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EM 1110-2-2702 1 Jan 00 Chapter 5 Gate Anchorage Systems General Description...................................................................................................5-1 5-1 Components...............................................................................................................5-2 5-1 Material Selection .....................................................................................................5-3 5-5 Design Requirements ................................................................................................5-4 5-5 Analysis and Design Considerations ........................................................................5-5 5-6 Serviceability.............................................................................................................5-6 5-10 Design Details ...........................................................................................................5-7 5-11 Chapter 6 Trunnion Girder General Description...................................................................................................6-1 6-1 Components...............................................................................................................6-2 6-1 Material Selection .....................................................................................................6-3 6-1 Design Requirements ................................................................................................6-4 6-3 Analysis and Design Considerations.........................................................................6-5 6-4 Serviceability Requirements .....................................................................................6-6 6-6 Design Details ...........................................................................................................6-7 6-7 Fracture Control ........................................................................................................6-8 6-7 Chapter 7 Operating Equipment Introduction ...............................................................................................................7-1 7-1 Machinery Description..............................................................................................7-2 7-1 Machinery and Gate Loads .......................................................................................7-3 7-2 Machinery Selection..................................................................................................7-4 7-4 Chapter 8 Corrosion Control General Considerations .............................................................................................8-1 8-1 Material Selection and Coating Systems...................................................................8-2 8-1 Cathodic Protection...................................................................................................8-3 8-1 Design Details ...........................................................................................................8-4 8-2 Appendix A References Appendix B Design and Specification Considerations for Fabrication and Erection General Considerations ............................................................................................ B-1 B-1 Shop Fabrication ...................................................................................................... B-2 B-2 Field Fabrication and Erection ................................................................................. B-3 B-6 Appendix C Operation and Maintenance Considerations General ..................................................................................................................... C-1 C-1 Design Considerations.............................................................................................. C-2 C-1 Inspection ................................................................................................................. C-3 C-3 Appendix D Data for Existing Tainter Gates ii
Chapter 1 Introduction 1-1. Purpose EM 1110-2-2702 1 Jan 00 This manual provides guidance for the design, fabrication, and inspection of spillway tainter gates, trunnion girder, and trunnion girder anchorage for navigation and flood control projects. Load and resistance factor design (LRFD) criteria are specified for design of steel components. Allowable stress design (ASD) criteria are provided in EM 1110-2-2105 and may be used only with prior approval of CECW-ET. Orthotropic shell, vertical framed, and stress skin-type tainter gates may be suitable in some locations but are not covered in this manual. Other types of control gates, including radial lock valves (reverse tainter valves) and sluice gates, may be referred to as tainter gates but also are not included in this manual. 1-2. Applicability This manual applies to USACE commands having responsibility for Civil Works projects. 1-3. References References are provided in Appendix A. 1-4. Distribution This publication is approved for public release; distribution is unlimited. 1-5. Background a. The previous version of this document was published in 1966, and since that time, design and fabrication standards have improved. Load and resistance factor design has been adapted by many specification writing organizations including American Institute of Steel Construction (AISC) (1994) and American Association of State Highway and Transportation Officials (AASHTO) (1994). In addition to the development and adoption of LRFD criteria, general knowledge on detailing and fabrication to improve fracture resistance of structures has advanced greatly. Most of the research and development behind current fatigue and fracture provisions of AISC, American Welding Society (AWS), and AASHTO were accomplished during the 1970's. EM 1110-2-2105 has been revised recently (1993) to include new LRFD and fracture control guidance for hydraulic steel structures. b. Additionally, knowledge has expanded due to operational experience resulting in improved design considerations. During the late 1960s and early 1970s, many tainter gates on the Arkansas River exhibited vibration that led to fatigue failure of rib-to-girder welded connections. Study of these failures resulted in development of improved tainter gate lip and bottom seal details that minimize vibration. Tainter gates at various projects have exhibited operational problems and failures attributed to effects of trunnion friction not accounted for in original design. As a result of related studies, information regarding friction magnitude and structural detailing to withstand friction forces has been gained. Traditionally, tainter gates have been operated by lifting with wire rope or chains attached to a hoist located above the gate. More recently, hydraulic cylinders are being used to operate tainter gates due to economy, reduced maintenance, and advantages concerning operating multiple gates. 1-1
Page 1 and 2: US Army Corps of Engineers ENGINEER
Page 3: DEPARTMENT OF THE ARMY EM 1110-2-27
Page 7 and 8: Chapter 2 Applications 2-1. General
Page 9 and 10: Figure 2-3. Downstream view of a ty
Page 11 and 12: 2-5 Figure 2-4. Typical navigation
Page 13 and 14: Chapter 3 Tainter Gate Design 3-1.
Page 15 and 16: Figure 3-2. Horizontal girder later
Page 17 and 18: EM 1110-2-2702 1 Jan 00 bracing mem
Page 19 and 20: Figure 3-5. Trunnion tie EM 1110-2-
Page 21 and 22: Figure 3-7. Hydraulically operated
Page 23 and 24: EM 1110-2-2702 1 Jan 00 (5) Operati
Page 25 and 26: 3-3. Material Selection EM 1110-2-2
Page 27 and 28: EM 1110-2-2702 1 Jan 00 cylinder ex
Page 29 and 30: S = 3EI d 3 G w = unit weight of wa
Page 31 and 32: EM 1110-2-2702 1 Jan 00 I. The I lo
Page 33 and 34: EM 1110-2-2702 1 Jan 00 considered;
Page 35 and 36: Figure 3-10. Skin plate 2-D design
Page 37 and 38: Figure 3-12. Girder model loads and
Page 39 and 40: Figure 3-13. End frame 2-D model (C
Page 41 and 42: EM 1110-2-2702 1 Jan 00 rope hoists
Page 43 and 44: Figure 3-14. Downstream vertical tr
Page 45 and 46: EM 1110-2-2702 1 Jan 00 (1) Design
Page 47 and 48: EM 1110-2-2702 1 Jan 00 (a) Paralle
Page 49 and 50: EM 1110-2-2702 1 Jan 00 (5) Debris.
Page 51 and 52: Figure 3-17. Wire rope connection b
Page 53 and 54: EM 1110-2-2702 1 Jan 00 d. Gate sto
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Figure 3-20. Typical gate bumper as
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EM 1110-2-2702 1 Jan 00 for a more
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EM 1110-2-2702 1 Jan 00 Figure 4-3.
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EM 1110-2-2702 1 Jan 00 Figure 4-5.
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EM 1110-2-2702 1 Jan 00 d. Yoke. Th
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EM 1110-2-2702 1 Jan 00 Tolerance r
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Chapter 5 Gate Anchorage Systems 5-
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5-3 Figure 5-2. Typical posttension
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EM 1110-2-2702 1 Jan 00 duct system
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5-7 Figure 5-4. Analytical model to
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5-9 Figure 5-5. Analytical model to
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Figure 5-7. Trunnion girder movemen
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Chapter 6 Trunnion Girder 6-1. Gene
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EM 1110-2-2702 1 Jan 00 d. Steel gi
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EM 1110-2-2702 1 Jan 00 gate reacti
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EM 1110-2-2702 1 Jan 00 Alternative
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Chapter 7 Operating Equipment 7-1.
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Figure 7-1. Definition of at rest d
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Chapter 8 Corrosion Control 8-1. Ge
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