ACI 447.1R 18:2018 Edition
$29.52
447.1R-18: Report on the Modeling Techniques Used in Finite Element Simulations of Concrete Structures Strengthened Using Fiber-Reinforced Polymer (FRP) Materials 2018
| Published By | Publication Date | Number of Pages |
| ACI | 2018 | 24 |
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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 3 | TITLE PAGE |
| 4 | CHAPTER 1—INTRODUCTION AND SCOPE 1.1—Introduction 1.2—Scope CHAPTER 2—NOTATION AND DEFINITIONS 2.1—Notation |
| 5 | 2.2—Definitions CHAPTER 3—FINITE ELEMENT MODELING APPROACHES FOR FRP-STRENGTHENED RC MEMBERS 3.1—Modeling concrete compression 3.2—Modeling of concrete cracking |
| 6 | 3.3—Defining concrete fracture energy 3.4—Influence of shear retention factor |
| 7 | 3.5—Effect of bond between steel reinforcement and concrete 3.6—Modeling of FRP-to-concrete interface |
| 8 | 3.7—Influence of mesh size and element type |
| 9 | 3.8—Modeling FRP sheets and fabrics |
| 10 | 3.9—Calibration of material parameters CHAPTER 4—EXISTING STUDIES ON THE NUMERICAL MODELING OF DEBONDING FAILURE IN FRP-PLATED RC MEMBERS 4.1—Finite element (FE) simulations of debonding failure models for beams strengthened in flexure |
| 12 | 4.2—Modeling of shear-strengthened RC members using FRP |
| 15 | 4.3—Reinforced concrete members strengthened in torsion using FRP |
| 16 | 4.4—Modeling of FRP-to-concrete joints |
| 17 | 4.5—Axially strengthened RC columns using FRP |
| 18 | CHAPTER 5—CONCLUSIONS AND RECOMMENDED MODELING APPROACHES FOR FIBER-REINFORCED, POLYMER-STRENGTHENED REINFORCED CONCRETE MEMBERS CHAPTER 6—REFERENCES Authored documents |
