Workgroup Contents

Lecture 16.5 : Refurbishment of Bridges: New Approaches

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1. INTRODUCTION

2. PROBLEM

3. UPDATING OR REPRODUCTION OF DRAWINGS AND STATIC ANALYSIS

4. THE BASIS OF THE TOUGHNESS VERIFICATION

4.1 "Brittleness" and "Ductility"

4.2 Determination of Vital Elements

4.3 Assumption on Initial Cracks

4.4 Basic Verification Principles

4.5 The Use of the J-Integral

5. PRACTICAL VERIFICATION PROCEDURE

5.1 General

5.2 Determination of acrit

5.3 Determination of the Minimum Service Time N(tp)

5.4 Example for the Application

6. VERIFICATION IN CASE OF STRENGTHENING

7. PROCEDURE IF MEASURED MATERIAL PROPERTIES ARE NOT AVAILABLE

8. CONCLUDING SUMMARY

9. REFERENCES