Seismic Design Aids for Nonlinear Pushover Analysis of Reinforced Concrete and Steel Bridges

Jeffrey Ger, Franklin Y. Cheng

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August 18, 2011 by CRC Press
Reference - 400 Pages - 177 B/W Illustrations
ISBN 9781439837634 - CAT# K11711
Series: Advances in Earthquake Engineering

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Features

  • Presents step-by-step numerical procedures to demonstrate how to perform pushover analysis
  • Discusses new technology for displacement-based seismic analysis with various nonlinear member stiffness formulations
  • Uses numerous examples to demonstrate the accuracy of analytical prediction by comparing numerical results with full- or large-scale test results
  • Offers downloadable INSTRUCT software that allows readers to perform pushover analyses
  • Provides examples, illustrations, and detailed computer input/output descriptions
  • Includes extensive appendices containing mathematic derivations and basic knowledge on the dynamic analysis of structures

Summary

Nonlinear static monotonic (pushover) analysis has become a common practice in performance-based bridge seismic design. The popularity of pushover analysis is due to its ability to identify the failure modes and the design limit states of bridge piers and to provide the progressive collapse sequence of damaged bridges when subjected to major earthquakes. Seismic Design Aids for Nonlinear Pushover Analysis of Reinforced Concrete and Steel Bridges fills the need for a complete reference on pushover analysis for practicing engineers.

This technical reference covers the pushover analysis of reinforced concrete and steel bridges with confined and unconfined concrete column members of either circular or rectangular cross sections as well as steel members of standard shapes. It provides step-by-step procedures for pushover analysis with various nonlinear member stiffness formulations, including:

  • Finite segment–finite string (FSFS)
  • Finite segment–moment curvature (FSMC)
  • Axial load–moment interaction (PM)
  • Constant moment ratio (CMR)
  • Plastic hinge length (PHL)

Ranging from the simplest to the most sophisticated, the methods are suitable for engineers with varying levels of experience in nonlinear structural analysis.

The authors also provide a downloadable computer program, INSTRUCT (INelastic STRUCTural Analysis of Reinforced-Concrete and Steel Structures), that allows readers to perform their own pushover analyses. Numerous real-world examples demonstrate the accuracy of analytical prediction by comparing numerical results with full- or large-scale test results. A useful reference for researchers and engineers working in structural engineering, this book also offers an organized collection of nonlinear pushover analysis applications for students.