BELFA: an integrated bridge loading truck for application of the advanced test method EXTRA

Peter Schwesinger; Bianca Thor

doi:10.1117/12.435590

3 August 2001 BELFA: an integrated bridge loading truck for application of the advanced test method EXTRA

Peter Schwesinger, Bianca Thor

Proceedings Volume 4337, Health Monitoring and Management of Civil Infrastructure Systems; (2001) https://doi.org/10.1117/12.435590
Event: 6th Annual International Symposium on NDE for Health Monitoring and Diagnostics, 2001, Newport Beach, CA, United States

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.

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Peter Schwesinger and Bianca Thor "BELFA: an integrated bridge loading truck for application of the advanced test method EXTRA", Proc. SPIE 4337, Health Monitoring and Management of Civil Infrastructure Systems, (3 August 2001); https://doi.org/10.1117/12.435590

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KEYWORDS

Bridges

Control systems

Switches

Buildings

Prototyping

Computing systems

Roads

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