Manual de postensado de puentes

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Post-Tensioning Tendon Installation and Grouting Manual

May 26, 2004

FEDERAL HIGHWAY ADMINISTRATION POST-TENSIONING TENDON INSTALLATION AND GROUTING MANUAL

5/26/2004

Federal Highway Administration Post- Tensioning Tendon Installation and Grouting Manual Preface

This Manual includes state-of-the-art information relative to materials, post-tensioning systems, construction practicesand grouting of post-tensioning tendons for bridges. The Manual is targeted at Federal, State and local transportation department and private company personnel that may be involved in the design, inspection, construction or maintenance of bridges that contain post-tensioning tendons. This Manual will serve as a reference and guide to designers, inspectors and construction personnel forpost-tensioning materials, installation and grouting of bridge tendons. The document is part of the Federal Highway Administration’s national technology deployment program and may serve as a training manual.

Preface

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FEDERAL HIGHWAY ADMINISTRATION POST-TENSIONING TENDON INSTALLATION AND GROUTING MANUAL

5/26/2004

Federal Highway Administration Post-Tensioning Tendon Installation andGrouting Manual Overall Contents

Overall Contents List of Figures and Tables Chapter 1 Chapter 2 Chapter 3 Chapter 4 Appendix A Appendix B Appendix C Appendix D Appendix E Introduction Post-Tensioning System Materials and Components Post-Tensioning Duct and Tendon Installation Grouting of Post-Tensioning Tendons Terminology Personnel Qualifications Further Examples of Post-Tensioning TendonApplications Corrosion Protection of Post-Tensioning Tendons Bibliography

Metric Conversion Factors

Overall Contents

1 of 1

FEDERAL HIGHWAY ADMINISTRATION POST-TENSIONING TENDON INSTALLATION AND GROUTING MANUAL

5/26/2004

Federal Highway Administration Post-Tensioning Tendon Installation and Grouting Manual List of Figures and Tables
Chapter 1 Figure 1.1 Figure 1.2 Figure 1.3 Figure1.4 Figure 1.5 Figure 1.6 Figure 1.7 Figure 1.8 Figure 1.9 Figure 1.10 Figure 1.11 Figure 1.12 Figure 1.13 Figure 1.14 Figure 1.15 Figure 1.16 Figure 1.17 Figure 1.18 Figure 1.19 Figure 1.20 Figure 1.21 Figure 1.22 Chapter 2 Figure 2.1 Figure 2.2 Figure 2.3 Figure 2.4 Figure 2.5 Figure 2.6 Figure 2.7 Figure 2.8 Figure 2.9 Table 2.1 Table 2.2 Chapter 3 Figure 3.1 Figure 3.2 Figure 3.3 Figure 3.4Figure 3.5 Figure 3.6

Reinforced concrete beam under load Comparison of Reinforced and Prestressed Concrete Beams Typical Post-Tensioning Anchorage Hardware for Strand Tendons Typical Post-Tensioning Bar System Hardware Typical Post-Tensioning Bar System Hardware Cast-In-Place Post-Tensioned Construction in California Spliced Haunched I-Girder of Main Span Unit Erection Sequence and TemporarySupports for Spliced I-Girder Cast-In-Place Segmental Construction using Form Travelers Foothills Parkway, Tennessee Precast Segmental Balanced Cantilever Construction Typical Balanced Cantilever Segment Bottom Continuity Tendons for Balanced Cantilever Construction Span-By-Span Construction Interior Span Post-Tensioning for Span-By-Span Construction Post-Tensioning in Hammerhead Piers Post-Tensioningin Straddle Bents Post-Tensioning in Cantilever Piers Precast Hollow Segmental Piers, Linn Cove Viaduct, North Carolina Precast I-Piers Natchez Trace Parkway Arches, Tennessee Temporary PT Bars for Segment Erection Standard and Modified ASTM C939 Flow Cone Test Wick Induced Bleed Test Bleed Under Pressure Test (Gelman Filtration Funnel) Spiral Wound Steel Duct and Rigid Steel Pipe CorrugatedPlastic Duct Basic Anchor Plate Multi-plane Anchor PT-Bar Anchor Plate Permanent (Plastic) Grout Cap to Anchor Permissible Bleed Under Pressure Physical Properties Required for Shrink Sleeves Typical Shop Drawing Approval Process for Post-Tensioning Tendon Profile in Four-Span I-Girder Calculated Tendon Force after Losses External Deviated Tendon in End Span External Tendon Force after Friction and...
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