Stop Criteria for Proof Load Testing of Reinforced Concrete Structures

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Abstract

Existing bridges with large uncertainties can be assessed with proof load tests. In such tests, a load representative of the factored live load is applied to the structure. If the bridge can carry the load without any signs of distress or nonlinearity, the test is considered successful. Since large loads are applied in proof load tests, the monitored structural responses are used to define stop criteria. This paper presents stop criteria for shear and flexural failure based on existing codes and guidelines and theoretical considerations. The proposal is verified with the available information from previous tests on reinforced concrete beams, the pilot proof load tests and a collapse test carried out in the Nether-lands. The results are that the stop criteria are not exceeded and therefore, the proposed stop criteria can be used for proof load tests. However, further experimental validation is needed, especially for shear failure.
Original languageEnglish
Number of pages9
Publication statusPublished - 2020
Event13th fib International PhD Symposium in Civil Engineering - Online due to COVID-19, Paris, France
Duration: 26 Aug 202028 Aug 2020
https://phdsymp2020.sciencesconf.org/

Conference

Conference13th fib International PhD Symposium in Civil Engineering
CountryFrance
CityParis
Period26/08/2028/08/20
Internet address

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