Traffic Loading 'Fingerprinting' of Bridges of Assessment Purposes

Files in This Item:
File Description SizeFormat 
j6.pdf8.76 MBAdobe PDFDownload
Title: Traffic Loading 'Fingerprinting' of Bridges of Assessment Purposes
Authors: O'Brien, Eugene J.
Sloan, T. D.
Butler, K. M.
Kirkpatrick, J.
Permanent link: http://hdl.handle.net/10197/4056
Date: 1995
Abstract: The paper describes a field trial of the use of a simple statistical ‘extrapolation' technique for the determination of design load effects in existing bridges. Deflections were measured directly using lasers in the Foyle Bridge, and data were recorded for 155 daily 48-min samples. As only traffic load effects were of interest, wind-induced defections were removed by Fast Fourier transform analysis and temperature-induced deflections were removed through identification of traffic-free periods. A simple linear regression analysis using probability paper has been employed to determine the parameters which characterise the statistical distribution. The cumulative distribution function was then used to estimate the level of deflection with a 1000-year return period. Empirically derived formulas have been utilised to determine the variability in the 1000-year estimates and to calculate a design deflection which allows for this.
Type of material: Journal Article
Publisher: Institution of Structural Engineers
Copyright (published version): 1995, The Institution of Structural Engineers
Keywords: Bridge assessment;Bridge loads
Language: en
Status of Item: Peer reviewed
Appears in Collections:Civil Engineering Research Collection

Show full item record

Page view(s) 50

83
checked on May 25, 2018

Download(s) 50

151
checked on May 25, 2018

Google ScholarTM

Check


This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.