Condition Based Bridge Maintenance — Activities that are performed on bridge elements as needed and identified through the bridge inspection process to restore the structural integrity and correct major safety defects.
VTrans Structures Design Hydraulics structure. They used lead widely in plumbing systems for domestic and public supply, such as feeding thermae. Also known as a caisson. Ordinary High Water OHW — The line on the shore established by the fluctuations of water and indicated by physical characteristics such as a clear, natural line impressed on the bank, shelving, changes in the character of soil, Hydraulics structure of terrestrial vegetation, the presence of litter and debris, or other appropriate means that consider the characteristics of the surrounding area.
The existing bridge is then removed and the new bridge slid into place. Phased Construction — Construction practice in which portions of a bridge, culvert, or roadway are Hydraulics structure in multiple phases in order to maintain traffic through the project site during construction.
Live load does not include seismic or wind loading. Permit Trucks — Large trucks that require special permits in order to traverse across a state owned bridge or roadway network.
Each roadway is given a functional classified based on ownership and traffic usage, which also corresponds to a design event that is based on the probability of annual occurrence. Intentional joints help prevent cracking of pavement and concrete, as well as reduce significant stresses on a bridge from effects caused from movement due to temperature change, vibration, and seismic activity.
Pile — A vertical structural element of a deep foundation that is driven or placed in a pre-drilled hole into the ground to support a structure or foundation.
Bankfull width BFW in its general form is the most active portion of the channel.
Erosion — The action of surface processes such as water flow or wind that remove soil, rock, or dissolved material from one location, then transport it away to another location.
Approach Railing — Section of guardrail used to transition from or to bridge railing. The alluvial gold-mine of Las Medulas was one of the largest of their mines. Lateral Slide — A bridge construction technique that allows a bridge to be built alongside an existing structure, while maintaining traffic on the existing bridge.
Stopping Sight Distance — The distance that allows a driver traveling at the maximum speed to stop before hitting an object.
With respect to a highway, this location may either be a culvert, the farthest point of a channel, or an inlet to a roadway drainage system. This elevation is used to determine the hydraulic capacity of a bridge opening and whether sufficient clearance from the waterway will be provided in storm events.
A hydraulic structure is a structure submerged or partially submerged in any body of water, which disrupts the natural flow of water. Typically used as a finish surface for roadway networks, parking lots, and drive ways. Prefabricated Bridge Elements and Systems PBES — Structural components and systems of a bridge superstructure or substructure that are prefabricated off site in a controlled environment.
Splice — To join two similar materials such as piles, reinforcing steel, or girders together at the ends. Stone Fill — Rocks used to protect a channel, ditch, slope, or structural component from erosion. Construction Load — Dead and live load effects from construction materials, equipment, vehicles, and personnel.
This introduction of internal stresses is usually accomplished through the use of tendons that are tensioned or pulled tight prior to being anchored to the concrete. Sediment supports pier and abutment foundations and is essential to the stability of bridges.
Typically used to accelerate the bridge construction process. What is bankfull width and why is this an important design parameter for sizing structures? Bridge elements or component conditions are not always directly improved as a result of these activities, but the deterioration is expected to be delayed.
Bridge Bearing — Device placed under a bridge superstructure that allows controlled movement of a bridge due to effects such as temperature change, vibration, and seismic activity.
Often times there is a bridge bearing that is placed between the surface of the bridge seat and the bottom surface of the superstructure.
With the hydrology completed, the engineer can then utilize design tools to recommend resilient infrastructure that is cost-effective, constructible based on site constraints, and provides the conditions necessary for stream equilibrium and organism passage.
Swale —A natural ditch or long, shallow depression through which accumulated water from adjacent watersheds drain to lower areas.
Horizontal Alignment — The aspect of a roadway network pertaining to the horizontal plane, which consists of a series of tangents straight sections and curves.
Can be made of timber, steel, or concrete. This phenomenon occurs when moving water erodes material from around a bridge pier or abutment, surrounding banks or streambed. They can be used to divert, disrupt or completely stop the flow.
It includes earthwork, trenching, wall shafts, tunneling and underground.structure span, a 12 in sump will be required for the proposed structure. For constructability, the structure will be constructed level and the change in flowline elevation will be accounted for with a varying sump depth (i.e.
the sump depth will be greater. Module Structure Hydraulics. Module Description. Objectives.
Upon completion of this module, the participant will be able to: • Describe the two key hydraulic parameters that affect the selection of the most economical. Structures and Hydraulics Website- Glossary Abutment – A solid structure, usually a retaining wall or pier that also supports a vertical load, such as an arch or bridge.
Accelerated Bridge Construction (ABC) – Approach to bridge construction that provides an accelerated construction time frame utilizing short term road closures and. A hydraulic structure is a structure submerged or partially submerged in any body of water, which disrupts the natural flow of water.
They can be used to divert, disrupt or completely stop the flow. An example of a hydraulic structure would be. Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids.
At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases.
Hydraulics in Civil and Environmental Engineering 4th edition A New text on small hydraulic power development and tidal and wave power. of wave breaking, wave statistics and pipeline stability.
Chapter Enhanced treatment of beach proﬁle and wave/structure interaction and a new section on coastal modelling. Chapter .Download