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Structural Cross Sections

Book Description

Structural Cross Sections: Analysis and Design provides valuable information on this key subject covering almost all aspects including theoretical formulation, practical analysis and design computations, various considerations and issues related to cross-sectional behavior, and computer applications for determination of cross-sectional response. The presented approach can handle all complex shapes, material behaviors and configurations. The book starts with a clear and rigorous overview of role of cross-sections and their behavior in overall structural design process. Basic aspects of structural mechanics are reviewed and procedures to determine basic cross-sectional properties, stress and strain distributions, stress resultants and other response parameters, are provided. A brief discussion about the role of material behavior in cross-sectional response is also included. The unified and integrated approach to determine axial-flexural capacity of cross-sections is utilized in development of P-M and M-M interaction diagrams of cross-sections of various shapes. The behavior and design of cross-sections subjected to shear and torsion is also included with emphasis on reinforced concrete sections. Several detailed flow charts are included to demonstrate the procedures used in ACI, BS and Euro codes for design of cross-section subjected to shear and torsion, followed by solved examples. The book also presents the discussion about various factors that can lead to ductile response of cross-sections, especially those made of reinforced concrete. The definition and development of action-deformation curves especially moment-curvature (-) curve is discussed extensively. Various factors such as confinement, rebar distribution and axial load effect on the ductility are shown through examples. The use of moment-curvature curve to compute various section response parameters is also explained though equations and examples. Several typical techniques and materials for retrofitting of cross-sections of reinforced concrete beams, columns and slabs etc. are reviewed. A brief discussion of various informative references related to the evaluation and retrofitting of structures is included for practical applications. Towards the end, the book provides an overview of various software applications available for cross-section design and analysis. A framework for the development of a general-purpose cross-section analysis software, is presented and various features of few commercially available software packages are compared using some example cross-sections.

Table of Contents

  1. Cover image
  2. Title page
  3. Table of Contents
  4. Copyright
  5. Dedication
  6. About the Authors
  7. Preface
  8. Acknowledgments
  9. Chapter One. Structures and Structural Design
    1. Abstract
    2. The Hierarchy of Structures and Their Components
    3. Designing the Structures
    4. The Building Blocks of Structural Mechanics
    5. Cross-Sectional Analysis and Design
    6. References
    7. Further Reading
  10. Chapter Two. Understanding Cross-Sections
    1. Abstract
    2. Introduction
    3. Applications and Classification of Cross-Sections
    4. Definition and Representation
    5. Cross-Section Properties—An Overview
    6. Basic Cross-Section Properties
    7. Derived Cross-Section Properties
    8. Specific Properties of RC Sections
    9. Specific Properties of Steel Sections
    10. Numerical Computations of Section Properties
    11. Solved Examples
    12. Unsolved Examples
    13. Symbols and Notation
    14. References
    15. Further Reading
  11. Chapter Three. Axial–Flexual Response of Cross-Sections
    1. Abstract
    2. Cross-Section Response
    3. External Actions and Internal Stresses
    4. Axial–Flexural Stress Resultants
    5. The General Stress Resultant Equations
    6. Extended Formulation of Stress Resultant Equations
    7. Computing the Biaxial-Fexural Stress Resultants
    8. The Capacity Interaction Surface
    9. Biaxial–Flexural Capacity
    10. Code-Based Design for Flexure
    11. Solved Examples
    12. Unsolved Examples
    13. Symbols and Notations
    14. References
  12. Chapter Four. Response and Design for Shear and Torsion
    1. Abstract
    2. Introduction
    3. Basic Elastic Response
    4. Response of Reinforced Concrete (RC) Sections
    5. Code-Based Shear and Torsion Design of RC Sections
    6. Solved Examples
    7. Unsolved Problems
    8. References
    9. Further Reading
  13. Chapter Five. Response and Design of Column Cross-Sections
    1. Abstract
    2. Introduction
    3. Complexities Involved in Analysis and Design of Columns
    4. Slenderness and Stability Issues in Columns
    5. Column Design Process and Procedures
    6. Practical Design Considerations for RC Columns
    7. Some Special Cases and Considerations
    8. Concluding Remarks
    9. Solved Examples
    10. Unsolved Examples
    11. References
    12. Further Reading
  14. Chapter Six. Ductility of Cross-Sections
    1. Abstract
    2. What Is Ductility?
    3. Action–Deformation Curves
    4. Significance of the Moment–Curvature (M––ϕ) Curve
    5. Ductility and Confinement of Reinforced Concrete Sections
    6. Factors Affecting Moment–Curvature Relationship and Ductility of RC Sections
    7. Concrete-Filled Steel Tubes
    8. Role of Cross-Sectional Response in Nonlinear Analysis of Structures
    9. Solved Examples
    10. Unsolved Problems
    11. References
    12. Further Reading
  15. Chapter Seven. Retrofitting of Cross-Sections
    1. Abstract
    2. Overview
    3. Overall Retrofit Process and Strategies for Structures
    4. Retrofitting Techniques for Cross-Sections
    5. Retrofitting of Reinforced Concrete Members
    6. Analysis of Cross-Sections Exposed to Fire
    7. Solved Examples
    8. Unsolved Examples
    9. References
    10. Further Reading
  16. Chapter Eight. Software Development and Application for the Analysis of Cross-Sections
    1. Abstract
    2. Introduction
    3. A General Framework for the Development of Structural Engineering Applications
    4. Framework for the Development of Cross-Section Analysis Applications
    5. Introduction to CSiCOL
    6. Mobile Devices and the Cloud for Structural Engineering Applications
    7. Current Research Trends and Future Potential
    8. References
    9. Further Reading
  17. Appendix A. Cross-Sectional Properties of Some Common Shapes
  18. Appendix B. Torsional Constant Factors
  19. Index