Stability Evaluation of Thin-Walled Steel Tubular Bridge Piers under Cyclic In-Plane Eccentric Lateral and Constant Axial Loading

EasyChair Preprint 15979

Abstract

This study examines the structural response of these columns under cyclic lateral loading combined with constant axial force, emphasizing ultimate strength, ductility, and the influence of load eccentricity. An elastoplastic finite element analysis was conducted to evaluate the behavior of eccentrically loaded columns. Results indicate that increasing the eccentricity reduces load capacity on the eccentric side while enhancing it on the opposite side. When the eccentricity remains within 40% of the pier height, the buckling patterns are comparable to those of centrally loaded columns. These findings offer valuable insights into the seismic performance and design optimization of thin-walled steel tubular bridge piers.

Keyphrases: Buckling, Eccentric Cyclic loading, Thin-walled, bridge piers, ductility, steel, strength

@booklet{EasyChair:15979,
  author    = {Iraj Hossein Pouli Mamaghani and Redeat Kassaye},
  title     = {Stability Evaluation of Thin-Walled Steel Tubular Bridge Piers under Cyclic In-Plane Eccentric Lateral and Constant Axial Loading},
  howpublished = {EasyChair Preprint 15979},
  year      = {EasyChair, 2025}}