NCHRP Report 679: Design of Concrete Structures Using High-Strength Steel Reinforcement

Not for Sale

Download

Table of Contents
Front Matter R1-R10
Summary 1-4
1.1 Introduction 5-5
1.3.1 Mechanical Properties of A1035 Reinforcing Steel 6-6
1.3.2 Tension Properties of A1035 Reinforcing Steel 7-7
1.3.3 Flexural Reinforcement 8-8
1.3.4 Shear Reinforcement 9-9
1.3.6 Bond and Development 10-10
1.3.7 Serviceability Considerations 11-12
1.3.8 Corrosion Performance of Reinforcing Steel Grades 13-13
1.4 Survey of Use of High-Strength Steel Reinforcement in Bridge Structures 14-14
1.4.2 Reported Use of A1035 Reinforcing Steel in Highway Bridge Infrastructure 15-15
2.2.1 ASTM A1035 Reinforcing Steel 16-17
2.3.1 Flexural Resistance 18-20
2.3.2 Tension-Controlled and Compression-Controlled Strain Limits for High-Strength ASTM A1035 Reinforcing Bars 21-22
2.3.4 Experimental Evaluation 23-24
2.3.5 Summary and Recommendations 25-25
2.4 Fatigue Performance of High-Strength Reinforcing Steel 26-26
2.4.2 Effect of High-Strength Steel on the AASHTO Fatigue Provisions 27-27
2.4.3 Fatigue of Slabs (AASHTO LRFD Section 9) 28-28
2.4.4 Fatigue Test Specimens 29-29
2.4.5 Summary of Fatigue Tests and Conclusions 30-31
2.5.2 Experimental Evaluation 32-36
2.6 Shear Friction 37-37
2.6.1 Experimental Program 38-39
2.6.2 Experimental Results 40-42
2.7 Compression Members 43-43
2.7.1 Column Capacity 44-44
2.7.2 Spacing of Spiral Reinforcement 45-47
2.8.1 Splice Development 48-49
2.8.2 Hook Anchorage 50-54
2.9 Serviceability Considerations 55-55
2.9.1 Deflections of Flexural Members 56-56
2.9.2 Crack Widths 57-57
2.9.3 Summary and Conclusions 58-58
3.1.3 Proposed Changes to Section 9 of the LRFD Specifications 59-60
3.2.2 Flexure 61-61
3.3.1 Application in Seismic Zones 2, 3, and 4 62-62
3.3.5 Control of Flexural Cracking and Corrosion 63-63
References 64-67
Notation 68-71
Appendices 72-72
Abbreviations used without definitions in TRB publications 73-73

Table of Contents

Front Matter R1-R10

Summary 1-4

1.1 Introduction 5-5

1.3.1 Mechanical Properties of A1035 Reinforcing Steel 6-6

1.3.2 Tension Properties of A1035 Reinforcing Steel 7-7

1.3.3 Flexural Reinforcement 8-8

1.3.4 Shear Reinforcement 9-9

1.3.6 Bond and Development 10-10

1.3.7 Serviceability Considerations 11-12

1.3.8 Corrosion Performance of Reinforcing Steel Grades 13-13

1.4 Survey of Use of High-Strength Steel Reinforcement in Bridge Structures 14-14

1.4.2 Reported Use of A1035 Reinforcing Steel in Highway Bridge Infrastructure 15-15

2.2.1 ASTM A1035 Reinforcing Steel 16-17

2.3.1 Flexural Resistance 18-20

2.3.2 Tension-Controlled and Compression-Controlled Strain Limits for High-Strength ASTM A1035 Reinforcing Bars 21-22

2.3.4 Experimental Evaluation 23-24

2.3.5 Summary and Recommendations 25-25

2.4 Fatigue Performance of High-Strength Reinforcing Steel 26-26

2.4.2 Effect of High-Strength Steel on the AASHTO Fatigue Provisions 27-27

2.4.3 Fatigue of Slabs (AASHTO LRFD Section 9) 28-28

2.4.4 Fatigue Test Specimens 29-29

2.4.5 Summary of Fatigue Tests and Conclusions 30-31

2.5.2 Experimental Evaluation 32-36

2.6 Shear Friction 37-37

2.6.1 Experimental Program 38-39

2.6.2 Experimental Results 40-42

2.7 Compression Members 43-43

2.7.1 Column Capacity 44-44

2.7.2 Spacing of Spiral Reinforcement 45-47

2.8.1 Splice Development 48-49

2.8.2 Hook Anchorage 50-54

2.9 Serviceability Considerations 55-55

2.9.1 Deflections of Flexural Members 56-56

2.9.2 Crack Widths 57-57

2.9.3 Summary and Conclusions 58-58

3.1.3 Proposed Changes to Section 9 of the LRFD Specifications 59-60

3.2.2 Flexure 61-61

3.3.1 Application in Seismic Zones 2, 3, and 4 62-62

3.3.5 Control of Flexural Cracking and Corrosion 63-63

References 64-67

Notation 68-71

Appendices 72-72

Abbreviations used without definitions in TRB publications 73-73