423.3R-96: Recommendations for Concrete Members Prestressed with Unbonded Tendons

423.3R-96: Recommendations for Concrete Members Prestressed with Unbonded Tendons

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Description

This report is presented as a guide for the design of flexural structural members in buildings with unbonded tendons. Suggestions are presented for needed revisions and additions to the ACI 318 Building Code regarding this subject. Consideration is given to determination of fire endurance, design for seismic forces and catastrophic loadings, in addition to design for gravity and lateral loads. Recommendations are presented concerning details and properties of tendons, protection against corrosion and construction procedures.

 

Document Details

Author: ACI Committee 423

Publication Year: 2017

Pages: 19

ISBN: 9780870315206

Categories: Prestressed Concrete

Formats: PDF

This document is Historical

Table of Contents

Chapter 1--Introduction

1.1--General

1.2--Objective

1.3--Scope

1.4--Notations and definitions

Chapter 2--Design considerations

2.1--General

2.2--Continuous members

2.3--Corrosion protection

2.4--Fire resistance

2.5--Earthquake loading

Chapter 3--Design

3.1--General

3.2--One-way systems

3.3--Two-way systems

3.4--Tendon stress at design load

3.5--Prestress losses

3.6--Average prestress

3.7--Supporting walls and columns

3.8--Serviceability requirements

3.9--Design strength

3.10--Anchorage zone reinforcement

Chapter 4--Materials

4.1--Tendons

4.2--Protection materials

4.3--Protection of anchorage zones

4.4--Concrete cover

Chapter 5--Construction

5.1--Construction joints

5.2--Closure strips

5.3--Placement of tendons

5.4--Concrete placement and curing

5.5--Stressing operations

5.6--Form removal and reshoring

5.7--Welding and burning

Chapter 6--References

6.1--Specified and recommended references

6.2--Cited references

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