3D FE Modelling and Simulation of Reinforced Concrete Bridge Superstructure for Fatigue Analysis in ANSYS Workbench

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@article{1704948,
      author = {Obadiah Maxwell, Prof. Idris Abubakar, Prof. Abagana Mohammed},
      title = {3D FE Modelling and Simulation of Reinforced Concrete Bridge Superstructure for Fatigue Analysis in ANSYS Workbench},
      journal = {Iconic Research And Engineering Journals},
      year = {2023},
      volume = {7},
      number = {3},
      pages = {105-113},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/17049482.pdf},
      abstract = {Simulating and analyzing complex Reinforced Concrete (RC) structures in ANSYS Workbench has been a complex and tedious task to most users, prior to the introduction of ?REINFORCEMENT? workflow in ANSYS 2020 R2. This study utilized this new feature to simulate a 3D model of a single span, 11.3m span by 10.8m width from the 12-span Tamburawa Bridge Kano, Nigeria, using a standard Fatigue load model (FLM) specified in ASSHTO LRFD code. ANSYS Design Modeler was used to develop the Bridge Superstructure 3D model to specifications, material properties were modeled in ANSYS Engineering Data, while stress and fatigue analysis were achieved in Transient Structural Module of the ANSYS Workbench. The study found that the service stresses of the deck and critical Longitudinal Girder are 1.75N/mm2 and 29.42N/mm2 respectively, which are within the acceptable limit. The deck and Longitudinal Girder critical deflection were found as 3.90mm and 3.89mm respectively, which are also within the (L/1000 ? L/600)mm limit specified for Highway bridges. This is an indication that the Bridge Superstructure is serviceable. The Fatigue life of the Deck and critical longitudinal Girder were obtained as 1x106 Cycles and 0.48x106 Cycles respectively. The new ANSYS Workbench ?REINFORCEMENT? workflow has indeed proved useful for simulating complex RC structure, thereby eliminating the need to develop ANSYS parametric design language (APDL) code.},
      keywords = {ANSYS Workbench, Bridge Superstructure, Deflection, Fatigue Analysis, Finite Element Modelling, S-N data, Tamburawa Bridge, Reinforcement Workflow},
      month = {September},
  }