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440.2R-02
The second publication in ACI's Emerging Technology series offers general information on the history and use of FRP strengthening systems; a description of the unique material properties of FRP; and committee recommendations on the engineering, construction, and inspection of FRP systems used to strengthen concrete structures. The proposed guidelines are based on the knowledge gained from worldwide experimental research, analytical work, and field applications of FRP systems used to strengthen concrete structures. Contents: Chapter 1-INTRODUCTION 1.1-Cope and limitations 1.2-Applications and use 1.3-Use of proprietary FRP systems 1.4-Definitions and acronyms 1.5-Notation
2.1-Historical development 2.2-Commercially available externally bonded FRP systems
Chapter 3-CONSTITUENT MATERIALS AND PROPERTIES 3.1-Constituent Materials 3.2-Physical Properties 3.3-Mechanical properties and behavior 3.4-Time dependent behavior 3.5-FRP system qualification
Chapter 4-Shipping, storage, and handling 4.1-Shipping 4.2-Storage 4.3-Handling
5.1-Constractor Competency 5.2-Temperature, humidity, and moisture considerations 5.3-Equipment 5.4-Substrate repair and surface preparation 5.5-Mixing of resins 5.6-Application of constituent materials 5.7-Alignment of FRP materials 5.8-Multiple plies and lap splices 5.9-Curing of resins 5.10-Temporary protection
6.1-Inspection 6.2-Evaluation and acceptance
7.1-General 7.2-Inspection and assessment 7.3-Repair of strengthening system 7.4-Repair of surface coating
Chapter 8-General design considerations 8.1-Design philosophy 8.2-Strengthening limits 8.3-Selection of FRP systems 8.4-Design material properties
9.1-General considerations 9.2-Nominal strength 9.3-Ductility 9.4-Serviceability 9.5-Creep-rupture and fatigue stress limits 9.6-Application to a singly reinforced rectangular section
10.1-General considerations 10.2-Wrapping schemes 10.3-Nominal shear strength 10.4-FRP system contribution to shear strength
11.1-Axial compression 11.2-Tensile strengthening 11.3-Ductility
12.1-Bond and delamination 12.2-Detailing of laps and splices
13.1-Engineering requirements 13.2-Drawings and specifications 13.3-Submittals
Chapter 14-Design examples 14.1-Calculation of FRP system tensile strength 14.2--Calculation of FRP system tensile strength 14.3--Flexural strengthening of an interior beam 14.4-Shear strengthening of an interior T-beam 14.5-Shear strengthening of an exterior column
15.1-Referenced standards and reports 15.2-Cited references 15.3-Other references
Appendix A-Material properties of carbon, glass, and aramid fibers
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