Table of Contents
PREFACE, p. 4
CHAPTER 1—GENERAL, p. 5
1.1—Scope 5
1.2—General 5
1.3—Purpose 5
1.4—Interpretation 6
1.5—Authority having jurisdiction 7
1.6—Licensed design professional 7
1.7—Inspector 7
1.8—Design and construction documents 7
1.9—Testing and inspection 8
1.10—Approval of special systems of design, construction, or alternative construction materials 8
CHAPTER 2—NOTATION AND DEFINITIONS, p. 9
2.1—Code notation 9
2.2—Definitions 12
CHAPTER 3—REFERENCED STANDARDS, p. 15
3.1—American Concrete Institute 15
3.2—American Society of Civil Engineers 15
3.3—ASTM International 15
3.4—Underwriters Laboratories 16
CHAPTER 4—FRP SYSTEM REQUIREMENTS, p. 17
4.1—General 17
4.2—Wet layup FRP systems 17
4.3—Precured carbon FRP systems 17
4.4—FRP near-surface-mounted bars 18
CHAPTER 5—CONCRETE SUBSTRATE REQUIREMENTS, p. 20
5.1—General 20
5.2—Bond critical externally bonded FRP systems 20
5.3—Contact critical externally bonded FRP systems 21
5.4—NSM FRP systems 21
CHAPTER 6—GENERAL DESIGN REQUIREMENTS, p. 22
6.1—General 22
6.2—Basis of design 22
6.3—Load factors and combinations 22
6.4—Design material properties 23
6.5—Maximum sustained loads 23
6.6—Maximum service temperature 24
6.7—Durability requirements 24
CHAPTER 7—DESIGN AND DETAILING FOR FLEXURAL STRENGTHENING, p. 25
7.1—General 25
7.2—Design strength 25
7.3—Design requirements 26
7.4—Nominal flexural strength 28
7.5—Moment redistribution for continuous reinforced concrete beams 31
7.6—Anchorage and development of externally bonded FRP 31
7.7—Development of near-surface-mounted FRP flexural strengthening 33
CHAPTER 8—DESIGN AND DETAILING FOR SHEAR STRENGTHENING, p. 35
8.1—General 35
8.2—Sectional requirements 35
8.3—FRP System wrapping schemes 35
8.4—Design strength 36
8.5—Nominal shear strength 36
8.6—FRP Contribution to shear strength 36
8.7—Anchorage for U-wraps 38
8.8—Details for FRP shear strengthening 41
CHAPTER 9—DESIGN AND DETAILING FOR AXIAL FORCE AND COMBINED AXIAL FORCE AND MOMENT STRENGTHENING, p. 42
9.1—General 42
9.2—Axial compression 42
9.3—Combined axial compression and bending 46
CHAPTER 10—FIRE RESISTANCE, p. 48
10.1—General 48
10.2—Fire resistance of FRP-strengthened members 48
CHAPTER 11—FIELD INSPECTION, TESTING, AND EVALUATION, p. 50
11.1—General 50
11.2—Field inspection 50
11.3—Material testing 51
11.4—Evaluation and acceptance criteria 52
11.5—Inspection of coatings 52
COMMENTARY REFERENCES, p. 53
Authored documents 54
APPENDIX A—ADDITIONAL LOAD COMBINATIONS FOR FRP STRENGTHENING, p. 56
A.1—Appendix notation 56
A.2—Scope 56
A.3—Additional load combinations for FRP strengthening 56