|
Accession Number
|
PB2012-114862
|
|
Title
|
Evaluation of Bridge Scour Research: Pier Scour Processes and Predictions.
|
|
Publication Date
|
Mar 2011
|
|
Media Count
|
195p
|
|
Personal Author
|
B. Melville G. Constantinescu R. Ettema
|
|
Abstract
|
This report evaluates the current state of knowledge regarding bridge-pier scour, assesses leading methods for reliable design estimates of scour depth, proposes a structured methodology for scour-depth estimation for design purposes, and indicates pier-scour aspects in need of further research. It focuses particularly on research information obtained since 1990, showing that this information provides considerable new insights that compel the need to change the design method currently recommended by the principal authoritative design guides (notably FHWAs HEC-181, and AASHTO2) and used widely by bridge-engineering practitioners. Additionally, it indicates that several important aspects of pier scour processes remain inadequately understood and not yet incorporated into design methods.
|
|
Keywords
|
Bridge-pier scour
Bridges
Design estimates
Design purposes
Scour depth
|
|
|
Source Agency
|
National Academy of Science Transportation Research Board
|
|
NTIS Subject Category
|
50A - Highway Engineering
85H - Road Transportation
|
|
Corporate Author
|
Wyoming Univ., Laramie.
|
|
Document Type
|
Technical report
|
|
Title Note
|
N/A
|
|
NTIS Issue Number
|
1226
|
|
Contract Number
|
NCHRP 24-27(01)
|
