423.5R-99: Report on Partially Prestressed Concrete

423.5R-99: Report on Partially Prestressed Concrete

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**WITHDRAWN DOCUMENT - This document has been discontinued by ACI and is available for informational purposes only.

Description

Partially prestressed concrete construction uses prestressed, or a combina-tionof prestressed and nonprestressed, reinforcement. Partially prestressedconcrete falls between the limiting cases of conventionally reinforced concrete and fully prestressed concrete, which allows no flexural tension under service loads. When flexural tensile stresses and cracking are llowed under service loads, the prestressed members have historically been called partially prestressed. This report is presented as an overview for partial prestressing of concrete structures. Research findings and design applications are presented. Specific topics discussed include the history of partial prestressing, behavior of partially prestressed concrete members under static loads, time-dependent effects, fatigue, and the effects of cyclic loadings.

 

Document Details

Author: ACI Committee 423

Publication Year: 2017

Pages: 37

ISBN:

Categories: Prestressed Concrete

Formats: PDF

This document is Withdrawn

Table of Contents

Chapter 1-Introduction

1.1-Historical perspective

1.2-Definition

1.3-Design of philosophy of partial prestressing

1.4-Advantages and disadvantages of partial prestressing

1.5-Partial prestressing and reinforcement indexes

1.6-Report objective

Chapter 2-Partially prestressed members under static loading

2.1-Behavior

2.2-Methods of analysis

2.3-Cracking

2.4-Deflection

2.5-Shear and torsion

Chapter 3-Time-dependent behavior

3.1-Prestress losses

3.2-Cracking

3.3-Deflections

3.4-Corrosion

Chapter 4-Effects of repeated loading (fatigue)

4.1-Background

4.2-Material fatigue strength

4.3-Fatigue in partially prestressed beams

4.4-Prediction of fatigue strength

4.5-Serviceability aspects

4.6-Summary of serviceability

Chapter 5-Effects of load reversals

5.1-Introduction

5.2-Design philosophy for seismic loadings

5.3-Ductility

5.4-Energy dissipation

5.5-Dynamic analyses

5.6-Connections

5.7-Summary

Chapter 6-Applications

6.1-Early applications

6.2-Pretensioned concrete components

6.3-Post-tensioned building construction

6.4-Bridges

6.5-Other applications

Chapter 7-References

7.1-Referenced standards and reports

7.2-Cited References

Appendix-Notations

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