IMPACT OF ROUGH AND SMOOTH FOOTING ON SEISMICBEARING CAPACITY USING THE RIGID PLASTIC FINITEELEMENT METHOD (RPFEM)

In the current study, the interface element is extensively utilized to explore failure mechanismsunder both rough and smooth footings. The study employs a two-dimensional analysis utilizing theRigid Plastic Finite Element Method (RPFEM), previously utilized in geotechnical engineering. Thisstudy extensively investigated the effect of various factors, such as soil strength, and the geometricparameters of the slope (slope angle, β, slope height, H, and edge distance, L), on ultimate seismicbearing capacity for rough and smooth footings. It also compared these findings with the maximumultimate seismic bearing capacity of horizontal sandy soil, denoted as Vult. The results obtainedthrough RPFEM have provided valuable insights into how these parameters influence the ultimateseismic bearing capacity. The results presented demonstrate roughness of the footing surface proved tobe a pivotal factor in influencing various failure modes, notably the rigid triangular wedge mode, andthe two rigid triangular wedges mode.

کلیدواژه ها:

Seismic Bearing Capacity ، Rough ، Smooth ، Rigid Plastic ، Finite Element