Hydraulics and Hydraulic Structures

Design of Hydraulic Steel Structures

U.S. Army Corps of Engineers
ETL 1110-2-584
30 June 2014

We also have the older document, Design of Hydraulic Steel Structures (EM 1110-2-2105, 31 March 1993) available for download.

This manual prescribes guidance for (a) designing hydraulic steel structures (HSS) by load and resistance factor design (LRFD) and (b) fracture control. Allowable stress
design (ASD) guidance is provided as an alternative design procedure or for those structure types where LRFD criteria have yet to be developed.

Earthquake Design and Evaluation of Concrete Hydraulic Structures

U.S. Army Corps of Engineers
EM 1110-2-6053
1 May 2007

This manual provides guidance for performance-based design and evaluation of concrete hydraulic structures (CHS). It introduces procedures that show how to design or evaluate a hydraulic structure to have a predictable performance for specified levels of seismic hazard. Traditional design and evaluation procedures may still be used for feasibility and screening purposes. However, for critical facilities, they should be followed by the procedures of this manual to prevent sudden collapse even though the structure may suffer severe damage, to limit damage to a repairable level, or to maintain functionality immediately after the earthquake.

Hydraulic Design of Flood Control Channels

U.S. Army Corps of Engineers
EM 1110-2-1601
1 July 1991/30 June 1994

This manual presents procedures for the design analysis and criteria of design for improved channels that carry rapid and/or tranquil flows.

Procedures are presented without details of the theory of the hydraulics involved since these details can be found in any of various hydraulic textbooks and publications available to the design engineer. Theories and procedures in design, such as flow in curved channels, flow at bridge piers, flow at confluences, and side drainage inlet structures, that are not covered fully in textbooks are discussed in detail with the aid of Hydraulic Design Criteria (HDC) charts published by the US Army Engineer Waterways Experiment Station (USAEWES). The charts and other illustrations are included in Appendix B to aid the designer. References to HDC are by HDC chart number. The use of models to develop and verify design details is discussed briefly. Typical calculations are presented to illustrate the principles of design for channels under various conditions of flow. Electronic computer programming techniques are not treated in this manual. However, most of the basic hydraulics presented herein can be adapted for computer use as illustrated in Appendix D.

Hydraulic Design of Navigation Dams

U.S. Army Corps of Engineers
EM 1110-2-1605
12 May 1987

This manual provides guidance in designing, constructing, and operating navigation dams. Some of the factors affecting the safety and efficiency of waterways that are discussed include: types of dams; environmental considerations; equipment in general use on navigation dams; options of design to accommodate ice/debris passage, emergency operation; normal operation to pass flood flows, removal of sediment, or assistance in hydropower development. Some information is also provided on the repair and rehabilitation of existing structures.

Hydraulic Design of Spillways

U.S. Army Corps of Engineers
EM 1110-2-1603
16 January 1990 (original)/31 August 1992 (errata #1)

This manual presents guidance for the hydraulic design of spillways for flood control or multipurpose dams. Procedures recommended are considered appropriate for structures suitable to most of the field conditions encountered in Corps of Engineer projects. Basic theory is presented as required to clarify presentation and where the state of the art is limited in textbooks. Both laboratory and prototype experimental test results have been correlated with current theory in the design guidance where possible.

Planning and Design of Hydroelectric Power Plant Structures

U.S. Army Corps of Engineers
EM 1110-2-3001
30 April 1995

This manual presents a discussion of the general, architectural and structural considerations applicable to the design of hydroelectric power plant structures. It is intended for the guidance of those elements within the Corps of Engineers responsible for the planning and design of such structures. It should also be used in establishing minimum criteria for the addition of hydropower facilities at existing Corps of Engineers projects, whether by Corps of Engineers or a non-Federal developer.

Response Spectra and Seismic Analysis for Concrete Hydraulic Structures

U.S. Army Corps of Engineers
EM 1110-2-6050
30 June 1999

This manual describes the development and use of response spectra for the seismic analysis of concrete hydraulic structures. The manual provides guidance regarding how earthquake ground motions are characterized as design response spectra and how they are then used in the process of seismic structural analysis and design. The manual is intended to be an introduction to the seismic analysis of concrete hydraulic structures. More detailed seismic guidance on specific types of hydraulic structures will be covered in engineer manuals and technical letters on those structures.

Chapter 1 provides an overview of the seismic assessment process for hydraulic structures and the responsibilities of the project team involved in the process, and also briefly summarizes the methodologies that are presented in Chapters 2 and 3. In Chapter 2, methodology for seismic analysis of hydraulic structures is discussed, including general concepts, design criteria, structural modeling, and analysis and interpretation of results. Chapter 3 describes methodology for developing the earthquake ground motion inputs for the seismic analysis of hydraulic structures. Emphasis is on developing response spectra of ground motions, but less detailed guidance is also provided for developing acceleration time-histories.

Structural Design and Evaluation of Outlet Works

U.S. Army Corps of Engineers
EM 1110-2-2400
2 June 2003

This manual provides guidance for the planning and structural design and analysis of intake structures and other outlet works features used on U.S. Army Corps of Engineers projects for the purpose of flood control, water supply, water quality and temperature control, recreation, or hydropower.

This manual presents guidance for the planning and design of outlet works structures, with special emphasis on intake towers. Other outlet works structures covered include tunnels, cut-and-cover conduits, access bridges, gate structures, and approach and discharge channel structures. Appurtenant features covered include trashracks, gates, valves, and mechanical and electrical operating equipment. Chapter 2 presents general planning and design information; Chapters 3 and 4 provide structural and seismic design guidance; Chapter 5 describes trashracks, bulkheads, gates, valves, and operating equipment; and Chapter 6 covers access bridge design requirements and describes special detailing considerations. Appendices B through E cover the seismic design and evaluation of intake towers.

Waterstops and Other Preformed Joint Materials for Civil Works Structures

US Army Corps of Engineers
EM 1110-2-2102
30 September 1995

This manual provides guidance on effective and economical selection, evaluation, and use of waterstops, preformed compression seals, and other preformed joint materials in the construction of concrete structures. It provides information on types of waterstops and other preformed joint materials used in hydraulic and non-hydraulic concrete structures, including locks, dams, floodwalls, storage tanks, pavements, buildings, bridge decks, and other concrete structures.

Concrete is normally subject to changes in length, shape, or volume caused by changes in temperature, moisture content, reactions with atmospheric carbon dioxide, or by the application of loads. One method of controlling and minimizing the effect of these changes or movements is to provide joints at which the movement can be accommodated without loss of integrity of the structure. There are many other reasons for providing joints in concrete structures such as at doors, windows, cladding, mechanical breaks, or to simplify construction. These joints must usually be sealed to prevent passage of excessive amounts of gases, liquids, or other unwanted substances into and or through the joint openings. Some preformed joint materials not only prevent the passage of undesirable substances but also prevent the entry of hardened particles into the joint that may eventually cause the concrete to crack or chip along the edge of the joint.

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