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Summary
Summary
Fiber-reinforced polymer (FRP) decks have been increasingly used for new construction and rehabilitation projects worldwide. The benefits of using FRP bridge decks, such as durability, light weight, high strength, reduced maintenance costs, and rapid installation, outweigh their initial in-place material costs when implemented in highway bridge projects. FRP Deck and Steel Girder Bridge Systems: Analysis and Design compiles the necessary information to facilitate the development of the standards and guidelines needed to promote further adoption of composite sandwich panels in construction. It also, for the first time, proposes a complete set of design guidelines.
Providing both experimental investigations and theoretical analyses, this book covers three complementary parts: FRP decks, shear connectors between the deck and steel girders, and the behavior of bridge systems. The text presents stiffness and strength evaluations for FRP deck panels and FRP deck-girder bridge systems. While the FRP deck studies focus on honeycomb FPR sandwich panels over steel girder bridge systems, they can be adapted to other sandwich configurations. Similarly, the shear connection and bridge system studies can be applied to other types of FRP decks. Chapters discuss skin effect, core configuration, facesheet laminates, out-of-plane compression and sheer, mechanical shear connectors, and FRP deck-steel girder bridge systems.
Based on the findings described in the text, the authors propose design guidelines and present design examples to illustrate application of the guidelines. In the final chapter, they also provide a systematic analysis and design approach for single-span FRP deck-stringer bridges. This book presents new and improved theories and combines analytical models, numerical analyses, and experimental investigations to devise a practical analysis procedure, resulting in FRP deck design formulations.
Author Notes
Dr. Julio F. Davalos is a professor and chair of the Department of Civil Engineering at the City College of New York - CUNY. His expertise is in mechanics and structural engineering, and his research work includes theoretical and experimental studies on advanced materials and systems. His work is directed to civil infrastructure rehabilitation, protection, and sustainable construction, with particular emphasis on highway bridges, buildings, and mass transit tunnels. Dr. Davalos has been honored with over 60 academic/state/national awards for teaching, research, and innovative designs and concepts, and he holds several patent applications in materials and structures. His publications record, approximately 300 articles, includes several position papers and book chapters.
Dr. An Chen is an assistant professor of civil engineering at the University of Idaho. His research background is in sustainable structural engineering, covering advanced materials, interface bond and fracture mechanics, and applied mechanics. His research can be broadly categorized into two areas: (1) green buildings and (2) sustainable civil infrastructure. Dr. Chen has extensive industrial experience as a project manager in New York City, where he completed designs of numerous new and renovation projects for high-rise and middle-rise buildings. He has three pending patents and his publications record includes about 60 refereed journal and conference papers and project reports.
Dr. Pizhong Qiao is a professor of civil and environmental engineering at Washington State University, chair professor at Shanghai Jiao Tong University, and founder of Integrated Smart Structures, Inc. (Copley, Ohio). He has been working in development, research, and application of advanced and high-performance materials in civil and aerospace engineering. His extensive publications record includes about 300 technical articles (several book chapters, 132 international journal articles, and more than 160 conference proceedings papers/presentations). He is one of the most highly cited scientists (about the top 1%) in the field of engineering according to Essential Science Indicators (ESI).
Table of Contents
Series Preface | p. ix |
Preface | p. xi |
Acknowledgments | p. xiii |
About the Authors | p. xv |
1 Introduction | p. 1 |
1.1 Background | p. 1 |
1.2 Implementation of HFRP Sandwich Deck Panels in Highway Bridges | p. 4 |
1.3 Objectives | p. 6 |
1.4 Organization | p. 6 |
References | p. 7 |
2 FRP Deck: Stiffness Evaluation | p. 9 |
2.1 Stiffness of FRP Honeycomb Sandwich Panels with Sinusoidal Core | p. 9 |
2.1.1 Introduction | p. 9 |
2.1.2 Modeling of FRP Honeycomb Panels | p. 10 |
2.1.3 Behavior of FRP Honeycomb Beams | p. 20 |
2.1.4 Behavior of FRP Honeycomb Sandwich Panel | p. 26 |
2.1.5 Conclusions | p. 28 |
2.2 On the Transverse Shear Stiffness of Composite Honeycomb Core with General Configuration | p. 28 |
2.2.1 Introduction | p. 28 |
2.2.2 Application of Homogenization Theory | p. 32 |
