Calculating an Influence Line from Direct Measurements

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Author(s)
Uri
Date Issued
March 2006
Date Available
16T16:31:41Z January 2013
Abstract
The response of a bridge to a pre-weighed truck can be measured on site. This paper describes a mathematical method for converting the measured response of a load effect into an influence line for that effect. One influence ordinate is calculated for each scan of the data acquisition system. The vector of ordinates is found by solving a large set of simultaneous equations expressed in matrix form. The general form of the matrices is described, and the particular matrices for a three-axle truck are given. The technique is demonstrated using measured strain on two bridges using pre-weighed trucks with different numbers of axles.
Type of Material
Journal Article
Publisher
Institution of Civil Engineers
Journal
Bridge Engineering, Proceedings of the Institution of Civil Engineers
Volume
159
Issue
BE1
Start Page
31
End Page
34
Copyright (Published Version)
2006, ICE Publishing Ltd
Keywords
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
Owning collection
Civil Engineering Research Collection