NUMERICAL EVALUATION OF SEISMIC PERFORMANCE OF CORRUGATED-PLATE SHAPED STEEL TUBES

The current work presents a unique study on the seismic performance of innovative corrugated-plate steel bridge piers. While several previous research was conducted tubes with cross sections such as rounded or semi triangular plates, structural members straight ribbed corrugation geometry under uniaxial cyclic loading remained gap. Thus, this aims to present new concept that could add promising design effect. piers numerically investigated in terms load-bearing capacity and local buckling. ABAQUS employed accomplish series finite element analyses constant axial dead load lateral displacement. Three different geometries corrugated-shaped (i.e., C60, C80, C146 mm deep) along four thicknesses 6, 8, 10, 12 mm) were compared traditional circular-shaped Cir) having same outer diameter. results revealed offered 20% greater 66% more ductility their companions tubes. It interesting notice peak value column than those C80 C60 columns by 7% 10%, respectively. Furthermore, buckling generally seen less severe amongst This raises importance used over circular shapes owing advantages strength aestheticism.