Calculating an influence line from direct measurements-Reference-Cited by-同舟云学术

Calculating an influence line from direct measurements

Published:2006-03 Issue:1 Volume:159 Page:31-34
ISSN:1478-4637
Container-title:Proceedings of the Institution of Civil Engineers - Bridge Engineering
language:en
Short-container-title:Proceedings of the Institution of Civil Engineers - Bridge Engineering

Author:

OBrien E. J.¹,Quilligan M. J.²,Karoumi R.³

Affiliation:

1. University College Dublin Ireland

2. Mott MacDonald Croydon, UK

3. Royal Institute of Technology Stockholm, Sweden

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.

Publisher

Thomas Telford Ltd.

Subject

Building and Construction,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/bren.2006.159.1.31

Reference7 articles.

1. McNulty P. Testing of an Irish Bridge Weigh-in-Motion System MEngSc thesis, 1999, University College Dublin.

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