Design of Hydraulic Gates, 2nd Edition

 Content: Preface Acknowledgements 1 Introduction  1.1 History and development  1.2 Gate components  1.3 Main applications  1.4 Types and classifications  1.4.1 Purpose  1.4.2 Movement  1.4.3 Water passage  1.4.4 Gate leaf composition  1.4.5 Location  1.4.6 Skin plate shape  2 Types of gates  2.1 Flap gate  2.2 Cylinder gate  2.3 Stoplogs  2.4 Slide gate  2.5 Caterpillar gate  2.6 Miter gate  2.7 Roller gate  2.8 Segment gate  2.9 Sector gate  2.10 Stoney gate  2.11 Drum gate  2.12 Bear-trap gate  2.13 Fixed-wheel gate  2.14 Visor gate  3 Basis for selection of gate type  3.1 Introduction  3.2 Most common types  3.3 Operational requirements  3.4 Present limits of gate sizes and heads  4 Hydrostatics  4.1 Introduction  4.2 Vertical lift gates  4.2.1 Weir gates  4.2.2 Submerged gates  4.2.3 Spacing of horizontal beams  4.3 Radial gates  5 Structural design  5.1 Load cases  5.2 Allowable stresses  5.3 Skin plate  5.3.1 Thickness  5.3.2 Plate stresses  5.3.3 Effective width  5.4 Horizontal beams  5.4.1 Number of beams  5.4.2 Girder dimensions  5.4.2.1 Web thickness  5.4.2.2 Web depth  5.4.2.3 Flanges  5.4.3 Elastic stability  5.4.3.1 Compression flanges  5.4.3.2 Web stability  5.4.3.3 Stiffeners  5.4.4 Simple bending of beams  5.5 Segment gate  5.5.1 Skin plate  5.5.2 Gate framing  5.5.2.1 Girder arrangement  5.5.2.2 Horizontal beams  5.5.2.3 Vertical beams  5.5.3 Radial arms  5.5.3.1 Axial loads on the arms  5.5.3.2 Bearing loads  5.5.3.3 Buckling check  5.6 Silt pressure on gates  5.7 Gate seismic loads  6 Embedded parts, guides and supports  6.1 Slots and niches  6.2 Wheel track  6.2.1 Beam on an elastic foundation  6.2.2 Dimensioning by the Andree-Fricke theory  6.3 Slide tracks  6.4 Concrete bearing pressure  6.5 Lateral guidance  6.6 Wheels and pins  6.6.1 Design features  6.6.2 Contact pressure between wheel and track  6.6.3 Permissible contact stresses 1 6.6.4 Surface hardness  6.7 Gate hinges and bearings  6.7.1 Types of bearings  6.7.2 Cylindrical bushings  6.7.3 Spherical plain bearing  6.7.4 Roller bearings  7 Estimating gate weights  7.1 Introduction  7.2 Segment gates  7.3 Fixed-wheel gates  7.4 Double-leaf fixed-wheel gates  7.5 Stoplogs  7.6 Flap gates  7.7 Caterpillar gates  7.8 Embedded parts  8 Hydrodynamic forces  8.1 Introduction  8.2 Model tests  8.3 Factors influencing downpull  8.4 Formulae for the prediction of downpull  8.5 Method of Knapp  9 Gate operating forces  9.1 Introduction  9.2 Gate weight  9.3 Friction on supports and hinges  9.4 Seal deflection  9.5 Seal friction  10 Aeration  10.1 Introduction  10.2 Air vents - functions and features  10.3 Air vents - empirical calculation  10.4 Air-demand ratio  10.5 Air vent dimensioning  11 Gate hoists 11.1 Introduction  11.2 Screw lifts  11.3 Wire ropes  11.4 Roller chains  11.5 Oil hydraulic drives  11.6 Gate hoist arrangement  11.7 Hand operation  11.8 Design criteria  11.8.1 Load capacity  11.8.2 Operating speed  11.8.3 Safety factors  11.9 Gate position measurement  12 Materials  12.1 Introduction  12.2 Heat treatment  12.3 Rolled steels  12.4 Steels for machine elements  12.5 Stainless steels  12.6 Cast steels  12.7 Forged steels  12.8 Gray cast irons  12.9 Bronzes  12.10 Bolts  13 Gate seals  13.1 Introduction  13.2 Wood seals  13.3 Metallic seals  13.4 Rubber seals  13.5 Material for rubber seals  13.6 Clad seals  13.7 Rubber seal hardness  13.8 Rubber specifications  13.9 Seal leakage  13.10 Manufacture and assembly of seals  13.11 High-head segment gates - design considerations  13.12 Double-sealing gates  14 Manufacture, transportation and erection  14.1 Manufacture  14.1.1 Manufacturing steps  14.1.2 Full-size layout drawings  14.1.3 Storing of raw material  14.1.4 Marking  14.1.5 Cutting  14.1.6 Curving  14.1.7 Structure welding  14.1.8 Finishing  14.1.9 Pre-assembly  14.1.10 Machining  14.1.11 Mechanical fit-up  14.1.12 Anticorrosive protection  14.1.13 Inspection  14.1.14 Manufacturing tolerances  14.2 Transportation  14.3 Field erection  14.3.1 Erection instructions  14.3.2 Erection of embedded parts  14.3.3 Erection tolerances of embedded parts  14.3.4 Gate assembly  14.4 Acceptance tests  15 Trends and innovation in gate design  15.1 Long-span gates  15.2 High-head gates  15.3 Refurbishment and modernization of gates and dams  15.3.1 Heightening of existing gates  15.3.2 Installation of new gates on the top of the dam  16 Intake gates  16.1 Intake gates and accessories  16.2 Types of emergency gates  16.3 Gate hoists  16.3.1 Types of hoists  16.3.2 Hydraulic hoists  16.3.3 Cable hoists  16.3.4 Gantry cranes  16.4 Filling the penstock  16.5 Aeration  16.6 Guard gates for Kaplan turbines  16.7 Guard gates for bulb turbines  16.8 Draft tube stoplogs for bulb and Kaplan turbines  17 Intake trashracks  17.1 Introduction  17.2 Rack bar spacing  17.3 Design considerations  17.4 Flow velocity  17.5 Head loss  17.6 Flow-induced vibrations  17.7 Rack-cleaning machines  17.8 Safe design criteria for trashracks  Name index  Subject index
 Abstract:             ''Revised and expanded 2nd edition of this core book covering the principal aspects of the design, manufacture, installation and operation of hydraulic gates. Analyses in depth the selection of the gate type, the limits of their use, estimating their weight, operative forces, hoisting systems, design of structure and support elements, seals and hydrostatic and hydrodynamic forces. Inflatable gates and fusegates are also discussed, and new chapters on intake gates and intake trashracks have been added. Can be used both as a text-book and manual for the design of gates, and includes worked examples, drawings and many photographs to illustrate the concepts and methods involved''