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Proceedings Paper

BELFA: an integrated bridge loading truck for application of the advanced test method EXTRA
Author(s): Peter Schwesinger; Bianca Thor
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Paper Abstract

In Germany a research group from four universities has developed an advanced experimental supported objective condition assessment method for concrete bridges, called 'EXTRA'. This method is useable preferably in cases, where conventional assessment methods cannot be applied successfully. In the past more than 200 bridges and buildings were evaluated regarding their real actual load bearing capacity using this method. An authorized guideline for the practical use at concrete structures is available. Until now the process of mounting and dismantling the loading structure was the most time-consuming part of such a test and influenced testing costs and duration of traffic interruption decisive. This background and the technical conception for development and testing the truck prototype with a maximum total loading capacity of 150 t will be introduced. Main subjects are a brief characterization of EXTRA method, the truck structure, the hydraulic loading system, measurement equipment and control facilities as well as the loading regime and belonging on-line information controlling the structure response as main parts of the testing process. The concept of the future employment of such trucks and ideas for a co-operation of consulting offices, owners and authorities will be short discussed. First testing experiences and an outlook on further activities will be given. Acknowledgments finalize the contribution.

Paper Details

Date Published: 3 August 2001
PDF: 8 pages
Proc. SPIE 4337, Health Monitoring and Management of Civil Infrastructure Systems, (3 August 2001); doi: 10.1117/12.435590
Show Author Affiliations
Peter Schwesinger, Bauhaus-Univ. Weimar (Germany)
Bianca Thor, Bauhaus-Univ. Weimar (Germany)

Published in SPIE Proceedings Vol. 4337:
Health Monitoring and Management of Civil Infrastructure Systems
Steven B. Chase; A. Emin Aktan, Editor(s)

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