the pile has been measured in response to variations in diameters, lengths of the pile, and positions of application of loading.