TAILIEUCHUNG - Bridge Hydraulics

Bridge Hydraulics Jim Springer California Department of Transportation 61 Introduction Bridge Hydrology and Hydraulics Hydrology • Bridge Deck Drainage Design • Stage Hydraulics Ke Zhou California Department of Transportation Bridge Scour Bridge Scour Analysis • Bridge Scour Calculation • Bridge Scour Investigation and Prevention Introduction This chapter presents bridge engineers basic concepts, methods, and procedures used in bridge hydraulic analysis and design. It involves hydrology study, hydraulic analysis, on-site drainage design, and bridge scour evaluation. Hydrology study for bridge design mainly deals with the properties, distribution, and circulation of water on and above the land surface | Springer J. Zhou K. Bridge Hydraulics. Bridge Engineering Handbook. Ed. Wai-Fah Chen and Lian Duan Boca Raton CRC Press 2000 61 Bridge Hydraulics Jim Springer California Department of Transportation Ke Zhou California Department of Transportation Introduction Bridge Hydrology and Hydraulics Hydrology Bridge Deck Drainage Design Stage Hydraulics Bridge Scour Bridge Scour Analysis Bridge Scour Calculation Bridge Scour Investigation and Prevention Introduction This chapter presents bridge engineers basic concepts methods and procedures used in bridge hydraulic analysis and design. It involves hydrology study hydraulic analysis on-site drainage design and bridge scour evaluation. Hydrology study for bridge design mainly deals with the properties distribution and circulation of water on and above the land surface. The primary objective is to determine either the peak discharge or the flood hydrograph in some cases both at the highway stream crossings. Hydraulic analysis provides essential methods to determine runoff discharges water profiles and velocity distribution. The on-site drainage design part of this chapter is presented with the basic procedures and references for bridge engineers to design bridge drainage. Bridge scour is a big part of this chapter. Bridge engineers are systematically introduced to concepts of various scour types presented with procedures and methodology to calculate and evaluate bridge scour depths provided with guidelines to conduct bridge scour investigation and to design scour preventive measures. Bridge Hydrology and Hydraulics Hydrology Collection of Data Hydraulic data for the hydrology study may be obtained from the following sources as-built plans site investigations and field surveys bridge maintenance books hydraulic files from experienced report writers files of government agencies such as the . Corps of Engineers studies . Geological Survey USGS Soil Conservation Service and FEMA .

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