ACI PRC-341.3-07 Seismic Evaluation and Retrofit Techniques for Concrete Bridges

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This document provides a summary of seismic evaluation and retrofit techniques for reinforced concrete bridges. The document is intended to be useful to practicing engineers and academic researchers. Three primary phases of a retrofit program are described: seismic vulnerability evaluation, evaluation of the seismic demands and capacities, and selection and design of the retrofit measures. General descriptions of appropriate linear and nonlinear analysis methods to evaluate the seismic response of an existing bridge are provided. Various retrofit measures for individual bridge components are described. In all cases, the information is presented at the conceptual level rather than providing detailed descriptions of the design method. A rich resource of references is included in each section of the document for obtaining more specific information on the subject matter.

Keywords: abutment; bridges; column; expansion joint; footing; hinge; joint; pier; pile; seismic analysis; seismic evaluation; seismic isolation; seismic retrofit.


Document Details

Author: ACI Committee 341

Publication Year: 2007

Pages: 29

ISBN: 9780870312557

Categories: Bridges

Formats: PDF

Table of Contents

Chapter 1—Introduction

1.1—Seismic vulnerability evaluation

1.2—Seismic demand-capacity evaluation

1.3—Seismic retrofit measures


Chapter 2—Seismic vulnerability evaluation

2.1—Structural vulnerability indicators

2.2—Vulnerable structural elements

Chapter 3—Seismic evaluation

3.1—Seismic demand evaluation

3.2—Seismic capacity evaluation

3.3—Evaluation of demand-capacity ratios

Chapter 4—Seismic retrofit measures


4.2—Cap beams

4.3—Cap beam-column joints


4.5—Hinges and supports



4.8—Dynamic isolation and mechanical devices

4.9—General retrofit considerations

Chapter 5—Conclusions

Chapter 6—References

6.1—Referenced standards and reports

6.2—Cited references


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