437R-03: Strength Evaluation of Existing Concrete Buildings

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The strength of existing concrete buildings and structures can be evaluated analytically or in conjunction with a load test. The recommendations in this report indicate when such an evaluation may be needed, establish criteria for selecting the evaluation method, and indicate the data and background information necessary for an evaluation. Methods of determining material properties used in the analytical and load tests investigation are described in detail. Analytical investigations should follow the principles of strength design outlined in ACI 318. Working stress analysis can supplement the analytical investigations by relating the actual state of stress in structural components to the observed conditions. Procedures for conducting static load tests and criteria indicated for deflection under load and recovery are recommended.

Keywords: cracking; deflection; deformation; deterioration; gravity load; load; load test; reinforced concrete; strength; strength evaluation; test.


Document Details

Author: ACI Committee 437

Publication Year: 2003

Pages: 28

ISBN: 9780870311291

Categories: Torsion

Formats: PDF

This document is Historical

Table of Contents

Chapter 1—Introduction




1.4—Categories of evaluation

1.5—Procedure for a structural evaluation


1.7—Organization of the report

Chapter 2—Preliminary investigation

2.1—Review of existing information

2.2—Condition survey of the building

Chapter 3—Methods for material evaluation


3.2—Reinforcing steel

Chapter 4—Assessment of loading conditions and selection of evaluation method

4.1—Assessment of loading and environmental conditions

4.2—Selecting the proper method of evaluation

Chapter 5—Evaluation

5.1—Analytical evaluation

5.2—Supplementing the analytical evaluation with load tests

5.3—Research needs

Chapter 6—References

6.1—Referenced standards and reports

6.2—Cited references

6.3—Other references

Appendix A—Cyclic load test method

Appendix B—Reports from other organizations


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