ACI 341.3R 07:2007 Edition
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341.3R-07 Seismic Evaluation and Retrofit Techniques for Concrete Bridges
Published By | Publication Date | Number of Pages |
ACI | 2007 | 33 |
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.
PDF Catalog
PDF Pages | PDF Title |
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3 | CONTENTS |
4 | CHAPTER 1— INTRODUCTION |
5 | 1.1—Seismic vulnerability evaluation 1.2—Seismic demand-capacity evaluation |
6 | 1.3—Seismic retrofit measures 1.4—Implementation CHAPTER 2— SEISMIC VULNERABILITY EVALUATION |
7 | 2.1—Structural vulnerability indicators 2.1.1 Bridge geometry |
8 | 2.1.2 Structural redundancy 2.1.3 Expansion joint configuration and details 2.1.4 Age/design and detailing practices 2.1.5 Structural condition 2.1.6 Conditions of foundation soils |
9 | 2.2—Vulnerable structural elements 2.2.1 Columns 2.2.2 Cap beams |
10 | 2.2.3 Cap beam-column joints 2.2.4 Footings |
11 | 2.2.5 Hinges and supports 2.2.6 Superstructure |
12 | 2.2.7 Abutments and embankments CHAPTER 3— SEISMIC EVALUATION |
13 | 3.1—Seismic demand evaluation 3.1.1 Linear elastic analysis methods 3.1.2 Nonlinear analyses |
14 | 3.2—Seismic capacity evaluation |
15 | 3.3—Evaluation of demand-capacity ratios |
16 | CHAPTER 4— SEISMIC RETROFIT MEASURES 4.1—Columns |
20 | 4.2—Cap beams |
21 | 4.3—Cap beam-column joints |
22 | 4.4—Footings |
23 | 4.5—Hinges and supports |
24 | 4.6—Superstructures 4.7—Abutments 4.8—Dynamic isolation and mechanical devices |
25 | 4.9—General retrofit considerations |
26 | CHAPTER 5— CONCLUSIONS CHAPTER 6— REFERENCES 6.1— Referenced standards and reports 6.2—Cited references |