Finite element modelling of reinforcement with bond

• Published in: Computers & structures Vol. 84; no. 28; pp. 1780 - 1791
• Main Authors: Jendele, Libor, Cervenka, Jan
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.11.2006; Elsevier Science
• Subjects: Applied sciences; Building structure; Buildings. Public works; Computational techniques; Construction (buildings and works); Exact sciences and technology; FEM method; Fracture mechanics (crack, fatigue, damage...); Fundamental areas of phenomenology (including applications); Mathematical methods in physics; Nonlinear analysis; Physics; Reinforced concrete; Reinforced concrete structure; Reinforcement bond; Solid mechanics; Structural and continuum mechanics; Structural design; Structural design; Reinforcement bond; FEM method; Nonlinear analysis; Reinforced concrete; Prestress; Collapsible tube; Rupture; Shear strength; Ice; Experimental study; Modeling; Hollow slab; Holding resistance; Concrete reinforcing bar; Finite element method; Interface properties; Concrete construction; Surface properties; Non linear effect; Reinforcing bar; Strength; Structural analysis
• ISSN: 0045-7949; 1879-2243
• DOI: 10.1016/j.compstruc.2006.04.010

This paper presents an efficient numerical model for simulating the bond between reinforcing bars and concrete. It is based on the one-dimensional geometry of reinforcing bars, and it considers interface surface properties. In spite of its relative simplicity, it allows the application of the same physical models as in the case of a full surface interface. An arbitrary bond-slip relationship can be implemented within the model. Four sample analyses are presented: reinforcement bar pull-out experiment, an example of a beam collapsing due to shear failure, an analysis of the shear strength of pre-stressed hollow core slabs and an assessment of serviceability of a pre-stressed concrete slab in the newly built ice hockey arena in Prague.