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ACI 544.7R 16:2016 Edition

ACI 544.7R 16:2016 Edition

$46.85

544.7R-16 Report on Design and Construction of Fiber-Reinforced Precast Concrete Tunnel Segments

Published By Publication Date Number of Pages
ACI 2016 40
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Fiber reinforcement has emerged as an alternative to traditional reinforcing bars and welded wire mesh reinforcement for precast concrete tunnel segments. Due to significantly improved post-cracking behavior and crack control characteristics, fiber-reinforced concrete (FRC) segments offer advantages over traditionally reinforced concrete segments such as saving cost and reducing production time while developing a more robust product with improved handling and long-term durability. Specific guidance on the design of fiber-reinforced precast concrete tunnel segments is needed for this emerging technology. This document offers general information on the history of FRC precast segments from tunneling projects throughout the world; a procedure for structural analysis and design based on governing load cases; and a description of the material parameters, tests, and analyses required to complete the design. The proposed guidelines are based on the knowledge gained from experimental research, analytical work, and the experience gained on numerous FRC precast tunnel projects. Keywords: crack widths; earth pressure; fibers; fiber-reinforced concrete; grout pressure; hydrostatic pressure; lining; precast segment; stripping; surcharge load; thrust jack forces; tunnel.

PDF Catalog

PDF Pages PDF Title
4 CHAPTER 1—INTRODUCTION AND SCOPE
CHAPTER 1—INTRODUCTION AND SCOPE
1.1—Introduction
1.1—Introduction
5 1.2—Scope and limitations
1.2—Scope and limitations
1.3—Applications and uses in existing tunnels
1.3—Applications and uses in existing tunnels
CHAPTER 2—NOTATION AND DEFINITIONS
CHAPTER 2—NOTATION AND DEFINITIONS
2.1—Notation
2.1—Notation
8 2.2—Definitions
2.2—Definitions
CHAPTER 3—DESIGN PHILOSOPHY
CHAPTER 3—DESIGN PHILOSOPHY
3.1—Fiber-reinforced concrete design codes, standards, and recommendations
3.1—Fiber-reinforced concrete design codes, standards, and recommendations
9 3.2—Governing load cases and load factors
3.2—Governing load cases and load factors
3.3—Design approach
3.3—Design approach
10 CHAPTER 4—DESIGN FOR PRODUCTION AND TRANSIENT STAGES
CHAPTER 4—DESIGN FOR PRODUCTION AND TRANSIENT STAGES
4.1—Load Case 1: Segment stripping
4.1—Load Case 1: Segment stripping
11 4.2—Load Case 2: Segment storage
4.2—Load Case 2: Segment storage
12 4.3—Load Case 3: Segment transportation
4.3—Load Case 3: Segment transportation
4.4—Load Case 4: Segment handling
4.4—Load Case 4: Segment handling
13 CHAPTER 5—DESIGN FOR CONSTRUCTION STAGES
CHAPTER 5—DESIGN FOR CONSTRUCTION STAGES
5.1—Load Case 5: Tunnel-boring machine thrust jack forces
5.1—Load Case 5: Tunnel-boring machine thrust jack forces
16 5.2—Load Case 6: Tail skin back-grouting pressure
5.2—Load Case 6: Tail skin back-grouting pressure
19 5.3—Load Case 7: Localized back grouting (secondary grouting) pressure
5.3—Load Case 7: Localized back grouting (secondary grouting) pressure
20 CHAPTER 6—DESIGN FOR SERVICE STAGES
CHAPTER 6—DESIGN FOR SERVICE STAGES
6.1—Load Case 8: Earth pressure, groundwater, and surcharge loads
6.1—Load Case 8: Earth pressure, groundwater, and surcharge loads
23 6.2—Load Case 9: Longitudinal joint bursting load
6.2—Load Case 9: Longitudinal joint bursting load
24 6.3—Load Case 10: Loads induced due to additional distortion
6.3—Load Case 10: Loads induced due to additional distortion
25 6.4—Load Case 11: Other loads
6.4—Load Case 11: Other loads
CHAPTER 7—MATERIAL PARAMETERS FOR DESIGN
CHAPTER 7—MATERIAL PARAMETERS FOR DESIGN
CHAPTER 8—TESTS AND PERFORMANCE EVALUATION
CHAPTER 8—TESTS AND PERFORMANCE EVALUATION
8.1—Material parameters, tests, and analyses
8.1—Material parameters, tests, and analyses
26 8.2—Full-scale tests
8.2—Full-scale tests
27 CHAPTER 9—HYBRID REINFORCEMENT FOR TUNNEL LININGS
CHAPTER 9—HYBRID REINFORCEMENT FOR TUNNEL LININGS
29 CHAPTER 10—DESIGN EXAMPLES
CHAPTER 10—DESIGN EXAMPLES
10.1—Monte Lirio tunnel in Panama
10.1—Monte Lirio tunnel in Panama
Design summary
Design summary
31 10.2—Barcelona Metro Line 9
10.2—Barcelona Metro Line 9
32 CHAPTER 11—REFERENCES
CHAPTER 11—REFERENCES
Authored documents
Authored documents
35 APPENDIX A—CALCULATION OF AXIAL FORCE-BENDING MOMENT INTERACTION DIAGRAM
APPENDIX A—CALCULATION OF AXIAL FORCE-BENDING MOMENT INTERACTION DIAGRAM

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