Concrete Engineering Series 82
Recommendations for Design and Construction of High Performance Fiber
Reinforced Cement Composites with Multiple Fine Cracks (HPFRCC)
目次
Chapter 1 General
1.1 Scope
1.2 Terminology
1.3 Notation
Chapter 2 Design Basics
2.1 General
2.2 Design service life
2.3 Principles of performance verification
2.4 Safety factors
Chapter 3 Material Properties for Design
3.1 General
3.2 Strength and strain
3.2.1 Characteristic values
3.2.2 Tensile yield strength
3.2.3 Tensile strength
3.2.4 Ultimate tensile strain
3.2.5 Compressive strength
3.3 Stress-strain curves
3.3.1 Tensile stress-strain curve
3.3.2 Compressive stress-strain curve
3.4 Young’s modulus
3.5 Poisson’s ratio
3.6 Thermal characteristics
3.7 Shrinkage
3.8 Creep
3.9 Fatigue
3.10 Maximum crack width
Chapter 4 Loads
4.1 General
Chapter 5 Structural Analysis
5.1 General
5.2 Response value calculation for safety verification
5.3 Response value calculation for serviceability verification
Chapter 6 Safety Verification of Structures
6.1 General
6.2 Examination of safety against bending moment and axial forces
6.2.1 Design capacity of member cross section
6.2.2 Structural details
6.3 Examination of safety against shear forces
6.3.1 General
6.3.2 Design shear force for linear members
6.3.3 Design shear capacity of linear members
6.3.4 Examination of punching shear of planar members
6.3.5 Design member forces in planar members subjected to in-plane forces
6.3.6 Design capacity of planar members subjected to in-plane forces
6.3.7 Design shear transfer capacity
6.3.8 Structural details
6.4 Examination of safety against torsion
6.5 Examination of safety against fatigue
6.5.1 General
6.5.2 Verification of safety against fatigue
6.5.3 Design variable force and equivalent number of cycles
6.5.4 Stress calculation due to variable loads
6.5.5 Design shear fatigue capacity of members
6.6 Examination of safety against rigid body stability
Chapter 7 Serviceability Verification of Structures
7.1 General
7.2 Calculation of stress and strain
7.3 Stress limit value
7.4 Strain limit value
7.5 Examination of tensile strain
7.6 Examination of cracking
7.6.1 General
7.6.2 Permissible crack width
7.6.3 Classification of environmental conditions
7.6.4 Examination of bending cracks
7.6.5 Examination of shear cracks
7.6.6 Examination of torsional cracks
7.6.7 Structural details
7.7 Examination of deflection and displacement
7.8 Examination of vibration
Chapter 8 General Structural Details
8.1 General
8.2 Concrete cover
8.3 Spacing of steel bars
8.4 Development of steel bars
8.4.1 General
8.4.2 Development performance
8.4.3 Critical sections to check development of reinforcement
8.4.4 Development length for reinforcement
8.4.5 Basic development length
8.5 Splices in reinforcement
8.5.1 General
8.5.2 Lap splices
8.5.3 Performance of splices
8.6 Construction joint
Chapter 9 Verification for Resistance to Environmental Actions
9.1 General
9.2 Verification of steel corrosion due to carbonation
9.3 Verification of chloride induced steel corrosion
9.4 Verification of freezing and thawing damages
9.5 Verification of water-tightness
9.6 Verification of resistance to chemical attacks
9.7 Verification of alkali-aggregate reactions
9.8 Verification of fire resistance
Chapter 10 Concreting Work
10.1 General
10.2 Materials
10.2.1 Materials in general
10.2.2 Materials for matrix
10.2.3 Water
10.2.4 Reinforcing fibers
10.2.5 Admixtures
10.3 Mix proportions
10.3.1 General
10.3.2 Workability
10.3.3 Verification of strength and strain
10.3.4 Representation of mix proportion
10.4 Manufacture
10.4.1 Storage
10.4.2 Batching
10.4.3 Mixing
10.5 Transportation
10.6 Placement
10.7 Finishing
10.8 Curing
10.9 Formwork and shoring
10.10 Cold weather concreting
10.10.1 General
10.10.2 Materials and mix proportions
10.10.3 Transportation and placement
10.10.4 Curing
10.11 Hot weather concreting
10.11.1 General
10.11.2 Materials and mix proportions
10.11.3 Transportation and placement
10.11.4 Curing
10.12 Inspection
10.12.1 General
10.12.2 Inspection for acceptance of constituent materials of HPFRCC
10.12.3 Inspection of production
10.12.4 Inspection for acceptance of HPFRCC
10.12.5 Inspection for acceptance of reinforcement
10.12.6 Inspection of construction
10.12.7 Inspection of structures
Chapter 11 Shotcrete
11.1 General
11.2 Materials
11.2.1 Materials in general
11.2.2 Materials for matrix
11.2.3 Water
11.2.4 Reinforcing fiber
11.2.5 Admixtures
11.2.6 Anchoring
11.3 Mix proportions
11.3.1 General
11.3.2 Workability
11.3.3 Verification of strength and strain
11.3.4 Representation of mix proportions
11.4 Manufacturing
11.4.1 Storage
11.4.2 Batching
11.4.3 Mixing
11.5 Preparation of concrete surface
11.6 Transportation
11.7 Spraying
11.8 Finishing
11.9 Curing
11.10 Inspection
11.10.1 General
11.10.2 Inspection for acceptance of constituent materials of HPFRCC
11.10.3 Inspection of construction equipment
11.10.4 Inspection during manufacturing
11.10.5 Inspection of shotcrete placement
11.10.6 Inspection of reinforcement assembly
11.10.7 Inspection of sprayed HPFRCC
11.10.8 Inspection of structures after installation of HPFRCC
Testing and Evaluation Methods
Testing method 1. Preparation of specimen for strength tests
Testing method 2. Testing method of uniaxial tensile strength
Testing method 3. Testing method of crack width of HPFRCC -Average and maximum crack widths
Testing method 4. Testing method of crack width of HPFRCC -Variation of crack width
Appendix
I Material properties for design
I-1 Characteristic values of HPFRCC products
II Examination of material properties
II-1 Evaluation of width of cracks in HPFRCC
II-2 Carbonation resistance of HPFRCC
II-3 Chloride ion penetrability to HPFRCC
II-4 Steel corrosion of cracked regions of HPFRCC
II-5 Freeze-thaw resistance of HPFRCC
II-6 Fire resistance of HPFRCC
II-7 Long-term durability of reinforcing fibers used in HPFRCC
II-8 Tensile performance and size effect of HPFRCC 62
II-9 Examination examples of tensile creep characteristics of HPFRCC
III-1 Fatigue durability of HPFRCC
III-2 Examination of cover in HPFRCC structures