United States Department of Transportation
i
Using expert opinion to quantify accuracy and reliability of nondestructive evaluation on bridges.
-
2015-08-01
[PDF-3.43 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:Bridge inspection is an important phase in bridge management. In 2009, a joint American Society of Civil
Engineers Structural Engineering Institute and AASHTO Ad-Hoc group was created to identify the issues
in bridge safety and to study current bridge practices. This group recommended: “A more rational, risk-based approach to determining the appropriate inspection intervals for bridges is needed, as opposed to a
set twenty-four month cycle for all bridges.” The committee also recommended a wider use of NDE
methods. The difficulty in increasing the use of these NDE methods is the increased costs and time spent.
One way to deal with this is to implement risk-based planning. Although to do this, the accuracy,
reliability, bias, and cost of each test must be quantified. This study attempts to quantify these parameters
for common bridge NDE methods. This was done through two methods. First, a literature review was
performed to determine common NDE methods and data were found for these methods. Second, a Delphi
method survey was conducted to develop a broader range of data that matches real life practices. All of
the data were then analyzed and conclusions were drawn to quantify the various parameters for these
NDE methods.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
