The strengthening of reinforced concrete (RC) members using fiber-reinforced polymers (FRPs) as externally bonded reinforcement has been widely used to enhance the flexural, shear, and axial capacity, or any combination thereof, of structural elements. Although experimental testing has been used predominantly as the sole method of investigation, numerical techniques such as the finite element (FE) method have also been gradually developed to provide predictive models for structural characterization. Well-calibrated FE models have the potential to expand the range of experimental data, provide information on important parameters difficult to measure using experimental instrumentation, and aid in the design of systems requiring complex FRP strengthening where testing may not be possible. This report provides a state-of-the-art review in the area of modeling of FRP-strengthened RC members and provides general guidelines on the best modeling practices that capture the complex phenomenon of concrete cracking and crushing, concrete shear retention, concrete fracture energy, steel-to-concrete bond behavior, FRP-to-concrete interface, FRP debonding failure modes, and FE mesh dependency.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 3<\/td>\n | TITLE PAGE \n <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | CHAPTER 1\u2014INTRODUCTION AND SCOPE 1.1\u2014Introduction 1.2\u2014Scope CHAPTER 2\u2014NOTATION AND DEFINITIONS 2.1\u2014Notation <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | 2.2\u2014Definitions CHAPTER 3\u2014FINITE ELEMENT MODELING APPROACHES FOR FRP-STRENGTHENED RC MEMBERS 3.1\u2014Modeling concrete compression 3.2\u2014Modeling of concrete cracking <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | 3.3\u2014Defining concrete fracture energy 3.4\u2014Influence of shear retention factor <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 3.5\u2014Effect of bond between steel reinforcement and concrete 3.6\u2014Modeling of FRP-to-concrete interface <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 3.7\u2014Influence of mesh size and element type <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 3.8\u2014Modeling FRP sheets and fabrics <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 3.9\u2014Calibration of material parameters CHAPTER 4\u2014EXISTING STUDIES ON THE NUMERICAL MODELING OF DEBONDING FAILURE IN FRP-PLATED RC MEMBERS 4.1\u2014Finite element (FE) simulations of debonding failure models for beams strengthened in flexure <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4.2\u2014Modeling of shear-strengthened RC members using FRP <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4.3\u2014Reinforced concrete members strengthened in torsion using FRP <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 4.4\u2014Modeling of FRP-to-concrete joints <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 4.5\u2014Axially strengthened RC columns using FRP <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | CHAPTER 5\u2014CONCLUSIONS AND RECOMMENDED MODELING APPROACHES FOR FIBER-REINFORCED, POLYMER-STRENGTHENED REINFORCED CONCRETE MEMBERS CHAPTER 6\u2014REFERENCES Authored documents <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" 447.1R-18: Report on the Modeling Techniques Used in Finite Element Simulations of Concrete Structures Strengthened Using Fiber-Reinforced Polymer (FRP) Materials 2018<\/b><\/p>\n |