2.2.3 Derivation of Effective Transverse Shear Stiffness | p. 35 |
2.2.4 Verification Using Finite Element Analysis | p. 44 |
2.2.5 Summary and Discussions | p. 46 |
2.2.6 Conclusions | p. 49 |
2.3 Homogenized Elastic Properties of Honeycomb Sandwiches with Skin Effect | p. 49 |
2.3.1 Introduction | p. 49 |
2.3.2 Literature Review | p. 52 |
2.3.3 Formulation of Honeycomb Homogenization Problem | p. 54 |
2.3.4 Analytical Approach-Multipass Homogenization (MPH) Technique | p. 61 |
2.3.5 Periodic Unit Cell Finite Element Analysis | p. 87 |
2.3.6 Summary and Concluding Remarks | p. 94 |
References | p. 97 |
3 FRP Deck: Strength Evaluation | p. 101 |
3.1 Overview | p. 101 |
3.2 Literature Review | p. 102 |
3.2.1 Introduction | p. 102 |
3.2.2 Out-of-Plane Compression | p. 102 |
3.2.3 Out-of-Plane Shear | p. 105 |
3.2.4 Facesheet Study | p. 109 |
3.3 Out-of-Plane Compression | p. 113 |
3.3.1 Introduction | p. 113 |
3.3.2 Analytical Models | p. 113 |
3.3.3 Experimental Investigation | p. 121 |
3.3.4 FE Analysis | p. 129 |
3.3.5 Determination of the Coefficient of Elastic Restraint | p. 131 |
3.3.6 Comparisons of Test Results with Analytical and FE Predictions | p. 134 |
3.3.7 Parametric Study | p. 134 |
3.3.8 Design Equations | p. 136 |
3.3.9 Concluding Remarks | p. 137 |
3.4 Out-of-Plane Shear | p. 139 |
3.4.1 Introduction | p. 139 |
3.4.2 Analytical Model Including Skin Effect | p. 139 |
3.43 CER Effect on Shear Stiffness and Interfacial Shear Stress Distribution | p. 154 |
3.4.4 Shear Buckling | p. 155 |
3.4.5 Proposed Method to Predict Failure Load | p. 158 |
3.4.6 Experimental Investigation | p. 159 |
3.4.7 Correlations between Test Results and Prediction from Design Equations | p. 166 |
3.4.8 FE Simulation | p. 171 |
3.4.9 Conclusions | p. 173 |
3.5 Facesheet Study | p. 173 |
3.5.1 Introduction | p. 173 |
3.5.2 Progressive Failure Model | p. 174 |
3.5.3 Verification Study | p. 176 |
3.5.4 Parametric Study on Facesheet | p. 179 |
3.5.5 Experimental Investigation | p. 182 |
3.5.6 Correlation between FE and Experimental Results | p. 191 |
3.5.7 Discussions | p. 196 |
3.5.8 Conclusions | p. 196 |
Appendix 3.A Strength Data of Core Materials | p. 198 |
Appendix 3.B Derivation of Equilibrium Equation | p. 200 |
Appendix 3.C Shear Test for Facesheet Laminates | p. 202 |
Appendix 3.D Stiffness of Facesheet Laminates and Core Materials | p. 206 |
References | p. 207 |
4 Mechanical Shear Connector for FRP Decks | p. 211 |
4.1 Introduction | p. 211 |
4.2 Prototype Shear Connection | p. 215 |
4.3 Push-Out Test | p. 216 |
4.3.1 Specimen and Test Setup | p. 216 |
4.3.2 Test Procedures | p. 217 |
4.3.3 Test Results and Discussions | p. 218 |
4.4 Conclusions | p. 223 |
References | p. 223 |
5 FRP Deck-Steel Girder Bridge System | p. 225 |
5.1 Overview | p. 225 |
5.2 Experimental and FE Study on Scaled Bridge Model | p. 226 |
5.2.1 Introduction | p. 226 |
5.2.2 Test Plan | p. 227 |
5.2.3 Test Models | p. 228 |
5.2.4 Test Procedures | p. 233 |
5.2.5 Test Results | p. 236 |
5.2.6 Finite Element Model | p. 242 |
5.2.7 FE Analysis Results | p. 244 |
5.2.8 Conclusions | p. 245 |
5.2.9 Evaluation of FRP Panel Properties | p. 246 |
5.3 Evaluation of Effective Flange Width by Shear Lag Model | p. 251 |
5.3.1 Introduction | p. 251 |
5.3.2 Shear Lag Model | p. 253 |
5.3.3 Finite Element Study | p. 258 |
5.3.4 Comparison between Shear Lag Model and Empirical Functions | p. 261 |
5.3.5 Application of Shear Lag Model to FRP Deck | p. 263 |
5.3.6 Conclusions | p. 264 |
References | p. 265 |
6 Design Guidelines for FRP Deck-Steel Girder Bridge Systems | p. 267 |
6.1 Design Guidelines | p. 267 |
6.1.1 FRP Deck | p. 267 |
6.1.2 Shear Connector | p. 272 |
6.1.3 Bridge System | p. 273 |
6.2 Example | p. 274 |
6.2.1 FRP Deck | p. 276 |
6.2.2 Bridge System | p. 279 |
6.2.3 Discussions | p. 288 |
6.3 Conclusions | p. 288 |
References | p. 288 |
7 Systematic Analysis and Design Approach for Single-Span FRP Deck-Stringer Bridges | p. 289 |
7.1 Introduction | p. 289 |
7.2 Panel and Beam Analysis | p. 290 |
7.2.1 Panel Analysis by Micro/Macromechanics | p. 291 |
7.2.2 Beam Analysis by Mechanics of Laminated Beams | p. 293 |
7.3 FRP Cellular Decks: Elastic Equivalence | p. 294 |
7.3.1 Equivalent Stiffness for Cellular FRP Decks | p. 294 |
7.3.2 Verification of Deck Stiffness Equations by Finite Element Analysis | p. 298 |
7.3.3 Equivalent Orthotropic Material Properties | p. 303 |
7.3.4 Experimental and Numerical Verification of Equivalent Orthotropic Material Properties | p. 304 |
7.4 Analysis of FRP Deck-Stringer Bridge System | p. 308 |
7.4.1 First-Order Shear Deformation Theory for FRP Composite Deck | p. 308 |
7.4.2 Wheel Load Distribution Factors | p. 312 |
7.4.3 Design Guidelines | p. 313 |
7.4.4 Experimental Testing and Numerical Analysis of FRP Deck-Stringer Systems | p. 314 |
7.5 Design Analysis Procedures and Illustrative Example | p. 316 |
7.5.1 General Design Procedures | p. 316 |
7.5.2 Design Example | p. 316 |
7.6 Conclusions | p. 318 |
References | p. 318 |
Index | p. 321 |