Seismic Design Aids for Nonlinear Analysis of Reinforced Concrete Structures

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ISBN 9781439809143
Cat# K10453



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ISBN 9781439809150
Cat# KE10427



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  • Helps engineers conduct seismic assessment of buildings and design new structures
  • Enables designers and practicing engineers to readily use provided design curves, without the need for complex mathematics
  • Offers links to accompanying software to aid in computing input parameters
  • Provides complete computer coding, used for obtaining building collapse multipliers
  • Presents revolutionary and easy-to-use tools for nonlinear analysis of reinforced concrete structures
  • Includes chapter introductions, summaries, conclusions, and spreadsheet programs
  • Summary

    Tools to Safeguard New Buildings and Assess Existing Ones

    Nonlinear analysis methods such as static pushover are globally considered a reliable tool for seismic and structural assessment. But the accuracy of seismic capacity estimates—which can prevent catastrophic loss of life and astronomical damage repair costs—depends on the use of the correct basic input parameters.

    Seismic Design Aids for Nonlinear Analysis of Reinforced Concrete Structures simplifies the estimation of those vital parameters. Many design engineers make the relatively common mistake of using default properties of materials as input to nonlinear analyses without realizing that any minor variation in the nonlinear characteristics of constitutive materials, such as concrete and steel, could result in a solution error that leads to incorrect assessment or interpretation.

    Streamlined Analysis Using a Mathematical Model

    To achieve a more accurate pushover analysis and improve general performance-based design, this book reassesses some key inputs, including axial force-bending moment yield interaction, moment-curvature, and moment-rotation characteristics. It analyzes these boundaries using a detailed mathematical model of reinforced concrete sections based on international codes, and then proposes design curves and tables derived from the authors’ studies using a variety of nonlinear tools, computer programs, and software. The text reviews relevant literature and describes mathematical modeling, detailing numerical procedures step by step.

    Including supplementary online material that can be used to compute any parameter, this reference delineates nonlinear properties of materials so that they can be used instantly for seismic analysis without having to solve cumbersome equations.

    Table of Contents

    Axial Force–Bending Moment Yield Interaction

    Mathematical Development

    Identification of Subdomains

    Numerical Studies and Discussions

    Numerical Procedure in Spreadsheet Format


    Moment-Curvature Relationship for RC Sections in Presence of Axial Force

    Mathematical Development

    Moment-Curvature in Elastic Range

    Elastic Limit Bending Moment and Curvature

    Percentage of Steel for Balanced Section

    Ultimate Bending Moment-Curvature Relationship

    Numerical Studies and Discussions

    Step-by-Step Procedure to Use the Spreadsheet Program Given on the Website


    Moment-Relative Rotation Relationship for RC Beams

    Mathematical Development

    Analytical Moment-Rotation Relationships

    Numerical Studies and Beam Examples


    Bounds for Collapse Loads of Building Frames Subjected to Seismic Loads: A Comparison with Nonlinear Static Pushover

    Collapse Multipliers

    Step-by-Step Analysis for a Simple Frame with P-M Interaction

    Numerical Studies and Frame Examples


    Flow Rule Verification for P-M Interaction Domains

    Mathematical Development

    Plastic Strain Increment in Different Subdomains

    Verification of Flow Rule

    Appendix: Summary of P-M Relationships for Different



    Computer Coding for Collapse Multipliers

    Procedure to Perform Pushover Analysis



    Downloads / Updates

    Resource OS Platform Updated Description Instructions Cross Platform January 06, 2009