An extended finite element model for modelling localised fracture of reinforced concrete beams in fire

• DOI: 10.1016/j.compstruc.2015.02.006
• Publication Date: 2015-03-03T22:45:20Z
• Authors: Feiyu Liao; Zhaohui Huang
• Keywords: Quadrilateral; Reinforced solid

A robust finite element procedure for modelling the localised fracture of reinforced concrete beams at elevated temperatures is developed. In this model a beam represented as an assembly 4-node quadrilateral plain concrete, 3-node main reinforcing steel bar, and 2-node bond-link elements. The subdivided into layers considering temperature distribution over cross-section beam. An extended method (XFEM) has been incorporated elements in order to capture cracks within concrete. validated against previous fire test results on beams.