Stop criteria for proof load tests verified with field and laboratory testing of the Ruytenschildt Bridge

Eva Lantsoght, Yuguang Yang, Cor van der Veen, Dick Hordijk, Ane De Boer

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Abstract

As the existing bridge stock is aging, improved assessment methods such as proof load testing become increasingly important. Proof load testing involves large loads, and as such the risk for the structure and personnel can be significant. To capture the structural response, extensive measurements are applied to proof load tests. Stop criteria, based on the measured quantities, are used to identify when further loading in a proof load test is not permitted. For proof load testing of buildings, stop criteria are available in existing codes. For bridges, recently stop criteria based on laboratory tests on beams reinforced with plain bars have been proposed. Subsequently, improved stop criteria were developed based on theoretical considerations for bending moment and shear. The stop criteria from the codes and the proposed stop criteria are compared to the results from field testing to collapse on the Ruytenschildt Bridge, and to the results from laboratory tests on beams sawn from the Ruytenschildt Bridge. This comparison shows that only a small change to the stop criteria derived from laboratory testing is necessary. The experimental evidence strengthens the recommendation for using the proposed stop criteria in proof load tests on bridges for bending moment, whereas further testing to confirm the stop criteria for shear is necessary.
Original languageEnglish
Title of host publicationIABSE Conference 2018 – Engineering the Past, to Meet the Needs of the Future
Subtitle of host publicationJune 25-27 2018, Copenhagen, Denmark
Number of pages8
Publication statusPublished - 2018
EventIABSE Conference 2018: Engineering the Past, to Meet the Needs of the Future - Copenhagen, Denmark
Duration: 25 Jun 201827 Jun 2018
http://www.iabse.org/IABSE/events/Conferences_files/Copenhagen2018/Home.aspx?hkey=08d848da-9b39-43ca-bd1c-03c268a670ff

Conference

ConferenceIABSE Conference 2018
Abbreviated titleIABSE 2018
CountryDenmark
CityCopenhagen
Period25/06/1827/06/18
Internet address

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    Lantsoght, E., Yang, Y., van der Veen, C., Hordijk, D., & De Boer, A. (2018). Stop criteria for proof load tests verified with field and laboratory testing of the Ruytenschildt Bridge. In IABSE Conference 2018 – Engineering the Past, to Meet the Needs of the Future: June 25-27 2018, Copenhagen, Denmark